Texas Instruments PCI1225GHK, PCI1225PDV Datasheet

PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
PCI Bus Power Management Interface
Specification 1.0 Compliant
ACPI 1.0 Compliant Fully Compatible With the Intel430TX
(Mobile Triton II) Chipset
Packaged in a 208-Pin Low-Profile QFP
(PDV) or GHK High Density Ball Grid Array (BGA)
PCI Local Bus Specification Revision 2.2
Compliant
1997 PC Card Standard Compliant PC 99 Compliant 3.3-V Core Logic With Universal PCI
Interfaces Compatible With 3.3-V and 5-V PCI Signaling Environments
Mix-and-Match 5-V/3.3-V 16-bit PC Cards
and 3.3-V CardBus Cards
Supports Two PC Card or CardBus Slots
With Hot Insertion and Removal
Uses Serial Interface to TI TPS2202/2206
Dual-Slot PC Card Power Switch
Supports Burst Transfers to Maximize Data
Throughput on the PCI Bus and CardBus Bus
Supports Parallel PCI Interrupts, Parallel
ISA IRQ and Parallel PCI Interrupts, Serial ISA IRQ With Parallel PCI Interrupts, and Serial ISA IRQ and PCI Interrupts
Serial EEPROM Interface for Loading
Subsystem ID and Subsystem Vendor ID
Table of Contents
Description 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Block Diagram 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T erminal Assignments 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Name/Terminal Number Sort Tables 6. . . . . . . . . . . . . . . . . . . . . . . . . .
T erminal Functions 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Sequencing 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O Characteristics 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clamping Rail Voltages 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peripheral Component Interconnect (PCI) Interface 23. . . . . . . . . . . . . . . .
PC Card Applications 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Bus Interface 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programmable Interrupt Subsystem 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Management Overview 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Card Controller Programming Model 45. . . . . . . . . . . . . . . . . . . . . . . . . .
PCI Configuration Registers (Functions 0 and 1) 46. . . . . . . . . . . . . . . . . . .
ExCA Compatibility Registers (Functions 0 and 1) 83. . . . . . . . . . . . . . . . . .
Pipelined Architecture Allows Greater Than
130-MBps Throughput From CardBus-to-PCI and From PCI-to-CardBus
Supports up to Five General-Purpose I/Os Programmable Output Select for CLKRUN Multifunction PCI Device With Separate
Configuration Space for Each Socket
Five PCI Memory Windows and T wo I/O
Windows Available for Each R2 Socket
Two I/O Windows and Two Memory
Windows Available to Each CardBus Socket
Exchangeable Card Architecture (ExCA)
Compatible Regesters Are Mapped in Memory and I/O Space
Intel 82365SL-DF Register Compatible Supports Distributed DMA (DDMA) and
PC/PCI DMA
Supports 16-Bit DMA on Both PC Card
Sockets
Supports Ring Indicate, SUSPEND, PCI
CLKRUN, and CardBus CCLKRUN
LED Activity Pins Supports PCI Bus Lock (LOCK) Advanced Submicron, Low-Power CMOS
T echnology
CardBus Socket Registers (Functions 0 and 1) 106. . . . . . . . . . . . . . . . . . . . . .
Distributed DMA (DDMA) Registers 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings 119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics 121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCI Clock/Reset Timing Requirements 122. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCI Timing Requirements 122. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Measurement Information 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCI Bus Parameter Measurement Information 124. . . . . . . . . . . . . . . . . . . . . . .
PC Card Cycle Timing 125. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Requirements (Memory Cycles) 126. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Requirements (I/O Cycles) 126. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switching Characteristics (Miscellaneous 127. . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Card Parameter Measurement Information 128. . . . . . . . . . . . . . . . . . . . . . .
Mechanical Data 129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Intel is a trademark of Intel Corporation.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2000, Texas Instruments Incorporated
1
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
description
The TI PCI1225 is a high-performance PCI-to-PC Card controller that supports two independent card sockets compliant with the 1997 PC Card Standard. The PCI1225 provides a rich feature set that makes it the best choice for bridging between PCI and PC Cards in both notebook and desktop computers. The 1997 PC Card Standard retains the 16-bit PC Card specification defined in PCMCIA Release 2.2 and defines the new 32-bit PC Card (CardBus), capable of full 32-bit data transfers at 33 MHz. The PCI1225 supports any combination of 16-bit and CardBus PC Cards in the two sockets, powered at 5 V or 3.3 V, as required.
The PCI1225 is compliant with the PCI Local Bus Specification 2.2, and its PCI interface can act as either a PCI master device or a PCI slave device. The PCI bus mastering is initiated during 16-bit PC Card DMA transfers or CardBus PC Card bridging transactions. The PCI1225 is also compliant with the latest
Management Interface Specification
All card signals are internally buffered to allow hot insertion and removal without external buffering. The PCI1225 is register compatible with the Intel 82365SL-DF ExCA controller. The PCI1225 internal data path logic allows the host to access 8-, 16-, and 32-bit cards using full 32-bit PCI cycles for maximum performance. Independent buffering and a pipeline architacture provide an unsurpassed performance level with sustained bursting. The PCI1225 can also be programmed to accept fast posted writes to improve system-bus utilization.
Multiple system-interrupt signaling options are provided, including: parallel PCI, parallel ISA, serialized ISA, and serialized PCI. Furthermore, general-purpose inputs and outputs are provided for the board designer to implement sideband functions. Many other features designed into the PCI1225, such as socket activity light-emitting diode (LED) outputs, are discussed in detail throughout the design specification.
.
PCI Bus Power
An advanced complementary metal-oxide semiconductor (CMOS) process is used to achieve low system-power consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes enable the host power management system to further reduce power consumption.
Unused PCI1225 inputs must be pulled up using a 43-k resistor.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
system block diagram
A simplified block diagram of the PCI1225 is provided below. The PCI interface includes all address/data and control signals for PCI protocol. The interrupt interface includes terminals for parallel PCI, parallel ISA, and serialized PCI and ISA signaling. Miscellaneous system interface terminals include multifunction terminals: SUSPEND
, RI_OUT/PME (power management control signal), and SPKROUT.
PCI Bus
INTA
Activity LEDs
INTB
Interrupt
Controller
TPS2206
Power
Switch
PC Card
Socket A
PC Card
Socket B
External ZV Port
NOTE: The PC Card interface is 68 pins for CardBus and 16-bit PC Cards. In zoomed-video mode 23 pins are used for routing the zoomed
video signals to the VGA controller and audio subsystem.
3
PCI1225
68 68
23
23
IRQSER
3
PCI930
ZV Switch
PCI950
IRQSER
Deserializer
Zoom Video
19
Zoom Video
4
IRQ2–15
VGA
Controller
Audio
Subsystem
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
terminal assignments
PDV LOW-PROFILE QUAD FLAT PACKAGE
TOP VIEW
MFUNC2 MFUNC3 MFUNC4 MFUNC5 MFUNC6
C/BE3
RI_OUT/PME
V
CC
AD25
PRST
GND
GNT
REQ AD31 AD30 AD11 AD29 AD28
V
CC AD27 AD26
V
CCP
AD24
PCLK
GND
IDSEL
AD23 AD22 AD21 AD20
V
CC AD19 AD18 AD17 AD16
C/BE2
FRAME
GND
IRDY
TRDY
DEVSEL
STOP PERR SERR
V
CC
PAR
C/BE1
AD15 AD14 AD13
GND
AD12
SUSPEND
GND
MFUNC0
DATA
SPKROUT
LATCH
CLOCK
152
151
150
149
VCCI
148
MFUNC1
154
153
156
155
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208
214365871091211141316151817201922212423262528273029323134333635383740394241444346454847504952
A_CAD31
A_CAD30
A_RSVD
146
145
147
V
A_CAD28
A_CAD29
142
144
143
A_CCD2
A_CAD27
A_CCLKRUN
140
139
141
A_CAUDIO
A_CSTSCHG
138
137
CC
A_CINT
A_CSERR
A_CVS1
134
136
135
A_CAD25
A_CAD26
A_CAD24
132
131
133
PCI1225 CorePCI
A_CC/BE3
A_CAD23
GND
128
130
129
Card A
A_CAD21
A_CAD22
A_CREQ
126
125
127
A_CRST
124
A_CAD20
A_CAD19
A_CVS2
122
121
123
Card B
CCA
V
A_CAD18
119
120
A_CC/BE2
A_CAD17
118
117
CC
A_CFRAME
A_CTRDY
A_CIRDY
114
113
116
115
A_CCLKVA_CDEVSEL
112
A_CGNT
111
110
A_CSTOP
A_CBLOCK
A_CPERR
108
107
109
A_RSVD
A_CPAR
105 104
103 102 101 100
51 106
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
A_CC/BE1 A_CAD16 A_CAD14 A_CAD15 A_CAD12 A_CAD13 A_CAD11 A_CAD10 GND A_CAD9 A_CC/BE0 A_CAD8 A_CAD7 A_RSVD A_CAD5 A_CAD6 A_CAD3 A_CAD4
V
CC A_CAD1 A_CAD2 A_CAD0 A_CCD1 B_CAD31 B_RSVD B_CAD30 B_CAD29 B_CAD28 B_CAD27 GND B_CCD2 B_CCLKRUN B_CSTSCHG B_CAUDIO B_CSERR B_CINT B_CVS1 B_CAD26 B_CAD25 B_CAD24 V
CC B_CC/BE3
B_CAD23 B_CREQ B_CAD22 B_CAD21 B_CRST B_CAD20 B_CVS2 B_CAD19 B_CAD18 B_CAD17
CCP
V
AD10
AD9
AD8
AD7
C/BE0
CC
AD6
AD5
AD3
AD1
AD0
AD2
AD4
V
GND
B_CAD0
B_CAD2
B_CCD1
B_CAD1
B_CAD4
B_CAD3
GND
B_CAD6
B_CAD5
B_CAD7
B_RSVD
B_CAD8
B_CAD9
B_CAD10
B_CC/BE0
CC
V
B_CAD11
B_CAD13
B_CAD14
B_CAD12
B_CAD15
CCB
V
B_CAD16
B_CC/BE1
B_CPAR
B_RSVD
B_CBLOCK
GND
B_CSTOP
B_CPERR
B_CCLK
B_CGNT
B_CDEVSEL
B_CIRDY
B_CTRDY
B_CFRAME
B_CC/BE2
PCI-to-CardBus Terminal Diagram
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
terminal assignments (continued)
PDV LOW-PROFILE QUAD FLAT PACKAGE
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
TOP VIEW
MFUNC2 MFUNC3 MFUNC4 MFUNC5 MFUNC6
C/BE3
RI_OUT/PME
V
CC
AD25
PRST
GND
GNT
REQ AD31 AD30 AD11 AD29 AD28
V
CC AD27 AD26
V
CCP
AD24
PCLK
GND
IDSEL
AD23 AD22 AD21 AD20
V
CC AD19 AD18 AD17
AD16
C/BE2
FRAME
GND IRDY
TRDY
DEVSEL
STOP PERR SERR
V
CC
PAR
C/BE1
AD15 AD14 AD13
GND
AD12
A_D10
A_D2
146
147
A_D9
A_D1
144
145
CC
V
143
A_D8
A_D0
142
141
A_CD2
A_WP(IOIS16)
140
139
A_BVD1(STSCHG/RI)
A_READY(IREQ)
A_WAIT
A_A0
A_VS1
A_A2
136
135
134
133
A_A1
132
131
A_BVD2(SPKR)
138
137
PCI1225 CorePCI
A_REG
GND
130
129
Card A
A_A3
128
A_INPACK
127
A_A4
126
A_A5
125
CCI
SPKROUT
GND
MFUNC0
DATA
LATCH
CLOCK
152
151
150
149
V
148
SUSPEND
MFUNC1
154
153
156
155
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208
214365871091211141316151817201922212423262528273029323134333635383740394241444346454847504952
A_A6
A_RESET
A_VS2
122
124
123
Card B
CCA
A_A25
V
120
121
A_A7
119
A_A24
118
A_A23
A_A12
116
117
A_A22
A_A15
114
115
CC
A_A16VA_A21
112
113
111
A_A20
A_WE
110
109
A_A19
A_A14
108
107
A_A18
A_A13
105
104 103 102 101 100
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
51 106
A_A8 A_A17 A_A9 A_IOWR A_A11 A_IORD A_OE A_CE2 GND A_A10 A_CE1 A_D15 A_D7 A_D14 A_D6 A_D13 A_D5 A_D12
V
CC A_D4 A_D11 A_D3 A_CD1 B_D10 B_D2 B_D9 B_D1 B_D8 B_D0 GND B_CD2 B_WP(IOIS16) B_BVD1(STSCHG/RI) B_BVD2(SPKR) B_WAIT B_READY(IREQ) B_VS1 B_A0 B_A1 B_A2 V
CC B_REG B_A3 B_INPACK B_A4 B_A5 B_RESET B_A6
B_VS2 B_A25 B_A7 B_A24
CCP
V
AD9
AD10
AD8
AD7
C/BE0
CC
AD4
AD6
AD5
AD3
AD1
AD0
V
AD2
GND
B_D3
B_CD1
B_D11
B_D4
B_D5
B_D12
GND
B_D6
B_D13
B_D7
B_D14
B_D15
B_CE1
B_A10
B_CE2
V
CC
B_OE
B_IORD
B_A11
B_IOWR
B_A9
CCB
V
B_A17
B_A8
B_A18
B_A13
B_A19
GND
B_A14
B_WE
B_A20
B_A21
B_A16
B_A15
B_A22
B_A23
B_A12
PCI-to-PC Card (16-Bit) Terminal Diagram
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
5
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
terminal assignments (continued)
W
V U T R P N
M
L K J H G F E D C B A
GHK PLASTIC BALL GRID ARRAY
BOTTOM VIEW
1
3
2
75
9
6
4
810
12
13141511
16
18
1917
signal names and terminal assignments
Table 1 and Table 2 show the terminal assignments for the CardBus PC Card; Table 3 and Table 4 show the terminal assignments for the 16-bit PC Card; Table 1 and Table 3 show the CardBus PC Card and the 16-bit PC Card terminals sorted alphanumerically by the associated GHK package terminal number; and Table 2 and Table 4 show the CardBus PC Card and the 16-bit PC Card terminals sorted alphanumerically by the signal name and its associated terminal numbers.
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TERM. NO.
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
GHK PDV
D1 1 A4 208 E6 206 C6 202
F7 198 E8 194 A8 190 B9 186
C10 182 E11 178 A12 174 A13 170 A14 166 A15 162 E14 159 C15 158 A16 157
E3 2 C5 207 B5 205 A5 203 A6 199 A7 195 B8 191 C9 187
E10 183 F11 179 A11 175 E12 171 F12 167 C14 163 F13 160 E17 155 D19 156
F5 3 G6 4 E2 5
F6 204 B6 200 B7 196 C8 192
F9 188
F10 184 A10 180 B11 176 C12 172 C13 168 B14 164 B15 161 E18 153 F15 154
E1 6
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
T able 1. CardBus PC Card Signal Names by GHK/PDV Terminal Number
V
CCP
AD12 AD13 PAR STOP GND AD17 AD20 IDSEL V
CCP
AD28 AD31 PRST C/BE3 MFUNC4 MFUNC3 MFUNC2 AD10 GND AD14 C/BE1 PERR IRDY AD16 V
CC
AD23 AD24 V
CC
AD30 GND RI_OUT/PME MFUNC5 MFUNC1 SUSPEND AD9 AD8 C/BE0 AD15 SERR TRDY C/BE2 AD19 AD22 PCLK AD27 AD11 GNT V
CC
MFUNC6/CLKRUN GND MFUNC0 AD7
TERM. NO.
GHK PDV
F3 7 F2 8 E7 201 C7 197 F8 193 E9 189
A9 185 B10 181 C11 177 B12 173 B13 169 E13 165 G15 149 F14 152 E19 151 F17 150
F1 10
H6 11
G3 12
G5 9 G17 145 F18 148 F19 147 G14 146
G1 14
H5 15 H3 16
G2 13 H14 141 G18 144 G19 143 H15 142
H1 18 J1 19 J2 20
H2 17 J15 137 H17 140 H18 139 H19 138
J5 22
J6 23
K1 24
J3 21 J19 133 J14 136 J17 135 J18 134
K3 26
K5 27
K6 28
K2 25
V
CC
AD6 V
CC
DEVSEL FRAME AD18 AD21 GND AD26 AD29 REQ AD25 SPKROUT DATA CLOCK LATCH AD4 AD3 AD2 AD5 A_CAD30 V
CCI
A_CAD31 A_RSVD AD1 AD0 B_CCD1 GND A_CAD27 A_CAD29 V
CC
A_CAD28 B_CAD2 B_CAD1 B_CAD4 B_CAD0 A_CAUDIO A_CCD2 A_CCLKRUN A_CSTSCHG GND B_CAD6 B_CAD5 B_CAD3 A_CAD26 A_CSERR A_CINT A_CVS1 B_CAD7 B_CAD8 B_CC/BE0 B_RSVD
TERM. NO.
GHK PDV
K18 129 K14 132 K15 131 K17 130
L2 30 L3 31 L6 32
L1 29 L17 125 K19 128 L14 127 L15 126
M1 34 M2 35 M3 36
L5 33
M18 121
L18 124 L19 123
M19 122
M5 38
N1 39
N2 40
M6 37
N18 117 M17 120 M15 119
N19 118
N6 42 P1 43 P2 44
N3 41 N15 113 N17 116
M14 115
P19 114
P3 46
R1 47
P6 48
N5 45
R7 61
V7 65
V8 69
U9 73 V10 77
W11 81
R11 85 P12 89 U13 93 R13 97 P18 112 P17 111
GND A_CAD25 A_CAD24 A_CC/BE3 B_CAD10 V
CC
B_CAD11 B_CAD9 A_CAD21 A_CAD23 A_CREQ A_CAD22 B_CAD12 B_CAD15 B_CAD14 B_CAD13 A_CAD19 A_CRST A_CAD20 A_CVS2 V
CCB
B_CC/BE1 B_RSVD B_CAD16 A_CC/BE2 V
CCA
A_CAD18 A_CAD17 B_CBLOCK B_CPERR GND B_CPAR V
CC
A_CFRAME A_CIRDY A_CTRDY B_CGNT B_CDEVSEL B_CCLK B_CSTOP B_CREQ B_CAD24 B_CINT B_CCLKRUN B_CAD28 B_CAD31 A_CAD1 A_CAD6 A_CAD8 A_CAD10 A_CCLK A_CDEVSEL
PCI1225 GHK/PDV
TERM. NO.
GHK PDV
R19 110
P5 50
R2 49
V5 57
V6 60 U7 64 U8 68
V9 72
W10 76
P10 80 P11 84 U12 88 V13 92 V14 96 P14 100 R18 109 N14 108 P15 107
T1 52 R3 51
P7 56 U6 59
P8 63 R8 67 W9 71
P9 75
R10 79 U11 83
V12 87 W13 91 W14 95 W15 99
V15 101
U15 103
R17 106
W4 53 U5 54 R6 55 W5 58 W6 62 W7 66 W8 70
R9 74 U10 78 V11 82
W12 86
R12 90 P13 94 U14 98 R14 102
W16 104
T19 105
A_CGNT B_CIRDY B_CTRDY B_CAD20 B_CAD22 V
CC
B_CVS1 B_CSTSCHG B_CAD27 B_RSVD A_CAD2 A_CAD3 A_CAD7 GND A_CAD12 A_CSTOP A_CPERR A_CBLOCK B_CC/BE2 B_CFRAME B_CVS2 B_CAD21 B_CC/BE3 B_CAD26 B_CAUDIO GND B_CAD30 A_CAD0 A_CAD4 A_RSVD A_CAD9 A_CAD13 A_CAD15 A_CAD16 A_CPAR B_CAD17 B_CAD18 B_CAD19 B_CRST B_CAD23 B_CAD25 B_CSERR B_CCD2 B_CAD29 A_CCD1 V
CC
A_CAD5 A_CC/BE0 A_CAD11 A_CAD14 A_CC/BE1 A_RSVD
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
7
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Table 2. CardBus PC Card Signal Names Sorted Alphabetically
SIGNAL NAME
A_CAD0 A_CAD1 A_CAD2 A_CAD3 A_CAD4 A_CAD5 A_CAD6 A_CAD7 A_CAD8 A_CAD9 A_CAD10 A_CAD11 A_CAD12 A_CAD13 A_CAD14 A_CAD15 A_CAD16 A_CAD17 A_CAD18 A_CAD19 A_CAD20 A_CAD21 A_CAD22 A_CAD23 A_CAD24 A_CAD25 A_CAD26 A_CAD27 A_CAD28 A_CAD29 A_CAD30 A_CAD31 A_CAUDIO A_CBLOCK A_CC/BE0 A_CC/BE1 A_CC/BE2 A_CC/BE3 A_CCD1 A_CCD2 A_CCLK A_CCLKRUN A_CDEVSEL A_CFRAME A_CGNT A_CINT A_CIRDY A_CPAR A_CPERR A_CREQ A_CRST A_CSERR
TERM. NO.
GHK PDV
U11 83 R11 85 P11 84 U12 88 V12 87 R12 90 P12 89 V13 92 U13 93
W14 95
R13 97 U14 98 P14 100
W15 99
R14 102 V15 101 U15 103
N19 118 M15 119 M18 121
L19 123
L17 125
L15 126 K19 128 K15 131 K14 132
J19 133 H14 141 H15 142 G18 144 G17 145
F19 147
J15 137 P15 107 P13 94
W16 104
N18 117 K17 130
V11 82 H17 140 P18 112 H18 139 P17 111 N17 116 R19 110
J17 135 M14 115 R17 106 N14 108
L14 127
L18 124
J14 136
SIGNAL NAME
A_CSTOP A_CSTSCHG A_CTRDY A_CVS1 A_CVS2 A_RSVD A_RSVD A_RSVD AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 AD16 AD17 AD18 AD19 AD20 AD21 AD22 AD23 AD24 AD25 AD26 AD27 AD28 AD29 AD30 AD31 B_CAD0 B_CAD1 B_CAD2 B_CAD3 B_CAD4 B_CAD5 B_CAD6 B_CAD7 B_CAD8 B_CAD9 B_CAD10 B_CAD11
TERM. NO.
GHK PDV
R18 109 H19 138 P19 114
J18 134
M19 122
G14 146
W13 91
T19 105
H5 15 G1 14 G3 12
H6 11
F1 10 G5 9
F2 8
E1 6 G6 4
F5 3
E3 2
C12 172
A4 208
E6 206
B5 205
F6 204
B8 191
A8 190
E9 189
F9 188
B9 186
A9 185
F10 184 E10 183
F11 179 E13 165 C11 177 B11 176 A12 174 B12 173 E12 171 A13 170
H2 17
J1 19
H1 18
J3 21 J2 20
K1 24
J6 23 K3 26 K5 27 L1 29 L2 30 L6 32
SIGNAL NAME
B_CAD12 B_CAD13 B_CAD14 B_CAD15 B_CAD16 B_CAD17 B_CAD18 B_CAD19 B_CAD20 B_CAD21 B_CAD22 B_CAD23 B_CAD24 B_CAD25 B_CAD26 B_CAD27 B_CAD28 B_CAD29 B_CAD30 B_CAD31 B_CAUDIO B_CBLOCK B_CC/BE0 B_CC/BE1 B_CC/BE2 B_CC/BE3 B_CCD1 B_CCD2 B_CCLK B_CCLKRUN B_CDEVSEL B_CFRAME B_CGNT B_CINT B_CIRDY B_CPAR B_CPERR B_CREQ B_CRST B_CSERR B_CSTOP B_CSTSCHG B_CTRDY B_CVS1 B_CVS2 B_RSVD B_RSVD B_RSVD C/BE0 C/BE1 C/BE2 C/BE3
TERM. NO.
GHK PDV
M1 34
L5 33 M3 36 M2 35 M6 37 W4 53
U5 54 R6 55 V5 57 U6 59 V6 60
W6 62
V7 65
W7 66
R8 67
W10 76
V10 77 U10 78 R10 79
W11 81
W9 71
N6 42 K6 28 N1 39 T1 52 P8 63 H3 16 R9 74 P6 48 U9 73 R1 47 R3 51 P3 46 V8 69 P5 50 N3 41 P1 43
R7 61 W5 58 W8 70
N5 45
V9 72
R2 49
U8 68
P7 56
K2 25
N2 40
P10 80
E2 5
A5 203
C8 192
A15 162
SIGNAL NAME
CLOCK DATA DEVSEL FRAME GND GND GND GND GND GND GND GND GND GND GND GNT IDSEL IRDY LATCH MFUNC0 MFUNC1 MFUNC2 MFUNC3 MFUNC4 MFUNC5 MFUNC6/CLKRUN PAR PCLK PERR PRST REQ RI_OUT/PME SERR SPKROUT STOP SUSPEND TRDY V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CCA
V
CCB
V
CCI
V
CCP
V
CCP
PIN NO.
GHK PDV
E19 151 F14 152
C7 197 F8 193 E8 194
C5 207 F12 167 E18 153 B10 181
G2 13
J5 22
K18 129
P2 44 V14 96
P9 75 C13 168 C10 182
A7 195 F17 150 F15 154 E17 155 A16 157 C15 158 E14 159 F13 160 B15 161
C6 202 A10 180
A6 199 A14 166 B13 169 C14 163
B6 200 G15 149
F7 198 D19 156
B7 196
C9 187 A11 175 B14 164
F3 7
E7 201 G19 143
L3 31 N15 113
U7 64
W12 86
M17 120
M5 38 F18 148
D1 1 E11 178
8
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Table 3. 16-Bit PC Card Signal Names by GHK/PDV Terminal Number
TERMINAL NO.
GHK PDV
D1 1 V A4 208 AD12 F2 8 AD6 K14 132 A_A1 E6 206 AD13 E7 201 V C6 202 PAR C7 197 DEVSEL K17 130 A_REG F7 198 STOP F8 193 FRAME L2 30 B_CE2 E8 194 GND E9 189 AD18 L3 31 V A8 190 AD17 A9 185 AD21 L6 32 B_OE B9 186 AD20 B10 181 GND L1 29 B_A10
C10 182 IDSEL C11 177 AD26 L17 125 A_A5
E11 178 V A12 174 AD28 B13 169 REQ L14 127 A_INPACK A13 170 AD31 E13 165 AD25 L15 126 A_A4 A14 166 PRST G15 149 SPKROUT M1 34 B_A11 A15 162 C/BE3 F14 152 DATA M2 35 B_IOWR E14 159 MFUNC4 E19 151 CLOCK M3 36 B_A9 C15 158 MFUNC3 F17 150 LATCH L5 33 B_IORD A16 157 MFUNC2 F1 10 AD4 M18 121 A_A25
E3 2 AD10 H6 11 AD3 L18 124 A_RESET C5 207 GND G3 12 AD2 L19 123 A_A6 B5 205 AD14 G5 9 AD5 M19 122 A_VS2 A5 203 C/BE1 G17 145 A_D9 M5 38 V A6 199 PERR F18 148 V A7 195 IRDY F19 147 A_D10 N2 40 B_A18 B8 191 AD16 G14 146 A_D2 M6 37 B_A17 C9 187 V
E10 183 AD23 H5 15 AD0 M17 120 V
F11 179 AD24 H3 16 B_CD1 M15 119 A_A7
A11 175 V E12 171 AD30 H14 141 A_D0 N6 42 B_A19 F12 167 GND G18 144 A_D1 P1 43 B_A14 C14 163 RI_OUT/PME G19 143 V F13 160 MFUNC5 H15 142 A_D8 N3 41 B_A13 E17 155 MFUNC1 H1 18 B_D11 N15 113 V D19 156 SUSPEND J1 19 B_D4 N17 116 A_A23
F5 3 AD9 J2 20 B_D12 M14 115 A_A15 G6 4 AD8 H2 17 B_D3 P19 114 A_A22 E2 5 C/BE0 J15 137 A_BVD2(SPKR) P3 46 B_WE F6 204 AD15 H17 140 A_CD2 R1 47 B_A21 B6 200 SERR H18 139 A_WP(IOIS16) P6 48 B_A16 B7 196 TRDY H19 138 A_BVD1(STSCHG/RI) N5 45 B_A20 C8 192 C/BE2 J5 22 GND R7 61 B_INPACK
F9 188 AD19 J6 23 B_D13 V7 65 B_A2 F10 184 AD22 K1 24 B_D6 V8 69 B_READY(IREQ) A10 180 PCLK J3 21 B_D5 U9 73 B_WP(IOIS16)
B11 176 AD27 J19 133 A_A0 V10 77 B_D8 C12 172 AD11 J14 136 A_WAIT W11 81 B_D10 C13 168 GNT J17 135 A_READY(IREQ) R11 85 A_D4 B14 164 V B15 161 MFUNC6 K3 26 B_D7 U13 93 A_D15 E18 153 GND K5 27 B_D15 R13 97 A_CE2 F15 154 MFUNC0 K6 28 B_CE1 P18 112 A_A16
SIGNAL NAME
CCP
CCP
CC
CC
CC
TERMINAL NO.
GHK PDV
F3 7 V
B12 173 AD29 K19 128 A_A3
G1 14 AD1 N18 117 A_A12
G2 13 GND N19 118 A_A24
J18 134 A_VS1 P12 89 A_D13
SIGNAL NAME
CC
CC
CCI
CC
TERMINAL NO.
GHK PDV
K18 129 GND
K15 131 A_A2
CC
CCB
N1 39 B_A8
CCA
P2 44 GND
CC
SIGNAL NAME
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
9
PCI1225 GHK/PDV
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Table 3. 16-Bit PC Card Signal Names by GHK/PDV Terminal Number (Continued)
TERMINAL NO.
GHK PDV
E1 6
R19 110
P5 R2 V5 V6 U7 U8 V9
W10
P10 P11 U12 V13 V14 P14 R18 109 N14 108 P15 107
50 B_A15 49 B_A22 57 B_A6 60 B_A4 64 V 68 B_VS1 72 B_BVD1(STSCHG/RI) 76 B_D0 80 B_D2 84 A_D11 88 A_D5 92 A_D7 96 GND
100 A_A11
A_A0 A_A1 A_A2 A_A3 A_A4 A_A5 A_A6 A_A7 A_A8 A_A9 A_A10 A_A11 A_A12 A_A13 A_A14 A_A15 A_A16 A_A17 A_A18 A_A19
SIGNAL NAME
AD7 A_WE
CC
A_A20 A_A14 A_A19
TERMINAL
NO.
GHK PDV
K2 25
T1 R3 P7 U6 P8 R8
W9
P9 R10 U11 V12
W13 W14 W15
V15 U15 R17 106
W4
52 B_A12 51 B_A23 56 B_VS2 59 B_A5 63 B_REG 67 B_A0 71 B_BVD2(SPKR) 75 GND 79 B_D9 83 A_D3 87 A_D12 91 A_D14 95 A_A10
99 A_IORD 101 A_IOWR 103 A_A17
53 B_A24
SIGNAL NAME
B_D14
A_A13
TERMINAL
NO.
GHK PDV
P17 111
U5
R6 W5 W6 W7 W8
R9
U10
V11
W12
R12 P13 U14 R14
W16
T19 105
54 B_A7 55 B_A25 58 B_RESET 62 B_A3 66 B_A1 70 B_WAIT 74 B_CD2 78 B_D1 82 A_CD1 86 V 90 A_D6 94 A_CE1
98 A_OE 102 A_A9 104 A_A8
Table 4. 16-Bit PC Card Signal Names Sorted Alphabetically
TERMINAL NO.
GHK PDV
J19 133 K14 132 K15 131 K19 128 L15 126 L17 125
L19 123 M15 119 W16
R14
W14
P14 N18 117 R17 106 N14 108
M14 115
P18 112 U15 T19 105 P15 107
104 A_CD1 102 A_CD2
95 A_CE1
100 A_CE2
103 A_D5
A_A20 A_A21 A_A22 A_A23 A_A24 A_A25 A_BVD1(STSCHG/RI) A_BVD2(SPKR)
A_D0 A_D1 A_D2 A_D3 A_D4
A_D6 A_D7
TERMINAL NO.
GHK PDV
R18 109 P17 111 P19 114 N17 116 N19 118
M18 121
H19 138
J15 137 V11 H17 140 P13 R13 H14 141 G18 144 G14 146 U11 R11 U12 R12 V13
82 A_INPACK
94 A_IOWR 97 A_OE
83 A_VS1 85 A_VS2 88 A_WAIT 90 A_WE 92 A_WP(IOIS16)
A_D8 A_D9 A_D10 A_D11 A_D12 A_D13 A_D14 A_D15
A_IORD
A_READY(IREQ) A_REG A_RESET
SIGNAL NAME
A_A21
CC
A_A18
TERMINAL NO.
GHK PDV
H15 142 G17 145 F19 147 P11 V12 P12
W13
U13 L14 127
W15
V15 U14
J17 135 K17 130 L18 124
J18 134
M19 122
J14 136 R19 110 H18 139
84 87 89 91 93
99
101
98
10
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PCI1225 GHK/PDV
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Table 4. 16-Bit PC Card Signal Names Sorted Alphabetically (Continued)
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 AD16 AD17 AD18 AD19 AD20 AD21 AD22 AD23 AD24 AD25 AD26 AD27 AD28 AD29 AD30 AD31 B_A0 B_A1 B_A2 B_A3 B_A4 B_A5 B_A6 B_A7 B_A8 B_A9 B_A10 B_A11 B_A12 B_A13 B_A14 B_A15 B_A16 B_A17
TERMINAL NO.
GHK PDV
H5 15 G1 14 G3 12 H6 11 F1 10 G5 9 F2 8 E1 6 G6 4 F5 3 E3 2
C12 172
A4 208 E6 206 B5 205 F6 204 B8 191 A8 190 E9 189 F9 188 B9 186
A9 185 F10 184 E10 183 F11 179 E13 165 C11 177 B11 176 A12 174 B12 173 E12 171 A13 170
R8
W7
V7
W6
V6
U6
V5
U5
N1
M3
L1
M1
T1
N3
P1
P5
P6
M6
67 B_IOWR 66 B_OE 65 B_READY(IREQ) 62 B_REG 60 B_RESET 59 B_VS1 57 B_VS2 54 B_WAIT 39 B_WE 36 B_WP(IOIS16) 29 C/BE0 34 C/BE1 52 C/BE2 41 C/BE3 43 CLOCK 50 DATA 48 DEVSEL 37 FRAME
B_A18 B_A19 B_A20 B_A21 B_A22 B_A23 B_A24 B_A25 B_BVD1(STSCHG/RI) B_BVD2(SPKR) B_CD1 B_CD2 B_CE1 B_CE2 B_D0 B_D1 B_D2 B_D3 B_D4 B_D5 B_D6 B_D7 B_D8 B_D9 B_D10 B_D11 B_D12 B_D13 B_D14 B_D15 B_INPACK B_IORD
TERMINAL NO.
GHK PDV
N2 N6 N5 R1 R2 R3
W4
R6 V9
W9
H3 16 R9 K6 L2
W10
U10 P10
H2 17
J1
J3 21 K1 K3
V10 R10
W11
H1 18
J2
J6 K2 K5 R7 L5
M2
L6 V8 P8
W5
U8 P7
W8
P3 U9 E2 5 A5 203 C8 192
A15 162 E19 151 F14 152
C7 197 F8 193
40 GND 42 GND 45 GND 47 GND 49 GND 51 GND 53 GND 55 GND 72 GND 71 GND
74 GNT 28 IDSEL 30 IRDY 76 LATCH 78 MFUNC0 80 MFUNC1
19 MFUNC3
24 MFUNC5 26 MFUNC6 77 PAR 79 PCLK 81 PERR
20 REQ 23 RI_OUT/PME 25 SERR 27 SPKROUT 61 STOP 33 SUSPEND 35 TRDY 32 V 69 V 63 V 58 V 68 V 56 V 70 V 46 V 73 V
GND
MFUNC2
MFUNC4
PRST
CC CC CC CC CC CC CC CC CC
V
CC
V
CCA
V
CCB
V
CCI
V
CCP
V
CCP
TERMINAL NO.
GHK PDV
E8 194
C5 207 F12 167 E18 153 B10 181
G2 13
J5 K18 129
P2 V14
P9 C13 168 C10 182
A7 195 F17 150 F15 154 E17 155 A16 157 C15 158 E14 159 F13 160 B15 161
C6 202 A10 180
A6 199 A14 166 B13 169 C14 163
B6 200 G15 149
F7 198 D19 156
B7 196 A11 175
C9 187 B14 164
F3 7
E7 201 G19 143
L3 N15 113
U7
W12
M17 120
M5 F18 148
D1 1 E11 178
22
44 96 75
31
64 86
38
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11
PCI1225 GHK/PDV
FUNCTION
FUNCTION
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions
The terminals are grouped in tables by functionality, such as PCI system function, power-supply function, etc. The terminal numbers are also listed for convenient reference.
power supply
TERMINAL
NAME PDV NUMBER GHK NUMBER
GND
V
CC
V
CCA
V
CCB
V
CCI
V
CCP
13, 22, 44, 75, 96, 129, 153,
167, 181, 194, 207
7, 31, 64, 86, 113, 143, 164,
175, 187, 201
120 M17
38 M5
148 F18
1, 178 D1, E11 Rail voltage for PCI signaling (5 V or 3.3 V)
G2, J5, P2, P9, V14, K18, E18,
F12, B10, E8, C5
F3, L3, U7, W12, N15, G19,
B14, A11, C9, E7
Device ground terminals
Power supply terminal for core logic (3.3 V) Rail voltage for PC Card A interface. Indicates Card A
signaling environment (5 V or 3.3 V) Rail voltage for PC Card B interface. Indicates Card B
signaling environment (5 V or 3.3 V) Rail voltage for interrupt subsystem interface and
miscellaneous I/O (5 V or 3.3 V)
FUNCTION
PC Card power switch
TERMINAL
NAME
CLOCK 151 E19 I/O
DATA 152 F14 O
LATCH 150 F17 O
NUMBER
PDV GHK
TYPE
PCI system
TERMINAL
NAME
PCLK 180 A10 I
PRST
NUMBER
PDV GHK
166 A14 I
TYPE
I/O
Three-line power switch clock. Information on the DATA line is sampled at the rising edge of CLOCK. CLOCK defaults to an input, but can be changed to a PCI1225 output by using the P2CCLK bit in the system control register. The TPS2206 defines the maximum frequency of this signal to be 2 MHz.
If a system design defines this terminal as an output, then this terminal requires an external pull down resistor. The frequency of the PCI1225 output CLOCK is derived from dividing the PCI CLK by 36.
Three-line power switch data. DATA is used to serially communicate socket power control information to the power switch.
Three-line power switch latch. LATCH is asserted by the PCI1225 to indicate to the PC Card power switch that the data on the DATA line is valid. When a pulldown resistor is implemented on this terminal, the MFUNC4 and MFUNC1 terminals provide the serial EEPROM SCL and SDA interface.
I/O
PCI bus clock. PCLK provides timing for all transactions on the PCI bus. All PCI signals are sampled at the rising edge of PCLK.
PCI reset. When the PCI bus reset is asserted, PRST causes the PCI1225 to place all output buffers in a high-impedance state and reset all internal registers. When PRST completely nonfunctional. After PRST
When SUSPEND registers. All outputs are placed in a high-impedance state, but the contents of the registers are preserved.
and PRST are asserted, the device is protected from PRST clearing the internal
FUNCTION
FUNCTION
is asserted, the device is
is deasserted, the PCI1225 is in its default state.
12
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PCI address and data
NAME
TYPE
TERMINAL
NUMBER
PDV GHK
AD31 AD30 AD29 AD28 AD27 AD26 AD25 AD24 AD23 AD22 AD21 AD20 AD19 AD18 AD17 AD16 AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0
C/BE3 C/BE2 C/BE1 C/BE0
PAR 202 C6 I/O
170 171 173 174 176 177 165 179 183 184 185 186 188 189 190 191 204 205 206 208 172
2 3 4 6 8 9
10
11 12 14 15
162 192 203
5
A13 E12 B12 A12 B11 C11 E13 F11 E10 F10
A9 B9 F9 E9 A8 B8 F6 B5 E6 A4
C12
E3 F5
G6
E1 F2
G5
F1 H6 G3 G1 H5
A15
C8
A5
E2
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
I/O
PCI address/data bus. These signals make up the multiplexed PCI address and data bus on the primary interface. During the address phase of a primary bus PCI cycle, AD31–AD0 contain a 32-bit address or other
I/O
destination information. During the data phase, AD31–AD0 contain data.
PCI bus commands and byte enables. These signals are multiplexed on the same PCI terminals. During the address phase of a primary bus PCI cycle, C/BE3 phase, this 4-bit bus is used as byte enables. The byte enables determine which byte paths of the full 32-bit
I/O
data bus carry meaningful data. C/BE0 C/BE2
applies to byte 2 (AD23–AD16), and C/BE3 applies to byte 3 (AD31–AD24).
PCI bus parity. In all PCI bus read and write cycles, the PCI1225 calculates even parity across the AD31–AD0 and C/BE3 indicator with a one-PCLK delay. As a target during PCI cycles, the calculated parity is compared to the initiator parity indicator . A compare error results in the assertion of a parity error (PERR
–C/BE0 buses. As an initiator during PCI cycles, the PCI1225 outputs this parity
FUNCTION
–C/BE0 define the bus command. During the data
applies to byte 0 (AD7–AD0), C/BE1 applies to byte 1 (AD15–AD8),
).
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13
PCI1225 GHK/PDV
NAME
TYPE
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
PCI interface control
TERMINAL
NUMBER
PDV GHK
DEVSEL
FRAME
GNT
IDSEL 182 C10 I
IRDY
PERR REQ
SERR
STOP
TRDY
197 C7 I/O
193 F8 I/O
168 C13 I
195 A7 I/O
199 A6 I/O 169 B13 O PCI bus request. REQ is asserted by the PCI1225 to request access to the PCI bus as an initiator.
200 B6 O
198 F7 I/O
196 B7 I/O
I/O
Terminal Functions (Continued)
FUNCTION
PCI device select. The PCI1225 asserts DEVSEL to claim a PCI cycle as the target device. As a PCI initiator on the bus, the PCI1225 monitors DEVSEL before timeout occurs, the PCI1225 terminates the cycle with an initiator abort.
PCI cycle frame. FRAME is driven by the initiator of a bus cycle. FRAME is asserted to indicate that a bus transaction is beginning, and data transfers continue while this signal is asserted. When
is deasserted, the PCI bus transaction is in the final data phase.
FRAME PCI bus grant. GNT is driven by the PCI bus arbiter to grant the PCI1225 access to the PCI bus after
the current data transaction has completed. GNT depending on the PCI bus parking algorithm.
Initialization device select. IDSEL selects the PCI1225 during configuration space accesses. IDSEL can be connected to one of the upper 24 PCI address lines on the PCI bus.
PCI initiator ready. IRDY indicates the PCI bus initiator’s ability to complete the current data phase of the transaction. A data phase is completed on a rising edge of PCLK where both IRDY are asserted. Until IRDY and TRDY are both sampled asserted, wait states are inserted.
PCI parity error indicator. PERR is driven by a PCI device to indicate that calculated parity does not match PAR when PERR
PCI system error. SERR is an output that is pulsed from the PCI1225 when enabled through the command register indicating a system error has occurred. The PCI1225 need not be the target of the PCI cycle to assert this signal. When SERR indicating that an address parity error has occurred on a CardBus interface.
PCI cycle stop signal. STOP is driven by a PCI target to request the initiator to stop the current PCI bus transaction. STOP that do not support burst data transfers.
PCI target ready. TRDY indicates the primary bus target’s ability to complete the current data phase of the transaction. A data phase is completed on a rising edge of PCLK when both IRDY are asserted. Until both IRDY and TRDY are asserted, wait states are inserted.
is enabled through bit 6 of the command register.
is enabled in the control register, this signal also pulses,
is used for target disconnects and is commonly asserted by target devices
until a target responds. If no target responds
may or may not follow a PCI bus request,
and TRDY
and TRDY
14
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Terminal Functions (Continued)
NAME
TYPE
multifunction and miscellaneous terminals
TERMINAL
NUMBER
PDV GHK
MFUNC0 154 F15 I/O
MFUNC1 155 E17 I/O
MFUNC2 157 A16 I/O
MFUNC3 158 C15 I/O
I/O
Multifunction terminal 0. MFUNC0 can be configured as parallel PCI interrupt INTA, GPI0, GPO0, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE parallel IRQ. See the details.
Multifunction terminal 1. MFUNC1 can be configured as parallel PCI interrupt INTB, GPI1, GPO1, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE parallel IRQ. See the details.
Serial data (SDA). When the serial bus mode is implemented by pulling the LATCH terminal low, the MFUNC1 terminal provides the SDA signaling. The two-terminal serial interface is used to load the subsystem identification and other register defaults from an EEPROM after a PCI reset. See the other serial bus applications.
Multifunction terminal 2. MFUNC2 can be configured as PC/PCI DMA request, GPI2, GPO2, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE
multifunction routing register
See the Multifunction terminal 3. MFUNC3 can be configured as a parallel IRQ or the serialized
interrupt signal IRQSER. See the configuration details.
Multifunction terminal 4. MFUNC4 can be configured as PCI LOCK, GPI3, GPO3, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE
multifunction routing register
the
SCPS035B – MA Y 1998 – REVISED – MAY 2000
FUNCTION
multifunction routing register
multifunction routing register
serial bus interface implementation
description on page 64 for configuration details.
multifunction routing register
description on page 64 for configuration details.
description on page 64 for configuration
description on page 64 for configuration
PCI1225 GHK/PDV
PC CARD CONTROLLERS
, or a
, or a
description on page 31 for details on
, or a parallel IRQ.
description on page 64 for
, or a parallel IRQ. See
MFUNC4 159 E14 I/O
MFUNC5 160 F13 I/O
MFUNC6 161 B15 I/O
RI_OUT/PME 163 C14 O
SPKROUT
SUSPEND 156 D19 I
149 G15 O
Serial clock (SCL). When the serial bus mode is implemented by pulling the LATCH terminal low, the MFUNC4 terminal provides the SCL signaling. The two-terminal serial interface is used to load the subsystem identification and other register defaults from an EEPROM after a PCI reset. See the other serial bus applications.
Multifunction terminal 5. MFUNC5 can be configured as PC/PCI DMA grant GPI4, GPO4, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE
multifunction routing register
See the Multifunction terminal 6. MFUNC6 can be configured as a PCI CLKRUN or a parallel IRQ. See
multifunction routing register
the Ring indicate out and power management event output. Terminal provides an output for
ring-indicate or PME Speaker output. SPKROUT is the output to the host system that can carry SPKR or CAUDIO
through the PCI1225 from the PC Card interface. SPKROUT is driven as the exclusive-OR combination of card SPKR
Suspend. SUSPEND is used to protect the internal registers from clearing when the PRST signal is asserted. See
serial bus interface implementation
description on page 64 for configuration details.
description on page 64 for configuration details.
signals.
//CAUDIO inputs.
suspend mode
description on page 42 for details.
description on page 31 for details on
, or a parallel IRQ.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
15
PCI1225 GHK/PDV
I/O
NAME
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
16-bit PC Card address and data (slots A and B)
TERMINAL
NUMBER †
NAME
A25 A24 A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Terminal name for slot A is preceded with A_. For example, the full name for terminals 121 and M18 is A_A25.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 55 and R6 is B_A25.
SLOT A
PDV
121
118 116 114
111 109 107 105 103
112
115 108 106
117 100
95 102 104
119 123 125 126 128 131 132 133
93 91 89 87
84 147 145 142
92
90
88
85
83 146 144 141
GHK
M18 N19 N17
P19 P17
R18
P15 T19
U15
P18 M14 N14 R17 N18
P14
W14
R14
W16
M15
L19
L17
L15
K19
K15
K14
J19 U13
W13
P12
V12
P11
F19 G17 H15
V13 R12 U12
R11
U11 G14 G18 H14
SLOT B
PDV
55 53 51 49 47 45 42 40 37 48 50 43 41 52 34 29 36 39 54 57 59 60 62 65 66 67
27 25 23 20 18 81 79 77 26 24 21 19 17 80 78 76
GHK
R6
W4
R3 R2 R1 N5 N6 N2 M6
N3
M1
M3 N1 U5
U6
W6
W7
R8
H1
W11
R10 V10
H2 P10 U10
W10
I/O
TYPE
P6 P5 P1
T1
L1
V5
V6
V7
K5 K2 J6 J2
K3 K1 J3 J1
O PC Card address. 16-bit PC Card address lines. A25 is the most-significant bit.
I/O PC Card data. 16-bit PC Card data lines. D15 is the most-significant bit.
FUNCTION
16
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PC CARD CONTROLLERS
I/O
NAME
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
16-bit PC Card interface control (slots A and B)
TERMINAL
NUMBER †
NAME
BVD1 (STSCHG
BVD2 (SPKR
)
CD1 CD2
CE1 CE2
INPACK 127 L14 61 R7 I
IORD
IOWR
OE 98 U14 32 L6 O
Terminal name for slot A is preceded with A_. For example, the full name for terminals 127 and L14 is A_INPACK.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 61 and R7 is B_INPACK
SLOT A
PDV GHK PDV GHK
138 H19 72 V9 I
/RI)
137 J15 71 W9 I
82
V11
140
H171674H3R9
9497P13
R132830
99 W15 33 L5 O
101 V15 35 M2 O
SLOT B
K6 L2
I/O
TYPE
Battery voltage detect 1. BVD1 is generated by 16-bit memory PC Cards that include batteries. BVD1 is used with BVD2 as an indication of the condition of the batteries on a memory PC Card. Both BVD1 and BVD2 are kept high when the battery is good. When BVD2 is low and BVD1 is high, the battery is weak and should be replaced. When BVD1 is low, the battery is no longer serviceable and the data in the memory PC Card is lost. See
configuration register
bits for this signal. Status change. STSCHG
write protect, or battery voltage detect condition of a 16-bit I/O PC Card. Ring indicate. RI
Battery voltage detect 2. BVD2 is generated by 16-bit memory PC Cards that include batteries. BVD2 is used with BVD1 as an indication of the condition of the batteries on a memory PC Card. Both BVD1 and BVD2 are high when the battery is good. When BVD2 is low and BVD1 is high, the battery is weak and should be replaced. When BVD1 is low, the battery is no longer serviceable and the data in the memory PC Card is lost. See
register
91
and the
signal. Speaker. SPKR
socket have been configured for the 16-bit I/O interface. The audio signals from cards A and B are combined by the PCI1225 and are output on SPKROUT.
DMA request. BVD2 can be used as the DMA request signal during DMA operations to a 16-bit PC Card that supports DMA. The PC Card asserts BVD2 to indicate a request for a DMA operation.
PC Card detect 1 and PC Card detect 2. CD1 and CD2 are internally connected to ground on the PC Card. When a PC Card is inserted into a socket, CD1
I
are pulled low. For signal status, see Card enable 1 and card enable 2. CE1 and CE2 enable even- and odd-numbered
address bytes. CE1
O
odd-numbered address bytes. Input acknowledge. INP ACK is asserted by the PC Card when it can respond to an
I/O read cycle at the current address. DMA request. INPACK
operations from a 16-bit PC Card that supports DMA. If used as a strobe, the PC Card asserts this signal to indicate a request for a DMA operation.
I/O read. IORD is asserted by the PCI1225 to enable 16-bit I/O PC Card data output during host I/O read cycles.
DMA write. IORD 16-bit PC Card that supports DMA. The PCI1225 asserts IORD transfers from the PC Card to host memory.
I/O write. IOWR is driven low by the PCI1225 to strobe write data into 16-bit I/O PC Cards during host I/O write cycles.
DMA read. IOWR 16-bit PC Card that supports DMA. The PCI1225 asserts IOWR from host memory to the PC Card.
Output enable. OE is driven low by the PCI1225 to enable 16-bit memory PC Card data output during host memory read cycles.
DMA terminal count. OE a 16-bit PC Card that supports DMA. The PCI1225 asserts OE a DMA write operation.
register
on page 91 and the
on page 92 for enable bits. See
on page 92 for enable bits. See
is used to alert the system to a change in the READY,
is used by 16-bit modem cards to indicate a ring detection.
ExCA interface status register
is an optional binary audio signal available only when the card and
enables even-numbered address bytes, and CE2 enables
can be used as the DMA request signal during DMA
is used as the DMA write strobe during DMA operations from a
is used as the DMA write strobe during DMA operations from a
is used as terminal count (TC) during DMA operations to
FUNCTION
ExCA card status-change interrupt
ExCA interface status register
ExCA card status-change interrupt configuration
ExCA card status-change register
on page 88 for the status bits for this
interface status register
PCI1225 GHK/PDV
ExCA card status-change
on page 88 for the status
on page
and CD2
on page 88.
during DMA
during transfers
to indicate TC for
.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
17
PCI1225 GHK/PDV
I/O
NAME
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
16-bit PC Card interface control (slots A and B) (continued)
TERMINAL
NUMBER †
NAME
READY (IREQ
)
REG
RESET 124 L18 58 W5 O PC Card reset. RESET forces a hard reset to a 16-bit PC Card. VS1
VS2 WAIT
WE 110 R19 46 P3 O
WP (IOIS16
)
Terminal name for slot A is preceded with A_. For example, the full name for terminals 110 and R19 is A_WE.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 46 and P3 is B_WE
SLOT A
PDV GHK PDV GHK
135 J17 69 V8 I
130 K17 63 P8 O
134
J18
122
M196856
136 J14 70 W8 I
139 H18 73 U9 I
SLOT B
U8 P7
I/O
TYPE
Ready. The ready function is provided by READY when the 16-bit PC Card and the host socket are configured for the memory-only interface. READY is driven low by the 16-bit memory PC Cards to indicate that the memory card circuits are busy processing a previous write command. READY is driven high when the 16-bit memory PC Card is ready to accept a new data transfer command.
Interrupt request. IREQ that a device on the 16-bit I/O PC Card requires service by the host software. IREQ is high (deasserted) when no interrupt is requested.
Attribute memory select. REG remains high for all common memory accesses. When REG to the I/O space (IORD section of card memory and is generally used to record card capacity and other configuration and attribute information.
DMA acknowledge. REG operations to a 16-bit PC Card that supports DMA. The PCI1225 asserts REG indicate a DMA operation. REG or DMA write (IORD
Voltage sense 1 and voltage sense 2. VS1 and VS2, when used in conjunction with
I/O
each other, determine the operating voltage of the 16-bit PC Card. Bus cycle wait. WAIT is driven by a 16-bit PC Card to delay the completion of (i.e.,
extend) the memory or I/O cycle in progress. Write enable. WE is used to strobe memory write data into 16-bit memory PC Cards.
WE is also used for memory PC Cards that employ programmable memory technologies.
DMA terminal count. WE that supports DMA. The PCI1225 asserts WE to indicate TC for a DMA read operation.
Write protect. WP applies to 16-bit memory PC Cards. WP reflects the status of the write-protect switch on 16-bit memory PC Cards. For 16-bit I/O cards, WP is used for the 16-bit port (IOIS16) function.
I/O is 16 bits. IOIS16 PC Card when the address on the bus corresponds to an address to which the 16-bit PC Card responds, and the I/O port that is addressed is capable of 16-bit accesses.
DMA request. WP can be used as the DMA request signal during DMA operations to a 16-bit PC Card that supports DMA. If used, the PC Card asserts WP to indicate a request for a DMA operation.
is asserted, access is limited to attribute memory (OE or WE active) and
is asserted by a 16-bit I/O PC Card to indicate to the host
or IOWR active). Attribute memory is a separately accessed
is used as a DMA acknowledge (DACK) during DMA
) strobes to transfer data.
is used as TC during DMA operations to a 16-bit PC Card
applies to 16-bit I/O PC Cards. IOIS16 is asserted by the 16-bit
FUNCTION
is used in conjunction with the DMA read (IOWR)
.
to
18
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PC CARD CONTROLLERS
I/O
NAME
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
CardBus PC Card interface system (slots A and B)
TERMINAL
NUMBER †
NAME
CCLK 112 P18 48 P6 O
CCLKRUN
CRST
Terminal name for slot A is preceded with A_. For example, the full name for terminals 112 and P18 is A_CCLK.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 48 and P6 is B_CCLK.
SLOT A
PDV GHK PDV GHK
139 H18 73 U9 O
124 L18 58 W5 I/O
SLOT B
I/O
TYPE
CardBus PC Card clock. CCLK provides synchronous timing for all transactions on the CardBus interface. All signals except CRST CAUDIO, CCD2 and all timing parameters are defined with the rising edge of this signal. CCLK operates at the PCI bus clock frequency, but it can be stopped in the low state or slowed down for power savings.
CardBus PC Card clock run. CCLKRUN is used by a CardBus PC Card to request an increase in the CCLK frequency, and by the PCI1225 to indicate that the CCLK frequency is going to be decreased.
CardBus PC Card reset. CRST is used to bring CardBus PC Card-specific registers, sequencers, and signals to a known state. When CRST Card signals must be 3-stated, and the PCI1225 drives these signals to a valid logic level. Assertion can be asynchronous to CCLK, but deassertion must be synchronous to CCLK.
, CCD1, CVS2, and CVS1 are sampled on the rising edge of CCLK,
FUNCTION
PCI1225 GHK/PDV
, CCLKRUN, CINT, CSTSCHG,
is asserted, all CardBus PC
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
19
PCI1225 GHK/PDV
I/O
NAME
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
CardBus PC Card address and data (slots A and B)
TERMINAL
PIN NUMBER
NAME
CAD31 CAD30 CAD29 CAD28 CAD27 CAD26 CAD25 CAD24 CAD23 CAD22 CAD21 CAD20 CAD19 CAD18 CAD17 CAD16 CAD15 CAD14 CAD13 CAD12 CAD11 CAD10 CAD9 CAD8 CAD7 CAD6 CAD5 CAD4 CAD3 CAD2 CAD1 CAD0
CC/BE3 CC/BE2 CC/BE1 CC/BE0
CPAR 106 R17 41 N3 I/O
Terminal name for slot A is preceded with A_. For example, the full name for terminals 106 and R17 is A_CPAR.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 41 and N3 is B_CPAR.
SLOT A
PDV GHK PDV GHK
147 145 144 142 141 133 132 131 128 126 125 123 121
103 101 102
100
130
104
119 118
99
98 97 95 93 92 89 90 87 88 84 85 83
117
94
F19 G17 G18 H15 H14
J19
K14
K15
K19
L15
L17
L19 M18 M15 N19 U15
V15 R14 W15
P14 U14 R13 W14 U13
V13
P12 R12
V12 U12
P11
R11
U11
K17 N18 W16
P13
SLOT B
81 79 78 77 76 67 66 65 62 60 59 57 55 54 53 37 35 36 33 34 32 30 29 27 26 23 24 20 21 18 19 17
63 52 39 28
W11
R10 U10 V10
W10
W7
W6
W4 M6 M2 M3
M1
R8
V7
V6 U6 V5 R6 U5
L5
L6 L2
L1 K5 K3
J6 K1
J2
J3 H1
J1 H2
P8
T1 N1 K6
I/O
TYPE
PC Card address and data. These signals make up the multiplexed CardBus address and data bus on the CardBus interface. During the address phase of a CardBus cycle,
I/O
CAD31–CAD0 contain a 32-bit address. During the data phase of a CardBus cycle, CAD31–CAD0 contain data. CAD31 is the most-significant bit.
CardBus bus commands and byte enables. CC/BE3–CC/BE0 are multiplexed on the same CardBus terminals. During the address phase of a CardBus cycle,
–CC/BE0 defines the bus command. During the data phase, this 4-bit bus is
CC/BE3 used as byte enables. The byte enables determine which byte paths of the full 32-bit data
I/O
bus carry meaningful data. CC/BE0 to byte 1 (CAD15–CAD8), CC/BE2 applies to byte 3 (CAD31–CAD24).
CardBus parity. In all CardBus read and write cycles, the PCI1225 calculates even parity across the CAD and CC/BE outputs CPAR with a one-CCLK delay . As a target during CardBus cycles, the calculated parity is compared to the initiator parity indicator; a compare error results in a parity error assertion.
buses. As an initiator during CardBus cycles, the PCI1225
FUNCTION
applies to byte 0 (CAD7–CAD0), CC/BE1 applies
applies to byte 2 (CAD23–CAD8), and CC/BE3
20
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PC CARD CONTROLLERS
I/O
NAME
CCD1
82
V11
H3
CVS1
134
J18
U8
SCPS035B – MA Y 1998 – REVISED – MAY 2000
Terminal Functions (Continued)
CardBus PC Card interface control (slots A and B)
TERMINAL
PIN NUMBER
NAME
CAUDIO 137 J15 71 W9 I
CBLOCK
CCD1 CCD2
CDEVSEL
CFRAME
CGNT
CINT
CIRDY
CPERR
CREQ
CSERR
CSTOP
CSTSCHG
CTRDY
CVS1 134 J18 68 U8 CVS2
Terminal name for slot A is preceded with A_. For example, the full name for terminals 137 and J15 is A_CAUDIO.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 71 and W9 is B_CAUDIO.
SLOT A
PDV GHK PDV GHK
107 P15 42 N6 I/O
82 V11 16 H3
140
H171674
111 P17 47 R1 I/O
116 N17 51 R3 I/O
110 R19 46 P3 I
135 J17 69 V8 I
115 M14 50 P5 I/O
108 N14 43 P1 I/O
127 L14 61 R7 I
136 J14 70 W8 I
109 R18 45 N5 I/O
138 H19 72 V9 I
114 P19 49 R2 I/O
122
M196856
SLOT B
R9
P7
I/O
TYPE
CardBus audio. CAUDIO is a digital input signal from a PC Card to the system speaker. The PCI1225 supports the binary audio mode and outputs a binary signal from the card to SPKROUT.
CardBus lock. CBLOCK is used to gain exclusive access to a target. CardBus detect 1 and CardBus detect 2. CCD1 and CCD2 are used in conjunction
I
with CVS1 and CVS2 to identify card insertion and interrogate cards to determine the operating voltage and card type.
CardBus device select. The PCI1225 asserts CDEVSEL to claim a CardBus cycle as the target device. As a CardBus initiator on the bus, the PCI1225 monitors CDEVSEL until a target responds. If no target responds before timeout occurs, the PCI1225 terminates the cycle with an initiator abort.
CardBus cycle frame. CFRAME is driven by the initiator of a CardBus bus cycle. CFRAME transfers continue while this signal is asserted. When CFRAME CardBus bus transaction is in the final data phase.
CardBus bus grant. CGNT is driven by the PCI1225 to grant a CardBus PC Card access to the CardBus bus after the current data transaction has been completed.
CardBus interrupt. CINT is asserted low by a CardBus PC Card to request interrupt servicing from the host.
CardBus initiator ready. CIRDY indicates the ability of the CardBus initiator to complete the current data phase of the transaction. A data phase is completed on a rising edge of CCLK when both CIRDY CTRDY are both sampled asserted, wait states are inserted.
CardBus parity error. CPERR is used to report parity errors during CardBus transactions, except during special cycles. It is driven low by a target two clocks following that data when a parity error is detected.
CardBus request. CREQ indicates to the arbiter that the CardBus PC Card desires use of the CardBus bus as an initiator.
CardBus system error. CSERR reports address parity errors and other system errors that could lead to catastrophic results. CSERR CCLK, but deasserted by a weak pullup, and may take several CCLK periods. The PCI1225 can report CSERR
CardBus stop. CSTOP is driven by a CardBus target to request the initiator to stop the current CardBus transaction. CSTOP commonly asserted by target devices that do not support burst data transfers.
CardBus status change. CSTSCHG is used to alert the system to a change in the card status, and is used as a wake-up mechanism.
CardBus target ready. CTRDY indicates the ability of the CardBus target to complete the current data phase of the transaction. A data phase is completed on a rising edge of CCLK, when both CIRDY inserted.
CardBus voltage sense 1 and CardBus voltage sense 2. CVS1 and CVS2 are used
I/O
in conjunction with CCD1 and CCD2 to identify card insertion and interrogate cards to determine the operating voltage and card type.
is asserted to indicate that a bus transaction is beginning, and data
FUNCTION
and CTRDY are asserted. Until CIRDY and
is driven by the card synchronous to
to the system by assertion of SERR on the PCI interface.
is used for target disconnects, and is
and CTRDY are asserted; until this time, wait states are
PCI1225 GHK/PDV
is deasserted, the
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
21
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
power supply sequencing
The PCI1225 contains 3.3-V I/O buffers with 5-V tolerance requiring a core power supply and clamp power supplies. The core power supply is always 3.3 V . The clamp power supplies can be either 3.3 V or 5 V , depending on the interface. The following power-up and power-down sequences are recommended.
The power-up sequence is:
1. Apply 3.3-V power to the core.
2. Assert PRST
to the device to disable the outputs during power up. Output drivers must be powered up in
the high-impedance state to prevent high current levels through the clamp diodes to the 5-V supply.
3. Apply the clamp power. The power-down sequence is:
1. Use PRST
to switch outputs to a high-impedance state.
2. Remove the clamp power.
3. Remove the 3.3-V power from the core.
I/O characteristics
Figure 1 shows a 3-state bidirectional buffer. The provides the electrical characteristics of the inputs and outputs.
NOTE:
The PCI1225 meets the ac specifications of the 1997 PC Card Standard and PCI Local Bus Specification Rev. 2.2.
Tied for Open Drain
OE
recommended operating conditions
V
CCP
Pad
table, on page 120,
Figure 1. 3-State Bidirectional Buffer
NOTE:
Unused pins (input or I/O) must be held high or low to prevent them from floating.
clamping rail voltages
The clamping rail voltages are set to match whatever external environment the PCI1225 will be working with:
3.3 V or 5 V. The I/O sites can be pulled through a clamping diode to a power rail that protects the core from external signals. The core power supply is always 3.3 V and is independent of the clamping rail voltages. For example, PCI signaling can be either 3.3 V or 5 V, and the PCI1225 must reliably accommodate both voltage levels. This is accomplished by using a 3.3-V I/O buffer that is 5-V tolerant, with the applicable clamping rail voltage applied. If a system designer desires a 5-V PCI bus, V
The PCI1225 requires four separate clamping rails because it supports a wide range of features. The four rails are listed and defined in the
22
recommended operating conditions
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
can be connected to a 5-V power supply.
CCP
, on page 120.
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
peripheral component interconnect (PCI) interface
The PCI1225 is fully compliant with the PCI Local Bus Specification Rev. 2.2. The PCI1225 provides all required signals for PCI master or slave operation, and may operate in either a 5-V or 3.3-V signaling environment by connecting the V PCI1225 provides the optional interrupt signals INTA
PCI bus lock (LOCK)
The bus-locking protocol defined in the PCI specification is not highly recommended, but is provided on the PCI1225 as an additional compatibility feature. The PCI LOCK via the multifunction routing register; see the Note that the use of LOCK is only supported by PCI-to-CardBus bridges in the downstream direction (away from the processor).
PCI LOCK indicates an atomic operation that may require multiple transactions to complete. When LOCK is asserted, nonexclusive transactions can proceed to an address that is not currently locked. A grant to start a transaction on the PCI bus does not guarantee control of LOCK; control of LOCK is obtained under its own protocol. It is possible for different initiators to use the PCI bus while a single master retains ownership of LOCK. Note that the CardBus signal for this protocol is CBLOCK
An agent may need to do an exclusive operation because a critical access to memory might be broken into several transactions, but the master wants exclusive rights to a region of memory. The granularity of the lock is defined by PCI to be 16 bytes, aligned. The lock protocol defined by PCI allows a resource lock without interfering with nonexclusive real-time data transfer, such as video.
terminals to the desired voltage level. In addition to the mandatory PCI signals, the
CCP
and INTB.
signal can be routed to the MFUNC4 terminal
multifunction routing register
description on page 64 for details.
to avoid confusion with the bus clock.
The PCI bus arbiter may be designed to support only complete bus locks using the LOCK scenario, the arbiter will not grant the bus to any other agent (other than the LOCK
master) while LOCK is
protocol. In this
asserted. A complete bus lock may have a significant impact on the performance of the video. The arbiter that supports complete bus lock must grant the bus to the cache to perform a writeback due to a snoop to a modified line when a locked operation is in progress.
The PCI1225 supports all LOCK protocols associated with PCI-to-PCI bridges, as also defined for PCI-to-CardBus bridges. This includes disabling write posting while a locked operation is in progress, which can solve a potential deadlock when using devices such as PCI-to-PCI bridges. The potential deadlock can occur if a CardBus target supports delayed transactions and blocks access to the target until it completes a delayed read. This target characteristic is prohibited by the 2.2 PCI specification, and the issue is resolved by the PCI master using LOCK
.
loading subsystem identification
The subsystem vendor ID register and subsystem ID register make up a doubleword of PCI configuration space located at offset 40h for functions 0 and 1. This doubleword register is used for system and option card (mobile dock) identification purposes and is required by some operating systems. Implementation of this unique identifier register is a PC 95 requirement.
The PCI1225 offers two mechanisms to load a read-only value into the subsystem registers. The first mechanism relies upon the system BIOS providing the subsystem ID value. The default access mode to the subsystem registers is read-only, but can be made read/write by setting the SUBSYSRW bit in the system control register (bit 5, at PCI offset 80h). Once this bit is set, the BIOS can write a subsystem identification value into the registers at offset 40h. The BIOS must clear the SUBSYSRW bit such that the subsystem vendor ID register and subsystem ID register is limited to read-only access. This approach saves the added cost of implementing the serial electrically erasable programmable ROM (EEPROM).
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
23
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
loading subsystem identification (continued)
In some conditions, such as in a docking environment, the subsystem vendor ID register and subsystem ID register must be loaded with a unique identifier via a serial EEPROM. The PCI1225 loads the data from the serial EEPROM after a reset of the primary bus. Note that the SUSPEND input gates the PCI reset from the entire PCI1225 core, including the serial bus state machine (see SUSPEND).
The PCI1225 provides a two-line serial bus host controller that can be used to interface to a serial EEPROM. See
serial bus interface
on page 31 for details on the two-wire serial bus controller and applications.
PC Card applications
This section describes the PC Card interfaces of the PCI1225:
Card insertion/removal and recognition
2
P
C power-switch interface
Zoom video support Speaker and audio applications LED socket activity indicators 16-bit PC Card DMA support CardBus socket registers
suspend mode
, on page 42, for details on using
PC Card insertion/removal and recognition
The 1997 PC Card Standard addresses the card-detection and recognition process through an interrogation procedure that the socket must initiate on card insertion into a cold, nonpowered socket. Through this interrogation, card voltage requirements and interface (16 bit versus CardBus) are determined.
The scheme uses the CD1, CD2, VS1, and VS2 signals (CCD1, CCD2, CVS1, and CVS2 for CardBus). The configuration of these four terminals identifies the card type and voltage requirements of the PC Card interface. The encoding scheme is defined in the 1997 PC Card Standard and in Table 5.
Table 5. PC Card Card-Detect and Voltage-Sense Connections
CD2//CCD2 CD1//CCD1 VS2//CVS2 VS1//CVS1 KEY INTERFACE VOLTAGE
Ground Ground Open Open 5 V 16-bit PC Card 5 V Ground Ground Open Ground 5 V 16-bit PC Card 5 V and 3.3 V Ground Ground Ground Ground 5 V 16-bit PC Card 5 V, 3.3 V, and X.X V Ground Ground Open Ground LV 16-bit PC Card 3.3 V Ground Connect to CVS1 Open Connect to CCD1 LV CardBus PC Card 3.3 V
Ground Ground Ground Ground LV 16-bit PC Card 3.3 V and X.X V Connect to CVS2 Ground Connect to CCD2 Ground LV CardBus PC Card 3.3 V and X.X V Connect to CVS1 Ground Ground Connect to CCD2 LV CardBus PC Card 3.3 V, X.X V, and Y.Y V
Ground Ground Ground Open LV 16-bit PC Card Y.Y V Connect to CVS2 Ground Connect to CCD2 Open LV CardBus PC Card Y.Y V
Ground Connect to CVS2 Connect to CCD1 Open LV CardBus PC Card X.X V and Y.Y V Connect to CVS1 Ground Open Connect to CCD2 LV CardBus PC Card Y.Y V
Ground Connect to CVS1 Ground Connect to CCD1 Reserved
Ground Connect to CVS2 Connect to CCD1 Ground Reserved
24
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
P2C power-switch interface (TPS2202A/2206)
2
The PCI1225 provides a P The CLOCK, DATA, and LATCH terminals interface with the TI TPS2202A/2206 dual-slot PC Card power interface switches to provide power switch support. Figure 2 shows the terminal assignments of the TPS2206, and Figure 3 illustrates a typical application where the PCI1225 represents the PCMCIA controller.
C (PCMCIA peripheral control) interface for control of the PC Card power switch.
5 V 5 V
DATA
CLOCK
LATCH
RESET
12 V A VPP A VCC A VCC A VCC
GND
NC
RESET
3.3 V
NC – No internal connection
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
5 V NC NC NC NC NC 12 V BVPP BVCC BVCC BVCC NC OC
3.3 V
3.3 V
Figure 2. TPS2206 Terminal Assignments
The CLOCK terminal on the PCI1225 can be an input or an output. The PCI1225 defaults the CLOCK terminal as an input to control the serial interface and the internal state machine. The P2CCLK bit in the system control register can be set by the platform BIOS to enable the PCI1225 to generate and drive the CLOCK internally from the PCI clock. When the system design implements CLOCK as an output from the PCI1225, an external pulldown is required.
Power Supply
12 V
5 V
3.3 V
Supervisor
PCI1225
(PCMCIA
Controller)
TPS2206
12 V 5 V
3.3 V
RESET RESET
CLOCK DATA LATCH
AVPP
AVCC AVCC AVCC
BVPP
BVCC BVCC BVCC
V V V V
V V V V
PP1 PP2 CC CC
PP1 PP2 CC CC
Figure 3. TPS2206 Typical Application
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PC Card
A
PC Card
B
25
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
zoom video support
The PCI1225 allows for the implementation of zoom video for PC Cards. Zoom video is supported by setting the ZVENABLE bit in the card control register on a per-socket-function basis. Setting this bit puts 16-bit PC Card address lines A25–A4 of the PC Card interface in the high-impedance state. These lines can then be used to transfer video and audio data directly to the appropriate controller. Card address lines A3–A0 can still be used to access PC Card CIS registers for PC Card configuration. Figure 4 illustrates a PCI1225 ZV implementation.
Audio
Codec
PCM Audio Input
Speakers
PC Card
19
PC Card
Interface
Video
Audio
4
CRT
Motherboard
PCI Bus
VGA
Controller
Zoom Video
Port
19 4
PCI1225
Figure 4. Zoom Video Implementation Using PCI1225
Not shown in Figure 4 is the multiplexing scheme used to route either socket 0 or socket 1 ZV source to the graphics controller. The PCI1225 provides ZVSTAT, ZVSEL0, and ZVSEL1 signals on the multifunction terminals to switch external bus drivers. Figure 5 shows an implementation for switching between three ZV streams using external logic.
26
2
PCI1225
ZVSTAT ZVSEL0 ZVSEL1
0 1
Figure 5. Zoom Video Switching Application
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PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
zoom video support (continued)
Figure 5 illustrates an implementation using standard three-state bus drivers with active-low output enables. ZVSEL0 output indicating that socket 1 ZV is enabled. When both sockets have ZV mode enabled, the PCI1225 defaults to indicating socket 0 enabled through ZVSEL0 software to select the socket ZV source priority. Table 6 illustrates the functionality of the ZV output signals.
Also shown in Figure 5 is a third ZV source that may be provided from a source such as a high-speed serial bus like IEEE 1394. The ZVSTAT signal provides a mechanism to switch the third ZV source. ZVSTAT is an active-high output indicating that one of the PCI1225 sockets is enabled for ZV mode. The implementation shown in Figure 5 can be used if PC Card ZV is prioritized over other sources.
is an active-low output indicating that the socket 0 ZV mode is enabled, and ZVSEL1 is an active-low
; however, the POR TSEL bit in the card control register allows
Table 6. PC Card Card-Detect and Voltage-Sense Connections
INPUTS OUTPUTS
PORTSEL SOCKET 0 ENABLE SOCKET 1 ENABLE ZVSEL0 ZVSEL1 ZVSTAT
X 0 0 1 1 0 0 1 X 0 1 1 0 0 1 1 0 1 1 X 1 1 0 1 1 1 0 0 1 1
SPKROUT and CAUDPWM usage
SPKROUT carries the digital audio signal from the PC Card to the system. When a 16-bit PC Card is configured for I/O mode, the BVD2 terminal becomes SPKR
. This terminal is also used in CardBus binary audio applications, and is referred to as CAUDIO. SPKR passes a TTL level digital audio signal to the PCI1225. The CardBus CAUDIO signal also can pass a single-amplitude binary waveform. The binary audio signals from the two PC Card sockets are XORed in the PCI1225 to produce SPKROUT. This output is enabled by the SPKROUTEN bit in the card control register.
Older controllers support CAUDIO in binary or PWM mode but use the same terminal (SPKROUT). Some audio chips may not support both modes on one terminal and may have a separate terminal for binary and PWM. The PCI1225 implementation includes a signal for PWM, CAUDPWM, which can be routed to a MFUNC terminal. The AUD2MUX bit located in the card control register is programmed on a per-socket-function basis to route a CardBus CAUDIO PWM terminal to CAUDPWM. If both CardBus functions enable CAUDIO PWM routing to CAUDPWM, then socket 0 audio takes precedence. See the
multifunction routing register
description on page
64 for details on configuring the MFUNC terminals. Figure 6 provides an illustration of a sample application using SPKROUT and CAUDPWM.
System
Core Logic
BINARY_SPKR
Speaker
Subsystem
PWM_SPKR
PCI1225
SPKROUT
CAUDPWM
Figure 6. Sample Application of SPKROUT and CAUDPWM
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PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
LED socket activity indicators
The socket activity LEDs are provided to indicate when a PC Card is being accessed. The LEDA1 and LEDA2 signals can be routed to the multifunction terminals. When configured for LED outputs, these terminals output an active high signal to indicate socket activity. LEDA1 indicates socket 0 (card A) activity, and LEDA2 indicates socket 1 (card B) activity. The LED_SKT output indicates socket activity to either socket 0 or socket 1. See the
multifunction routing register
The LED signal is active high and is driven for 64-ms durations. When the LED is not being driven high, it is driven to a low state. Either of the two circuits shown in Figure 7 can be implemented to provide LED signaling, and it is left for the board designer to implement the circuit that best fits the application.
The LED activity signals are valid when a card is inserted, powered, and not in reset. For a 16-bit PC Card, the LED activity signals are pulsed when READY/IREQ is low. For CardBus cards, the LED activity signals are pulsed if CFRAME, IRDY, or CREQ is active.
description on page 64 for details on configuring the multifunction terminals.
Current Limiting
R 500
PCI1225
PCI1225
Application-
Specific Delay
Current Limiting
R 500
LED
LED
Figure 7. T wo Sample LED Circuits
As indicated, the LED signals are driven for a period of 64 ms by a counter circuit. To avoid the possibility of the LEDs appearing to be stuck when the PCI clock is stopped, the LED signaling is cut-off when the SUSPEND signal is asserted, when the PCI clock is to be stopped during the clock run protocol, or when in the D2 or D1 power state.
If any additional socket activity occurs during this counter cycle, the counter is reset and the LED signal remains driven. If socket activity is frequent (at least once every 64 ms), the LED signals remain driven.
16-bit PC Card Distributed DMA support
The PCI1225 supports a distributed DMA slave engine for 16-bit PC Card DMA support. The distributed DMA (DDMA) slave register set provides the programmability necessary for the slave DDMA engine. The DDMA register configuration is provided in Table 7.
Two socket function dependent PCI configuration header registers that are critical for DDMA are the socket DMA register 0 and the socket DMA register 1. Distributed DMA is enabled through socket DMA register 0 and the contents of this register configure the 16-bit PC Card terminal (SPKR
, IOIS16, or INPACK) which is used for the DMA request signal, DREQ. The base address of the DDMA slave registers and the transfer size (bytes or words) are programmed through the socket DMA register 1. See the programming model and register descriptions for details.
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PCI1225 GHK/PDV
PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
16-bit PC Card distributed DMA support (continued)
Table 7. Distributed DMA Registers
TYPE REGISTER NAME
R W R W R N/A W Mode R Multichannel W Mask
Reserved Page
Reserved Reserved
Reserved
Reserved
Request Command
Master clear
Current address 00h
Base address Current count 04h
Base count
N/A Status 08h
N/A
Reserved
The DDMA registers contain control and status information consistent with the 8237 DMA controller; however, the register locations are reordered and expanded in some cases. While the DDMA register definitions are identical to those in the 8237 DMA controller of the same name, some register bits defined in the 8237 DMA controller do not apply to distributed DMA in a PCI environment. In such cases, the PCI1225 implements these obsolete register bits as read-only , nonfunctional bits. The reserved registers shown in T able 7 are implemented as read-only and return zeros when read. Write transactions to reserved registers have no effect.
BASE ADDRESS
OFFSET
DMA
0Ch
The DDMA transfer is prefaced by several configuration steps that are specific to the PC Card and must be completed after the PC Card is inserted and interrogated. These steps include setting the proper DREQ
signal assignment, setting the data transfer width, and mapping and enabling the DDMA register set. As discussed above, this is done through socket DMA register 0 and socket DMA register 1. The DMA register set is then programmed similarly to an 8237 controller, and the PCI1225 awaits a DREQ assertion from the PC Card requesting a DMA transfer.
DMA writes transfer data from the PC Card to PCI memory addresses. The PCI1225 accepts data 8 or 16 bits at a time, depending on the programmed data width, and then requests access to the PCI bus by asserting its REQ signal. Once the PCI bus is granted in an idle state, the PCI1225 initiates a PCI memory write command to the current memory address and transfers the data in a single data phase. After terminating the PCI cycle, the PCI1225 accepts the next byte(s) from the PC Card until the transfer count expires.
DMA reads transfer data from PCI memory addresses to the PC Card application. Upon the assertion of DREQ the PCI1225 asserts REQ to acquire the PCI bus. Once the bus is granted in an idle state, the PCI1225 initiates a PCI memory read operation to the current memory address and accepts 8 or 16 bits of data, depending on the programmed data width. After terminating the PCI cycle, the data is passed onto the PC Card. After terminating the PC Card cycle, the PCI1225 requests access to the PCI bus again until the transfer count has expired.
The PCI1225 target interface acts normally during this procedure and accepts I/O reads and writes to the DDMA registers. While a DDMA transfer is in progress and the host resets the DMA channel, the PCI1225 asserts TC and ends the PC Card cycle(s). TC is indicated in the DDMA status register. At the PC Card interface, the PCI1225 supports demand mode transfers. The PCI1225 asserts DACK during the transfer unless DREQ
is deasserted before TC. TC is mapped to the OE PC Card terminal for DMA write operations and is mapped to WE PC Card terminal for DMA read operations. The DACK signal is mapped to the PC Card REG signal in all transfers, and the DREQ terminal is routed to one of three options which is programmed through socket DMA register 0.
,
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29
PCI1225 GHK/PDV PC CARD CONTROLLERS
SCPS035B – MA Y 1998 – REVISED – MAY 2000
16-bit PC Card PC/PCI DMA
Some chip sets provide a way for legacy I/O devices to do DMA transfers on the PCI bus. In the PC/PCI DMA protocol, the PCI1225 acts as a PCI target device to certain DMA related I/O addresses. The PCI1225 PCREQ and PCGNT signals are provided as a point-to-point connection to a chipset supporting PC/PCI DMA. The PCREQ and PCGNT signals may be routed to the MFUNC2 and MFUNC5 terminals, respectively. See the
multifunction routing register
Under the PC/PCI protocol, a PCI DMA slave device (such as the PCI1225) requests a DMA transfer on a particular channel using a serialized protocol on PCREQ. The I/O DMA bus master arbitrates for the PCI bus, and grants the channel through a serialized protocol on PCGNT when it is ready for the transfer. The I/O cycle and memory cycles are then presented on the PCI bus, which performs the DMA transfers similarly to legacy DMA master devices.
PC/PCI DMA is enabled for each 16-bit PC Card slot by setting bit 19 in the respective system control register . On power up this bit is reset and the card PC/PCI DMA is disabled. Bit 3 of the system control register is a global enable for PC/PCI DMA, and is set at power-up and never cleared if the PC/PCI DMA mechanism is implemented. The desired DMA channel for each 16-bit PC Card slot must be configured through bits 18–16 in the system control register. The channels are configured as indicated in Table 8.
description on page 64 for details on configuring the multifunction terminals.
Table 8. PC/PCI Channel Assignments
SYSTEM CONTROL REGISTER
BIT 18 BIT 17 BIT16
0 0 0 Channel 0 8-bit DMA transfers 0 0 1 Channel 1 8-bit DMA transfers 0 1 0 Channel 2 8-bit DMA transfers 0 1 1 Channel 3 8-bit DMA transfers 1 0 0 Channel 4 Not used 1 0 1 Channel 5 16-bit DMA transfers 1 1 0 Channel 6 16-bit DMA transfers 1 1 1 Channel 7 16-bit DMA transfers
DMA CHANNEL CHANNEL TRANSFER DATA WIDTH
As in distributed DMA, the PC Card terminal mapped to DREQ must be configured through socket DMA register 0. The data transfer width is a function of channel number , and the DDMA slave registers are not used. When a DREQ
is received from a PC Card and the channel has been granted, the PCI1225 decodes the I/O
addresses listed in Table 9 and performs actions dependent upon the address.
Table 9. I/O Addresses Used for PC/PCI DMA
DMA I/O ADDRESS DMA CYCLE TYPE TERMINAL COUNT PCI CYCLE TYPE
00h Normal 0 I/O read/write
04h Normal TC 1 I/O read/write C0h Verify 0 I/O read C4h Verify TC 1 I/O read
When the PC/PCI DMA is used as a 16-bit PC Card DMA mechanism, it may not provide the performance levels of DDMA; however, the design of a PCI target implementing PC/PCI DMA is considerably less complex. No bus master state machine is required to support PC/PCI DMA, since the DMA control is centralized in the chipset. This DMA scheme is often referred to as centralized DMA for this reason.
CardBus socket registers
The PCI1225 contains all registers for compatibility with the latest PCI-to-PCMCIA CardBus bridge specification. These registers exist as the CardBus socket registers, and are listed in Table 10.
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