ST STE10/100 User Manual

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PCI 10/100 ETHERNET CONTROLLER

1.0 DESCRIPTION

The STE10/100 is a high performance PCI Fast Ethernet controller with integrated physical layer interface for 10BASE-T and 100BASE-TX application.

It was designed with advanced CMOS technology to provide glueless 32-bit bus master interface for PCI bus, boot ROM interface, CSMA/CD protocol for Fast Ethernet, as well as the physical media interface for 100BASE-TX of IEEE802.3u and 10BASE-T of IEEE802.3. The auto-negotiation function is also supported for speed and duplex detection.

The STE10/100 provides both half-duplex and fullduplex operation, as well as support for full-duplex flow control. It provides long FIFO buffers for transmission and receiving, and early interrupt mechanism to enhance performance. The STE10/100 also supports ACPI and PCI compliant power management function.

2.0 FEATURES

2.1 Industry standard

■

IEEE802.3u 100BASE-TX and IEEE802.3 10BASE-T comp l ia n t

■

Support for IEEE802.3x flow control

■

IEEE802.3u Auto-Negotiation support for 10BASE-T and 100BASE-TX

STE10/100

WITH INTEGRATED PHY (5V)

PRODUCT PREVIEW

PQFP128 (14x20x2.7mm)

ORDERING NUMB ER: STE1 0/100

■

PCI bus interface Rev. 2.2 compliant

■

ACPI and PCI power management standard compliant

■

Support PC99 wake on LAN

2.2 FIFO

■

Provides independent transmission and receiving FIFOs, each 2k bytes long

■

Pre- fe tches u p to tw o trans mit pack e ts to minimize inter frame gap (IFG) to 0.96us

■

Retransmits collided packet without reload from host memory within 64 bytes.

■

Automatically retransmits FIFO under-run packet with maximum drain threshold until 3rd time retry failure without influencing the registers and transmit threshold of next packet.

Figure 1. STE10/100Block Diagram

4B/5B

5B/4B

Manchester Encoder

Auto

otiation

Descrambler

Scrambler

Flow Control

DMA

Tx FiFo

MII

Controller

Rx FiFo

PCI Controller

M AC SubLaye

MI I Co n tr o ller

September 1999

This is preliminary information on a new product now in development. Details are subject to change without notice.

100 clock Re cover

Manchester Decoder

10 TX Filter

BaseLine Restore

Link Polarit

Transmitter

25Mhz

TX Freq.

nth.

Adaptive Equalization

10 clock Re cover

125Mhz

20Mhz

+ _

1/66

STE10/100

2.3 PCI I/F

■

Provides 32-bit PCI bus master data transfer

■

Supports PCI clock with frequency from 0Hz to 33MHz

■

Supports network operation with PCI system clock from 20MHz to 33MHz

■

Provides performance meter and PCI bus master latency timer for tuning the threshold to enhance the performance

■

Provides burst transmit packet interrupt and transmit/receive early interrupt to reduce host CPU utilizatio n

■

As bus master, supports memory-read, memory-read-line, memory-read-multiple, memory-write, memory-write-and-invalidate command

■

Supports big or little endian byte ordering

2.4 EEPROM/Boot ROM I/F

■

Provides writeable Flash ROM and EPROM as boot ROM, up to 128kB

■

Provides PCI to access boot ROM by byte, word, or double word

■

Re-writes Flash boot ROM through I/O port by programming register

■

Provides serial interface for read/write 93C46 EEPROM

■

Automatically loads device ID, vendor ID, subsystem ID, subsystem vendor ID, Maximum-Latency , and Minimum-Grand from the 64 byte contents of 93C46 after PCI reset de-asserted

2.5 MAC/Physical

■

Integrates the complete set of Physical layer 100BASE-TX and 10BASE-T functions

■

Provides Full-duplex operation in both 100Mbps and 10Mb ps modes

■

Provides Auto-negotiation (NWAY) function of full/half duplex operation for both 10 and 100 Mbps

■

Provides MLT-3 transceiver with DC restoration for Base-line wander compensation

■

Provides transmit wave-shaper, receive filters, and adaptive equalizer

■

Provides MAC and Transceiver (TXCVR) loop-back modes for diagnostic

■

Built-in Stream Cipher Scrambler/ De-scrambler and 4B/5B encoder/decoder

■

Supports external transmit transformer with 1.414:1 turn ratio

■

Supports external receive transformer with 1:1 turn ratio

2.6 LED Display

■

Provides 2 LED display modes: 3 LED displays for

100Mbps (on) or 10Mbps (off) Link (Remains on when link ok) or Activity (Blinks at 10Hz when receiving or transmitting collision-free) FD (Remains on when in Full duplex mode) or when collision detected (Blinks at 20Hz)

4 LED displays for

100 Link (On when 100M link ok) 10 Link (On when 10M link ok) Activity (Blinks at 10Hz when receiving or transmitting) FD (Remains on when in Full duplex mode) or when collision detected (Blinks at 20Hz)

2/66

STE10/100

2.7 Miscellaneous

■

ACPI and PCI compliant power management functions offer significant power-savings performance

■

Provides general purpose timers

■

128-pin QFP package

Figure 2. System Diagram of the STE10/100

PCI

Interface

Serial

EEPROM

LEDs

Boot ROM

STE10/ 100

Xfmr Medium

25 MHz

Crystal

3/66

STE10/100

3.0 PIN ASSIGNEMENT DIAGRAM Figure 3. Pin Connection

AD-25 AD-24

C-BEB3

IDSEL

-PCI

AD-23 AD-22

-PCI

AD-21 AD-20

-PCI

AD-19 AD-18

-PCI

AD-17

C-BEB2

FRAME#

-PCI

IRDY#

TRDY#

DEVSEL#

STOP#

SERR#

PAR

-PCI

C-BEB1

AD-15 AD-14

-PCI

AD-11 AD-10

-PCI

AD-9

-IR

-PCI

127

128

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16AD-16 17 18 19 20 21 22 23 24PERR# 25 26 27 28 29 30 31 32AD-13 33AD-12 34 35 36 37 38V

39 40 41 42

AD-26

126

-PCI

AD-30

AD-31

AD-28

AD-29

PME#

123122121120 118119 117116115114113

44 45 46 47 48

49 50

AD-27

125

-PCI

124

REQ#

-PCI

GNT#

PCI-CLK

52 53 54 55 56

-IR

INTA#

TX-

RST#

112 110111 109108107106105

59 60 61 62 63 64

57 58

TX+

RX+

104103

RX-

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

REF

AVDDI AV

X1 X2 AVSSX

REC

-IR

LED M1/M2 LED M1/M2 LED M1/M2

-detect

BrA-16/LED M2 BrA-15

-IR

BrA-14 BrA-13 BrA-12 BrA-11 BrA-10 BrWE# BrOE# BrCS# EECS

-IR

BrD-7/ECK BrD-6/EDI BrD-5/EDO BrD-4 BrD-3 BrD-2 BrD-1 BrD-0 BrA-9 BrA-8

4/66

-IR

-PCI

AD-8

AD-7

C-BEB0

AD-6

-PCI

AD-5

AD-4

-PCI

AD-3

AD-2

-PCI

AD-1

AD-0

N.C.

-IR

BrA -0

BrA-1

BrA-2

BrA-3

-IR DD

BrA-4

BrA-5

BrA6

BrA-7

D99TL443

STE10/100

4.0 4. PIN DESCRIPTION Table 1. Pin Description

Pin No. Name Type Description

PCI bus Interface

113 INTA# O/D PCI interrupt request. STE10/100 asserts this signal when one of the interrupt

event is set.

114 RST# I PCI Reset signal to initialize the STE10/100. The RST signal should be asserted

for at least 100µs to ensure that the STE10/100 completes initialization. During the reset period, all the output pins of STE10/100 will be placed in a highimpedance state and all the O/D pins are floated.

116 PCI-CLK I PCI clock input to STE10/100 for PCI Bus functions. The Bus signals are

synchronized relative to the rising edge of PCI-CLK PCI-CLK must operate at a frequency in the range between 20MHz and 33MHz to ensure proper network operation

117 GNT# I PCI Bus Granted. This signal indicates that the STE10/100 has been granted

ownership of the PCI Bus as a result of a Bus Request.

118 REQ# O PCI Bus Request. STE10/100 asserts this line when it needs access to the PCI

Bus.

119 PME# O

120,121 123,124 126,127

1,2 6,7

9,10 12,13 15,16 29,30

32~35

41 43,44 46,47 49,50 52,53

3 17 28 42

AD-31,30 AD-29,28 AD-27,26 AD-25,24 AD-23,22 AD-21,20 AD-19,18 AD-17,16 AD-15,14

AD-13~10

AD-9 AD-8

AD-7, 6

AD-5,4 AD-3,2 AD-1,0

C-BEB3 C-BEB2 C-BEB1 C-BEB0

The Power Management Event signal is an open drain, active low signal. The

I/O Multiplexed PCI Bus address/data pins

I/O Bus command and byte enable

STE10/100 will assert PME# to indicate that a power management event has occurred. When WOL (bit 18 of CSR18) is set, the STE10/100 is placed in Wake On LAN mode. While in this mode, the STE10/100 will activate the PME# signal upon receipt of a Magic Packet frame from the network. In the Wake On LAN mode, when LWS (bit 17 of CSR18) is set, the LAN-WAKE signal follows HP’s protocol; otherwise, it is IBM protocol.

4 IDSEL I Initialization Device Select. This signal is asserted when the host issues

configuration cycles to the STE10/100. 18 FRAME# I/O Asserted by PCI Bus master during bus tenure 20 IRDY# I/O Master device is ready to begin data transaction

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STE10/100

Table 1. Pin Description

Pin No. Name Type Description

21 TRDY# I/O Target device is ready to begin data transaction 22 DEVSEL# I/O Device select. Indicates that a PCI target device address has been decoded 23 STOP# I/O PCI target device request to the PCI master to stop the current transaction 24 PERR# I/O Data parity error detected, driven by the device receiving data 25 SERR# O/D Address parity error 26 PAR I/O Parity. Even parity computed for AD[31:0] and C/BE[3:0]; master drives PAR for

address and write data phase, target drives PAR for read data phase

BootROM/EEPROM Interf ace

56~59 61~66 80~86

67~71

72 73 74

76 EECS O Chip Select of serial EEPROM 77 BrCS# O BootROM Chip Select 78 BrOE# O BootROM Read Output Enable for flash ROM application 79 BrWE# O BootROM Write Enable for flash ROM application.

Physical Interface

98 X1 I 25 MHz reference clock input for Physical portion. When an external 25 MHz

97 X2 O 25 MHz reference clock output for Physical portion. When an external 25MHz

BrA0~3 BrA4~9

BrA10~15

BrA16/

LED M2 -

Fd/Col

BrD0~4

BrD5/EDO

BrD6/EDI

BrD7/ECK

I/O ROM data bus

Provides up to 128kB EPROM or Flash-ROM application space.

This pin can be programmed as mode 2 LED display for Full Duplex or Collision

status. It will be driven (LED on) continually when a full duplex configuration is

detected, or it will be driven at a 20 Hz blinking frequency when a collision status

is detected in the half duplex configuration.

O/I O/O O/O

BootROM data bus (0~7) EDO: Data output of serial EEPROM, data input to STE10/100 EDI:Data input to serial EEPROM, data output from STE10/100 ECK:Clock input to serial EEPROM, sourced by STE10/100

crystal is used, this pin will be connected to one of its terminals, and X2 will be connected to the other terminal. If an external 25 MHz oscillator is used, then this pin will be connected to the oscillator’s output pin.

crystal is used, this pin will be connected to one of the crystal terminals (see X1, above). If an external clock source is used, then this pin should be left open.

107,109 TX+, TX- O The differential Transmit outputs of 100BASE-TX or 10BASE-T, these pins

105,104 RX+, RX- I The differential Receive inputs of 100BASE-TX or 10BASE-T, these pins connect

101 Iref O Reference Resistor connecting pin for reference current, directly connects a 5K

6/66

connect directly to Magnetic.

directly from Magnetic.

Ohm ± 1% resistor to Vss.

Table 1. Pin Description

Pin No. Name Type Description

LED display & Miscellaneous

STE10/100

90 LED M1-

LK/Act

LED M2-

Act

92 LED M1-

Speed

LED M2-

100 Link

91 LED M1-

Fd/Col

LED M2-

10 Link

89 Vaux-

detect

O This pin can be programmed as mode 1 or mode 2:

For mode 1: LED display for Link and Activity status. This pin will be driven on continually when a good Link test is detected. This pin will be driven at a 10 Hz blinking frequency when either effective receiving or transmitting is detected. For mode 2: LED display for Activity status. This pin will be driven at a 10 Hz blinking frequency when either effective receiving or transmitting is detected.

O This pin can be programmed as mode 1 or mode 2:

For mode 1: LED display for 100M b/s or 10M b/s speed. This pin will be driven on continually when the 100M b/s network operating speed is detected. For mode 2: LED display for 100Ms/s link status. This pin will be driven on continually when 100Mb/s network operating spped is detected.

O This pin can be programmed as mode 1 or mode 2:

For mode 1: LED display for Full Duplex or Collision status. This pin will be driven on continually when a full duplex configuration is detected. This pin will be driven at a 20 Hz blinking frequency when a collision status is detected in the half duplex configuration. For mode 2: LED display for 10Ms/s link status. This pin will be driven on continually when 10Mb/s network operating speed is detected.

I When this pin is asserted, it indicates an auxiliary power source is supported

from the system.

88 Vcc-detect I When this pin is asserted, it indicates a PCI power source is supported.

Digital Power Pins

5,11,19,31,36,39,45,51,55,75,93,112,115,125 Vss 8,14,27,38,40,48,60,85,111,122,128 Vdd

Analog Power Pins

94,96,102,106,110 AVss 95,99,100,103,108 AVdd

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STE10/100

5.0 REGISTERS AND DESCRIPTORS DESCRIPTION

There are three kinds of registers within the STE10/100: STE10/100 configuration registers, PCI control/status registers, and Transceiver control/status registers.

The STE10/100 configuration registers are used to initialize and configure the STE10/100 and for identifying and querying the STE10/100.

The PCI control/status registers are used to communicate between the host and STE10/100. The host can initialize, control, and read the status of the STE10/100 through mapped I/O or memory address space.

The STE10/100 contains 11 16-bit registers to supported Transceiver control and status. They include 7 basic registers which are defined ac cording to cl ause 22 “ Reconcili ation S ub-layer and Media Ind ependent Inter face” and clause 28 “Physical Layer link signaling for 10 Mb/s and 100 Mb/s Auto-Negotiation on twisted pair” of the IEEE802.3u standard. In addition, 4 special registers are provided for advanced chip control and status.

The STE10/100 also provides receive and transmit descriptors for packet buffering and management.

5.1 STE10/100 Configuration Registers

An STE10/100 software driver can initialize and configure the chip by writing its configuration registers. The contents of configuration registers are set to their default values upon power-up or whenever a hardware reset occurs, but their settings remain unchanged whenever a software reset occurs. The configuration registers are byte, word, and double word accessible.

Table 2. STE10/100 configuration registers list

Offset I ndex Name Descriptions

00h CR0 LID Loaded device ID and vendor ID 04h CR1 CSC Configuration Status and Command 08h CR2 CC Class Code and revision number 0ch CR3 LT Latency Timer 10h CR4 IOBA IO Base Address 14h CR5 MBA Memory Base Address 2ch CR11 SID Subsystem ID and vendor ID 30h CR12 BRBA Boot ROM Base Address (ROM size = 128KB) 34h CR13 CP Capability Pointer 3ch CR15 CINT Configuration Interrup t 40h CR16 DS driver space for special purpose 80h CR32 SIG Signature of STE10/100 c0h CR48 PMR0 Power Management Register 0 c4h CR49 PMR1 Power Management Register 1

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STE10/100

Table 3. STE10/100 configuration registers table

offset b31 ----------- b16 b15 ---------- b0

00h Device ID* Vendor ID* 04h Status Command

08h Base Class Code Subclass ------ Revision # Step # 0ch ------ ------ Latency timer cache line size 10h Base I/O address

14h Base memory address

18h~

28h

2ch Subsystem ID* Subsystem vendor ID*

30h Boot ROM base address

34h Reserved Cap_Ptr 38h Reserved 3ch Max_Lat* Min_Gnt* Interrupt pin Interrupt line

h Reserved Driver Space Reserved

Reserved

80h Signature of STE10/100 c0h PMC Next_Item_Ptr Cap_ID c4h

Note: * : automatically recalled from EEPROM when PCI reset is deserted

DS(40h), bit15-8, is read/write able register SIG(80h) is hard wired register, read only

Reserved

PMCSR

5.1.1 STE10/100 configuration registers des cri ptions Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

CR0(offset = 00h), LID - Loaded Identification number of Device and Vendor

31~16 LDID Loaded Device ID, the device ID number loaded from serial

EEPROM.

15~0 LVID Loaded Vendor ID, the vendor ID number loaded from serial

EEPROM.

From EEPROM: Loaded from EEPROM

CR1(offset = 04h), CSC - Configuration command and status

31 SPE Status Parity Error.

1: means that STE10/100 detected a parity error. This bit will

be set even if the parity error response (bit 6 of CR1) is disabled.

From

EEPROM

From

EEPROM

0 R/W

R/O

30 SES Status System Error.

1: means that STE10/100 asserted the system error pin.

0 R/W

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STE10/100

Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

29 SMA Status Master Abort.

1: means that STE10/100 received a master abort and has

terminated a master transaction.

28 STA Status Target Abort.

1: means that STE10/100 received a target abort and has

terminated a master transaction.

27 --- Reserved.

26, 25 SDST Status Device Select Timing. Indicates the timing of the chip’s

assertion of device select. 01: indicates a medium assertion of DEVSEL#

24 SDPR Status Data Parity Report.

1: when three conditions are met:

a. STE10/100 asserted parity error (PERR#) or it detected

parity error asserted by another device. b. STE10/100 is operating as a bus master. c. STE10/100’s parity error response bit (bit 6 of CR1) is

enabled.

23 SFBB Status Fast Back-to-Back

Always 1, since STE10/100 has the ability to accept fast back to back transactions.

22~21 --- Reserved.

20 NC New Capabilities. Indicates whether the STE10/100 provides a

list of extended capabilities, such as PCI power management. 1: the STE10/100 provides the PCI management function 0: the STE10/100 doesn’t provide New Capabilities.

0 R/W

01 R/O

0 R/W

1 R/O

Same as

bit 19 of

CSR18

19~ 9 --- Reserved.

8 CSE Command System Error Response

1: enable system error response. The STE10/100 will assert

SERR# when it finds a parity error during the address phase. 7 --- Reserved. 6 CPE Command Parity Error Response

0: disable parity error response. STE10/100 will ignore any

detected parity error and keep on operating. Default value is

1: enable parity error response. STE10/100 will assert system

error (bit 13 of CSR5) when a parity error is detected.

5~ 3 --- Reserved.

2 CMO Command Master Operation Ability

0: disable the STE10/100 bus master ability.

1: enable the PCI bus master ability. Default value is 1 for

normal operation.

1 CMSA Command Memory Space Access

0: disable the memory space access ability.

1: enable the memory space access ability.

0 R/W

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STE10/100

Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

0 CIOSA Command I/O Space Access

R/W: Read and Write able. RO: Read abl e o n ly.

CR2(offset = 08h), CC - Class Code and Revision Number

31~24 BCC Base Class Code. It means STE10/100 is a network controller. 02h RO 23~16 SC Subclass Code. It means STE10/100 is a Fast Ethernet

15~ 8 --- Reserved.

7 ~ 4 RN Revision Number, identifies the revision number of STE10/

3 ~ 0 SN Step Number, identifies the STE10/100 steps within the

RO: Read Only.

CR3(offset = 0ch), LT - Latency Timer

31~16 --- Reserved.

15~ 8 LT Latency Timer. This value specifies the latency timer of the

0: enable the I/O space access ability.

1: disable the I/O space access ability.

Controller.

100.

current revision.

STE10/100

asserts FRAME#, the latency timer starts to count. If the

latency timer expires and the STE10/100 is still asserting

FRAME#, the STE10/100 will terminate the data transaction

as soon as its GNT# is removed.

in units of PCI bus clock cycles. Once the STE10/100

0 R/W

00h RO

Ah RO

1h RO

0 R/W

7 ~ 0 CLS Cache Line Size. This value specifies the system cache line

size in units of 32-bit double words(DW). The STE10/100

supports cache line sizes of 8, 16, or 32 DW. CLS is used by

the STE10/100 driver to program the cache alignment bits (bit

14 and 15 of CSR0) which are used for cache oriented PCI

commands, e.g., memory-read-line, memory-read-multiple,

and memory-write-and-invalidate.

CR4(offset = 10h), IOBA - I/O Base Address

31~ 7 IOBA I/O Base Address. This value indicate the base address of PCI

control and status register (CSR0~28), and Transceiver

registers (XR0~10)

6 ~ 1 --- reserved.

0 IOSI I/O Space Indicator.

1: means that the configuration registers map into I/O space.

CR5(offset = 14h), MBA - Memory Base Address

31~ 7 MBA Memory Base Address. This value indicate the base address

of PCI control and status register(CSR0~28), and Transceiver

registers(XR0~10)

6 ~ 1 --- reserved.

0 R/W

1RO

0 R/W

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STE10/100

Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

0 IOSI Memory Space Indicator.

1: means that the configuration registers map into I/O space.

CR11(offset = 2ch), SID - Subsystem ID.

31~16 SID Subsystem ID. This value is loaded from EEPROM as a result

of power-on or hardware reset.

15~ 0 SVID Subsystem Vendor ID. This value is loaded from EEPROM as

a result power-on or hardware reset.

CR12(offset = 30h), BRBA - Boot ROM Base Address. This register should be initialized before accessing the boot ROM space.

31~10 BRBA Boot ROM Base Address. This value indicates the address

mapping of the boot ROM field as well as defining the boot

ROM size. The values of bit 16~10 are set to 0 indicating that

the STE10/100 supports up to 128kB of boot ROM.

9 ~ 1 --- reserved RO R/W R/

0 BRE Boot ROM Enable. The STE10/100 will only enable its boot

ROM access if both the memory space access bit (bit 1 of

CR1) and this bit are set to 1.

1: enable Boot ROM. (if bit 1 of CR1 is also set)

CR13(offset = 34h), CP - Capabilities Pointer.

31~8 --- reserved

0RO

From

EEPROM

From

EEPROM

X: b31~17

0: b16~10

0 R/W

R/W

7~0 CP Capabilities Pointer.

CR15(offset = 3ch), CI - Configuration Interrupt

31~24 ML Max_Lat register. This value indicates how often the STE10/

100 needs to access to the PCI bus in units of 250ns. This

value is loaded from serial EEPROM as a result of power-on or

hardware reset.

23~16 MG Min_Gnt register. This value indicates how long the STE10/

100 needs to retain the PCI bus ownership whenever it

initiates a transaction, in units of 250ns. This value is loaded

from serial EEPROM as a result power-on or hardware reset.

15~ 8 IP Interrupt Pin. This value indicates one of four interrupt request

pins to which the STE10/100 is connected.

01h: means the STE10/100 always connects to INTA#

7 ~ 0 IL Interrupt Line. This value indicates the system interrupt

request lines to which the INTA# of STE10/100 is routed. The

BIOS will fill this field when it initializes and configures the

system. The STE10/100 driver can use this value to determine

priority and vector information.

CR16(offset = 40h), DS - Driver Space for special purpose.

31~16 --- reserved

C0H RO

From

EEPROM

From

EEPROM

01h RO

0 R/W

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STE10/100

Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

15~8 DS Driver Space for implementation-specific purpose. Since this

7 ~ 0 --- reserved

CR32(offset = 80h), SIG - Signature of STE10/100

31~16 DID Device ID, the device ID number of the STE10/100. 0981h RO

15~0 VID Vendor ID 1317h RO

CR48(offset = c0h), PMR0, Power Management Register0.

31 30 29 28 27

26 D2S D2_Support. The STE10/100 supports the D2 Power

25 D1S D1_Support. The STE10/100 supports the D1 Power

PSD3c, PSD3h,

PSD2, PSD1,

PSD0

area won’t be cleared upon software reset, an STE10/100

driver can use this R/W area as user-specified storage.

PME_Support.

The STE10/100 will assert PME# signal while in the D0, D1,

D2, D3hot and D3cold power state. The STE10/100 supports

Wake-up from the above five states. Bit 31 (support wake-up

from D3cold) is loaded from EEPROM after power-up or

hardware reset. To support the D3cold wake-up function, an

auxiliary power source will be sensed during reset by the

STE10/100 Vaux_detect pin. If sensed low, PSD3c will be set

to 0; if sensed high, and if D3CS (bit 31of CSR18) is set

(CSR18 bits 16~31 are recalled from EEPROM at reset), then

bit 31 will be set to 1.

Management State.

0 R/W

X1111b RO

1RO

24~22 AUXC Aux Current. These three bits report the maximum 3.3Vaux

current requirements for STE10/100 chip. If bit 31 of PMR0 is

‘1’, the default value is 111b, meaning the STE10/100 needs

375 mA to support remote wake-up in D3cold power state.

Otherwise, the default value is 000b, meaning the STE10/100

does not support remote wake-up from D3cold power state.

21 DSI The Device Specific Initialization bit indicates whether any

special initialization of this function is required before the

generic class device driver is able to use it.

0: indicates that the function does not require a device-specific

initialization sequence following transition to the D0

uninitialized state.

20 --- Reserved. 19 PMEC PME Clock. Indicates that the STE10/100 does not rely on the

presence of the PCI clock for PME# operation

18~16 VER Version. The value of 010b indicates that the STE10/100

complies with Revision 1.0a of the PCI Power Management

Interface Specification.

15~8 NIP Next Item Pointer. This value is always 0h, indicating that

there are no additional items in the Capabilities List.

7~0 CAPID Capability Identifier. This value is always 01h, indicating the

link list item as being the PCI Power Management Registers.

XXXb RO

0RO

010b RO

00h RO

01h RO

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STE10/100

Table 4. Configuration Registers Descriptions

Bit # N ame Descriptions Default Va l RW Type

CR49(offset = c4h), PMR1, Power Management Register 1.

31~16 --- reserved

15 PMEST PME_Status. This bit is set whenever the STE10/100 detects

a wake-up event, regardless of the state of the PME-En bit.

Writing a “1” to this bit will clear it, causing the STE10/100 to

deassert PME# (if so enabled). Writing a “0” has no effect.

If PSD3c (bit 31 of PMR0) is cleared (i.e. it does not support

PME# generation from D3cold), this bit is by default 0;

otherwise, PMEST is cleared upon power-up reset only and is

not modified by either hardware or software reset.

14,13 DSCAL Data_Scale. Indicates the scaling factor to be used when

interpreting the value of the Data register. This field is

required for any function that implements the Data register.

The STE10/100 does not support Data register and

Data_Scale.

12~9 DSEL Data_Select. This four bit field is used to select which data is

to be reported through the Data register and Data_Scale field.

This field is required for any function that implements the Data

The STE10/100 does not support Data_select. 8 PME_En PME_En. When set, enables the STE10/100 to assert PME#.

When cleared, disables the PME# assertion.

If PSD3c (bit 31 of PMR0) is cleared (i.e. it does not support

PME# generation from D3cold), this bit is by default 0;

otherwise, PME_En is cleared upon power up reset only and is

not modified by either hardware or software reset.

7~2 --- reserved. 000000b RO

X R/W1C*

00b RO

0000b R/W

X R/W

1,0 PWRS PowerState. This two bit field is used both to determine the

current power state of the STE10/100 and to place the STE10/

100 in a new power state. The definition of this field is given

below.

00b - D0 01b - D1 10b - D2

11b - D3hot If software attempts to write an unsupported state to this field, the write operation will complete normally on the bus, but the data is discarded and no state change occurs.

R/W1C*, Read Only and Wri te one cleare d.

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00b R/W

5.2 PCI Control/Status registers

Table 5. PCI Control/Status registers list

offset from base

address of CSR

00h CSR0 PAR PCI access register 08h CSR1 TDR transmit demand register 10h CSR2 RDR receive demand register 18h CSR3 RDB receive descriptor base address 20h CSR4 TDB transmit descriptor base address 28h CSR5 SR status register 30h CSR6 NAR network access register 38h CSR7 IER interrupt enable register 40h CSR8 LPC lost packet counter 48h CSR9 SPR serial port register

Index Name Descriptions

STE10/100

50h CSR10 --- Reserved 58h CSR11 TMR Timer 60h CSR12 --- Reserved 68h CSR13 WCSR Wake-up Control/Status Register 70h CSR14 WPDR Wake-up Pattern Data Register 78h CSR15 WTMR watchdog timer 80h CSR16 ACSR5 status register 2 84h CSR17 ACSR7 interrupt enable register 2 88h CSR18 CR command register

8ch CSR19 PCIC PCI bus performanc e counter 90h CSR20 PMCSR Power Management Command and Status 94h CSR21 --- Reserved 98h CSR22 --- Reserved

9ch CSR23 TXBR transmit burst counter/time-out register a0h CSR24 FROM flash(boot) ROM port a4h CSR25 PAR0 physical address register 0 a8h CSR26 PAR1 physical address register 1

ach CSR27 MAR0 multicast address hash table register 0 b0h CSR28 MAR1 multicast address hash table register 1

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STE10/100

Table 6. Control/Status register description

Bit # N ame Descriptions Default Va l RW Type

CSR0(offset = 00h), PAR - PCI Access Register

31~25 --- reserved

24 MWIE Memory Write and Invalidate Enable.

1: enable STE10/100 to generate memory write invalidate

command. The STE10/100 will generate this command while writing full cache lines.

0: disable generating memory write invalidate command. The

STE10/100 will use memory write commands instead.

23 MRLE Memory Read Line Enable.

1: enable STE10/100 to generate memory read line command

when read access instruction reaches the cache line boundary. If the read access instruction doesn’t reach the cache line boundary then the STE10/100 uses the memory

read command instead. 22 --- reserved 21 MRME Memory Read Multiple Enable.

1: enable STE10/100 to generate memory read multiple

commands when reading a full cache line. If the memory is

not cache-aligned, the STE10/100 uses the memory read

command instead.

20~19 --- reserved

18,17 TAP Transmit auto-polling in transmit suspended state.

00: disable auto-polling (default) 01: polling own-bit every 200 us 10: polling own-bit every 800 us 11: polling own-bit every 1600 us

16 --- reserved

0 R/W*

00 R/W*

15, 14 CAL Cache alignment. Address boundary for data burst, set after

reset 00: reserved (default) 01: 8 DW boundary alignment 10: 16 DW boundary alignment 11: 32 DW boundary alignment

13 ~ 8 PBL Programmable Burst Length. This value defines the maximum

number of DW to be transferred in one DMA transaction. value: 0 (unlimited), 1, 2, 4, 8, 16(default), 32

7 BLE Big or Little Endian selection.

0: little endian (e.g. INTEL) 1: big endian (only for data buffer)

6 ~ 2 DSL Descriptor Skip Length. Defines the gap between two

descriptors in the units of DW.

1 BAR Bus arbitration

0: receive operations have higher priority 1: transmit operations have higher priority

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00 R/W*

010000 R/W*

0 R/W*

STE10/100

Table 6. Control/Status register description

Bit # N ame Descriptions Default Va l RW Type

0 SWR Software reset

0 R/W* 1: reset all internal hardware (including MAC and transceivers), except configuration registers. This signal will be cleared by the STE10/100 itself after the reset process is completed.

R/W* = Before writing the transmit and receive operations should be stopped.

CSR1(offset = 08h), TDR - Transmit demand register

31~ 0 TPDM Transmit poll demand.

While the STE10/100 is in the suspended state, a write to this

FFFFFFFF

h register (any value) will trigger the read-tx-descriptor process, which checks the own-bit; if set, the transmit process is then started.

R/W* = Before writing the transmit process should be in the suspended state.

CSR2(offset = 10h), RDR - Receive demand register

31 ~ 0 RPDM Receive poll demand

While the STE10/100 is in the suspended state, a write to this

FFFFFFFF

h register (any value) will trigger the read-rx-descriptor process, which checks the own-bit, if set, the process to move data from the FIFO to buffer is then started.

R/W* = Before writing the receive process should be in the suspended state.

CSR3(offset = 18h), RDB - Receive descriptor base address

31~ 2 SAR Start address of receive descriptor 0 R/W*

R/W*

1, 0 RBND must be 00, DW boundary 00 RO

R/W* = Before writing the receive process should be stopped.

CSR4(offset = 20h), TDB - Transmit descriptor base address

31~ 2 SAT Start address of transmit descriptor 0 R/W*

1, 0 TBND must be 00, DW boundary 00 RO

R/W* = Before writing the transmit process should be stopped.

CSR5(offset = 28h), SR - Status register

31~ 26 ---- reserved 25~ 23 BET Bus Error Type. This field is valid only when bit 13 of

000 RO CSR5(fatal bus error) is set. There is no interrupt generated by this field. 000: parity error, 001: master abort, 010: target abort 011, 1xx: reserved

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STE10/100

Table 6. Control/Status register description

Bit # N ame Descriptions Default Va l RW Type

22~ 20 TS Transmit State. Reports the current transmission state only, no

interrupt will be generated. 000: stop 001: read descriptor 010: transmitting 011: FIFO fill, read the data from memory and put into FIFO 100: reserved 101: reserved 110: suspended, unavailable transmit descriptor or FIFO

overflow

111: write descriptor

19~17 RS Receive State. Reports current receive state only, no interrupt

will be generated. 000: stop 001: read descriptor 010: check this packet and pre-fetch next descriptor 011: wait for receiving data 100: suspended 101: write descriptor 110: flush the current FIFO 111: FIFO drain, move data from receiving FIFO into memory

16 NISS Normal Interrupt Status Summary. Set if any of the following

bits of CSR5 are asserted: TCI, transmit completed interrupt (bit 0) TDU, transmit descriptor unavailable (bit 2) RCI, receive completed interrupt (bit 6)

15 AISS Abnormal Interrupt Status Summary. Set if any of the following

bits of CSR5 are asserted: TPS, transmit process stopped (bit 1) TJT, transmit jabber timer time-out (bit 3) TUF, transmit under-flow (bit 5) RDU, receive descriptor unavailable (bit 7) RPS, receive process stopped (bit 8) RWT, receive watchdog time-out (bit 9) GPTT, general purpose timer time-out (bit 11) FBE, fatal bus error (bit 13)

000 RO

0 RO/LH*

14 ---- reserved 13 FBE Fatal Bus Error.

1: on occurrence of parity error, master abort, or target abort (see bits 25~23 of CSR5). The STE10/100 will disable all bus access. A software reset is required to recover from a parity error.

12 --- reserved 11 GPTT General Purpose Timer Timeout, based on CSR11 timer

10 --- reserved

9 RWT Receive Watchdog Timeout, based on CSR15 watchdog timer

8 RPS Receive Process Stopped, receive state = stop 0 RO/LH*

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0 RO/LH*

STE10/100

Table 6. Control/Status register description

Bit # N ame Descriptions Default Va l RW Type

7 RDU Receive Descriptor Unavailable

1: when the next receive descriptor can not be obtained by the STE10/100. The receive process is suspended in this situation. To restart the receive process, the ownership bit of the next receive descriptor should be set to STE10/100 and a receive poll demand command should be issued (if the receive poll demand is not issued, the receive process will resume when a new recognized frame is received).

6 RCI Receive Completed Interrupt

1: when a frame reception is completed.

5 TUF Transmit Under-Flow

1: when an under-flow condition occurs in the transmit FIFO during transmitting. The transmit process will enter the suspended state and report the under-flow errror on bit 1 of TDES0.

4 --- Reserved 3 TJT Transmit Jabber Timer Time-out

1: when the transmit jabber timer expires. The transmit processor will enter the stop state and TO (bit 14 of TDES0, transmit jabber time-out flag) will be asserted.

2 TDU Transmit Descriptor Unavailable

1: when the next transmit descriptor can not be obtained by the STE10/100. The transmission process is suspended in this situation. To restart the transmission process, the ownership bit of the next transmit descriptor should be set to STE10/100 and, if the transmit automatic polling is not enabled, a transmit poll demand command should then be issued.

0 RO/LH*

1 TPS Transmit Process Stopped.

1: while transmit state = stop

0 TCI Transmit Completed Interrupt.

1: set when a frame transmission completes with IC (bit 31 of TDES1) asserted in the first transmit descriptor of the frame.

LH = High Latching and cleared by writing 1.

CSR6(offset = 30h), NAR - Network access register

31~22 --- reserved

21 SF Store and forward for transmit

0: disable 1: enable, ignore the transmit threshold setting

20 --- reserved 19 SQE SQE Disable

0: enable SQE function for 10BASE-T operation. The STE10/

100 provides SQE test function for 10BASE-T half duplex operation.

1: disable SQE function.

18~16 ----- reserved

0 RO/LH*

0 R/W*

1 R/W*

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STE10/100

Table 6. Control/Status register description

Bit # N ame Descriptions Default Va l RW Type

15~14 TR transmit threshold control

00: 128-bytes (100Mbps), 72-bytes (10Mbps) 01: 256-bytes (100Mbps), 96-bytes (10Mbps) 10: 512-bytes (100Mbps), 128-bytes (10Mbps) 11: 1024-bytes (100Mbps), 160-bytes (10Mbps)

13 ST Stop transmit

0: stop (default) 1: start

12 FC Force collision mode

0: disable 1: generate collision upon transmit (for testing in loop-back

mode)

11, 10 OM Operating Mode

00: normal 01: MAC loop-back, regardless of contents of XLBEN (bit 14 of

XR0, XCVR loop-back)

10,11: reser ved

9, 8 --- reserved

7 MM Multicast Mode

1: receive all multicast packets

6 PR Promiscuous Mode

1: receive any good packet. 0: receive only the right destination address packets

5 SBC Stop Back-off Counter

1: back-off counter stops when carrier is active, and resumes

when carrier is dropped.

0: back-off counter is not effected by carrier

00 R/W*

0 R/W

0 R/W**

00 R/W**

0 R/W***

1 R/W***

0 R/W**

4 --- reserved 3 PB Pass Bad packet

1: receives any packets passing address filter, including runt

packets, CRC error, truncated packets. For receiving all bad packets, PR (bit 6 of CSR6) should be set to 1.

0: filters all bad packets

2 --- reserved 1 SR Start/Stop Receive

0: receive processor will enter stop state after the current

frame reception is completed. This value is effective only when the receive processor is in the running or suspending state. Note: In “Stop Receive” state, the PA USE packet and Remote Wake Up packet will not be affected and can be received if the corresponding function is enabled.

1: receive processor will enter running state.

0 --- reserved

W* = only write when the transmit processor stopped. W** = only write when the transmit and rece ive processor both stopped. W*** = only write when the receive processor stopped.

CSR7(offset = 38h), IER - Interrupt Enable Register

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0 R/W***

0 R/W

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