NEC UPD30121F1-168-GA1, UPD30121F1-131-GA1 Datasheet

DATA SHEET
MOS INTEGRATED CIRCUIT
µµµµ
PD30121
VR4121
TM
64-/32-BIT MICROPROCESSOR

DESCRIPTION

The µPD30121 (VR4121) is one of NEC’s VR SeriesTM RISC (Reduced Instruction Set Computer) microprocessors
and is a high-performance 64-/32-bit microprocessor employing the MIPS
R
4121 uses the high-performance, super power-saving VR4120TM as the CPU core, and has many peripheral
The V functions such as a DMA controller, software modem interface, serial interface, keyboard interface, IrDA interface, touch panel interface, real-time clock, A/D converter, and D/A converter. Configured with these functions, the
R
4121 is suitable for high-speed battery-driven portable information systems. The external memory bus width can
V be selected from 32 bits and 16 bits, realizing high-speed data transfer.
Detailed function descriptions are provided in the following user’s manual. Be sure to read it before designing.
R
4121 User’s Manual (U13569E)
V

FEATURES

• Employs 64-bit MIPS architecture
• Conforms to MIPS III instruction set (deleting FPU, LL, LLD, SC, and SCD instructions)
• Optimized 6-stage pipeline • Keyboard interface and touch panel interface
• Supports MIPS16 instruction set • 4-channel DMA controller
• Supports high-speed product-sum operation instructions
• Supports four types of operating modes, enabling more effective power-consumption management
• On-chip clock generator
• Address space physical: 32 bits
virtual: 40 bits
Integrates 32 double entry TLBs
• High-capacity instruction/data separated cache memories Instruction: 16 Kbytes Data: 8 Kbytes
• Memory controller (ROM, EDO-type DRAM, synchronous DRAM (SDRAM), synchronous ROM (SROM), and flash memory supported)
• Serial interface (NS16550 compatible)
• IrDA interface for infrared communication
• Software modem interface
• A/D and D/A converters to support digital voice I/O
• Supports ISA bus subset• Internal maximum operating frequency: 131/168 MHz
• Power supply voltage: V
3.3 V (external) (131 MHz model)
• Package: 224-pin fine-pitch FBGA
TM
RISC architecture.
DD
2 = 2.5 V (internal), VDD3 =

APPLICATIONS

Battery-driven portable information systems
Embedded controllers, etc.

ORDERING INFORMATION

Part Number Package Internal Maximum Operating Frequency
PD30121F1-131-GA1 224-pin plastic FBGA (16 × 16) 131 MHz
µ
PD30121F1-168-GA1 224-pin plastic FBGA (16 × 16) 168 MHz
µ
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. U14691EJ1V0DS00 (1st edition) Date Published June 2000 N CP(K) Printed in Japan
2000©

PIN CONFIGURATION

224-pin plastic FBGA (16 × 16)
PD30121F1-131-GA1
µ
PD30121F1-168-GA1
µ
Bottom view Top view
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
µµµµ
PD30121
VUTRPNMLKJHGFEDCBA ABCDEFGHJKLMNPRTUV
Index mark
2
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121
Pin No. Power
Supply
A1 3.3 V VDD3 C15 3.3 V RTS#/CLKSEL1 H15 3.3 V GND3 A2 3.3 V SHB# C16 3.3 V GND3 H16 3.3 V KPORT6 A3 3.3 V BUSCLK C17 3.3 V ILCSENSE H17 3.3 V KPORT4 A4 3.3 V HLDACK# C18 3.3 V AFERST# H18 2.5 V VDD2 A5 3.3 V IOCHRDY D1 3.3 V DATA5 J1 3.3 V DATA20/GPIO20 A6 3.3 V MEMW# D2 3.3 V DATA3 J2 3.3 V DATA17/GPlO17 A7 3.3 V ADD23 D3 3.3 V DATA6 J3 3.3 V DAT A 22/GPlO22 A8 3.3 V VDD3 D4 3.3 V GND3 J4 3.3 V DATA19/GPIO19 A9 3.3 V ADD18 D5 3.3 V MEMCS16# J15 3.3 V KSCAN9/GPIO41 A10 3.3 V ADD15 D6 3.3 V ADD25/SCLK J16 3.3 V VDD3 A11 3.3 V ADD8 D7 3.3 V GND3 J17 2. 5 V GND2 A12 3.3 V ADD7 D8 3.3 V ADD19 J18 3.3 V KSCAN11/ GPIO43 A13 2.5 V VDD2 D9 3.3 V ADD16 K1 3.3 V DATA23/GPIO23 A14 3.3 V DCD#/GPIO15 D10 3.3 V ADD14 K2 3.3 V DATA26/GPI O26 A15 3.3 V TXD/CLKSEL2 D11 3.3 V VDD3 K3 3.3 V DATA25/GPIO25 A16 3.3 V IRDOUT# D12 3.3 V GND3 K4 3.3 V DATA21/GPIO21 A17 3.3 V IRING D13 3.3 V ADD4 K15 3.3 V KSCAN7/GPIO39 A18 3.3 V VDD3 D14 3.3 V CTS# K16 3.3 V KSCAN10/GP IO42 B1 3.3 V DATA1 D15 3.3 V GND3 K17 3.3 V KSCAN5/GPIO37 B2 3.3 V IOR# D16 3.3 V GND3 K18 3.3 V KSCAN8/GPIO40 B3 3.3 V IOW# D17 3. 3 V SDI L1 3.3 V DAT A 27/GPIO27 B4 3.3 V LEDOUT# D18 3.3 V SDO L2 3.3 V DAT A31/GPIO31 B5 3.3 V FIRCLK E1 3.3 V DATA9 L3 3.3 V DATA29/GPIO29 B6 3.3 V HLDRQ# E2 3.3 V DATA4 L4 3.3 V DAT A 24/GPIO24 B7 3.3 V ZWS# E3 3.3 V DATA7 L15 3.3 V KSCAN3/ GP IO35 B8 3.3 V ADD24 E4 3.3 V DATA10 L16 3.3 V KSCAN6/GPIO38 B9 3.3 V ADD21 E15 3.3 V OPD# L17 3.3 V KSCAN0/GPIO32 B10 3.3 V ADD12 E16 3.3 V HSPSCLK L18 3.3 V KSCAN4/GPIO36 B11 3.3 V ADD6 E17 3.3 V FS M1 3.3 V DATA30/GPIO30 B12 2.5 V GND2 E18 3.3 V HC0 M2 3.3 V VDD3 B13 3.3 V DSR# F1 3.3 V DATA13 M3 3.3 V GND3 B14 3.3 V IRDIN F2 3.3 V DATA8 M4 3.3 V DATA28/GPIO28 B15 3.3 V FIRDIN#/SEL F3 3.3 V DATA11 M15 3.3 V KSCAN2/GPIO34 B16 3.3 V BATTINH/BATTINT# F4 3.3 V DATA14 M16 3.3 V MIPS16EN B17 3.3 V OFFHOOK F15 3.3 V KPORT3 M17 3.3 V GND3 B18 3.3 V MUTE F16 3.3 V HSPMCLK M18 3.3 V KSCAN1/GPIO 33 C1 3.3 V DATA2 F17 3.3 V TELCON N1 2.5 V VDD2 C2 3.3 V DATA0 F18 3.3 V KPORT1 N2 3.3 V ADD3 C3 3.3 V SM ODE2 G1 2. 5 V VDD2 N3 3.3 V ADD10 C4 3.3 V CKE G2 3.3 V DATA12 N4 3.3 V GND2 C5 3.3 V GND3 G3 3.3 V DATA15 N15 3.3 V GND3 C6 3.3 V IOCS16# G4 3.3 V GND3 N16 3.3 V VDD3 C7 3.3 V MEM R# G15 3. 3 V KPORT7 N17 2.5 V VDDP C8 3.3 V ADD22 G16 3.3 V KPORT2 N18 3.3 V GND3 C9 3.3 V ADD20 G17 3.3 V KPORT0 P1 3.3 V ADD9 C10 3.3 V ADD17 G18 3.3 V KPORT5 P2 3.3 V ADD0 C11 3.3 V ADD13 H1 3.3 V DATA16/GP IO16 P3 3.3 V A DD2 C12 3.3 V ADD5 H2 2.5 V GND2 P4 3.3 V ADD11 C13 3.3 V RXD H3 3.3 V DATA18/GPIO18 P15 2.5 V VDD2 (VDDPD) C14 3.3 V DTR#/CLKSEL0 H4 3.3 V VDD3 P16 2.5 V GNDP
Pin Name Pin No. Power
Supply
Pin Name Pin No. Power
Supply
Pin Name
Remark
# indicates active low.
Data Sheet U14691EJ1V0DS00
3
µµµµ
PD30121
Pin No. Power
Supply
P17 3.3 V CLKX2 T6 3.3 V AV P18 2.5 V GND2 (GNDPD) T7 3.3 V LCAS# U14 3.3 V SYSDIR/GPIO6 R1 3.3 V ADD1 T8 3.3 V ROMCS2# U15 3.3 V SCAS#/GPI O5 R2 3.3 V POWER T9 3.3 V RD# U16 3.3 V GPIO1 R3 3.3 V GND3 T10 3.3 V WR# U17 3.3 V GPIO2 R4 3.3 V GND3 T11 3.3 V DBUS 32/GPIO48 U18 3.3 V CGND R5 3.3 V AUDIOIN T12 3.3 V DDOUT/GPI O44 V1 3.3 V VDD3 R6 3.3 V DV R7 3.3 V MRAS2#/ULCAS# T14 3.3 V GPIO8 V3 3.3 V TPX0 R8 3.3 V MRA S 1# T15 3.3 V GND3 V4 3.3 V TPY1 R9 3.3 V ROMCS1# T16 3.3 V GND3 V5 3.3 V ADIN2 R10 3.3 V RSTOUT T17 3.3 V GPIO0 V6 3.3 V AUDIOOUT R11 3.3 V GND3 T18 3.3 V RTCX 1 V7 3.3 V MRAS 3#/UUCAS# R12 3.3 V SMODE1/GP IO49 U1 3.3 V MPOWER V8 3.3 V MRAS0# R13 3.3 V DDIN/GPIO45 U2 3.3 V RTCRST# V9 3.3 V ROMCS0# R14 3.3 V GPIO12 U3 3.3 V AGND V10 3.3 V VDD3 R15 3.3 V GND3 U4 3. 3 V TP X 1 V11 3 . 3 V LCDCS# R16 3.3 V CV R17 3.3 V RTCX2 U6 3.3 V ADIN1 V13 3 . 3 V GPIO14 R18 3.3 V CLKX1 U7 3.3 V DGND V14 3.3 V GPI O10 T1 3.3 V POWERON U8 3.3 V UCAS# V15 3.3 V SPOWER/GPIO7 T2 3.3 V RSTSW# U9 3.3 V ROMCS3# V16 3.3 V SRAS#/GPIO4 T3 3.3 V GND3 U10 3.3 V LDCRDY V 17 3.3 V GPI O3 T4 3.3 V PIUV T5 3.3 V ADIN0 U12 3.3 V GPIO13
Pin Name Pin No. Power
DD
DD
DD
T13 3.3 V GPIO11 V2 3.3 V PIUGND
U5 3.3 V TPY0 V12 3.3 V DCTS#/GPIO47
U11 3.3 V DRTS#/GPIO46 V18 3.3 V VDD3
Supply
Pin Name Pin No. Power
DD
U13 3.3 V GPIO9
Pin Name
Supply
Remark
# indicates active low.
4
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121

PIN IDENTIFICATION

ADD (0:25): Address Bus LCDCS#: LCD Chip Select ADIN (0:2): General Purpose Input for A/D LCDRDY: L CD Ready AFERST#: AFE Reset LEDOUT#: LED Output AGND: GND for A/D MEMCS16#: Memory Chip Select 16 AUDIOIN: Audio Input MEMR#: Memory Read AUDIOOUT: Audio Output MEMW#: Memory Write
DD
AV
:V BATTINH: Battery Inhibit MPOWER: Main Power BATTINT#: Battery Interrupt Request MRAS(0:3)#: DRAM Row Address Strobe BUSCLK: System Bus Clock MUTE: Mute CGND: GND for Oscillator OFFHOOK: Off Hook CKE: Clock Enable OPD#: Output Power Down CLKSEL (0:2): Clock Select PIUGND: GND for Touch Panel Interface CLKX1: Clock X1 PIUV CLKX2: Clock X2 POWER: Power Switch CTS#: Clear to Send POWERON: Power On State
DD
CV
:V DATA (0:31): Data Bus ROMCS(0:3)#: ROM Chip Select DBUS32: Data Bus 32 RSTOUT: System Bus Reset Output DCD#: Data Carrier Dete ct RSTSW#: Reset Switch DCTS#: Debug Serial Clear to Send RTCRST#: Real-time Clock Reset DDIN: Debug Serial Data Input RTCX1: Real-time Clock X1 DDOUT: Debug Serial Data Output RTCX2: Real-time Clock X2 DGND: GND for D/A RTS#: Request to Send DRTS#: Debug Serial Request to Send RxD: Receive Data DSR#: Data Set Ready SCAS#: DTR#: Data Terminal Ready DVDD
:V FIRCLK: FIR Clock SDI: HSP Serial Data Input FIRDIN#: FIR Data Input SDO: HSP Serial Data Output FS: Frame Synchronization SEL: IrDA Module Select GND2, GND3: Ground SHB#: System Hi-Byte Enable GNDP, GNDPD: Ground for PLL SMODE (1:2): SDRAM Mode GPIO (0:49): General Purpose I/O SPOWER: SDRAM Power Control HC0: Hardware Control 0 SRAS#: HLDACK#: Hold Acknowledge HLDRQ#: Hold Request SYSDIR: System Bus Buffer Direction HSPMCLK: HSP Codec Master Clock TELCON: Telephone Control HSPSCLK: HSP Codec Serial Clock TPX (0:1): Touch Panel X I/O ILCSENSE: Input Loop Current Sensing TPY (0:1): Touch Panel Y I/O IOCHRDY: I/O Channel Ready TxD: Transmit Data IOCS16#: I/O Chip Select 16 UCAS#: Upper Column Address Strobe IOR#: I/O Read ULCAS#: Lower Byte of Upper Column IOW#: I/O Write Address Strobe IRDIN: IrDA Data Input UUCAS#: Upper Byte of Upper Column IRDOUT#: IrDA Data Output Address Strobe IRING: Input Ring V KPORT (0:7): Key Code Data Input V KSCAN (0:11): Key Scan Line WR#: Write LCAS#: Lower Column Address Strobe ZWS#: Zero Wait State
DD
for A/D MIPS16EN: MIPS16 Enable
DD
:V
DD
for Oscillator RD#: Read
DD
for Touch Panel Interface
Column Address Strobe for SDRAM/SROM
DD
for D/A SCLK: SDRAM/SROM Clock
Row Address Strobe for SDRAM/SROM
DD
2, VDD3: Power Supply Voltage
DD
P, VDDPD: VDD for PLL
Remark
# indicates active low.
Data Sheet U14691EJ1V0DS00
5
µµµµ

INTERNAL BLOCK DIAGRAM AND EXAMPLE OF CONNECTION OF EXTERNAL BLOCKS

32.768 kHz 18.432 MHz
CODEC AFE
PD30121
OSB OSB PLL
LCD module
PD16661
µ
LCD panel
480 × 240
PC card
ROM/SROM/flash
memory
EDO DRAM/
SDRAM
µ
PD16666
PCMCIA
/buffer
VR4120 CPU core
131/168 MHz
BCU
VR4121

CPU CORE INTERNAL BLOCK DIAGRAM

Virtual address bus Internal data
bus
HSP
RTC
DSU
ICU
PMU
CMU
DCU
DMAAU
GIU
KIU
LED
AIU
PIU
SIU
FIR
48 MHz
D/A
A/D
Touch panel
RS-232C
driver
IR
driver
Address/data (o)
Address/data (i)
6
Control (o)
Control (i)
Internal clock
Bus
interface
Data
cache
(8 Kbytes)
Data Sheet U14691EJ1V0DS00
Instruction
cache
(16 Kbytes)
Clock
generator
CP0 CPU
TLB
µµµµ
PD30121
CONTENTS
1. PIN FUNCTIONS.................................................................................................................................. 8
1.1 Pin Functions .............................................................................................................................................8
1.2 Pin Status in Specific Status...................................................................................................................17
1.3 Recommended Connection and I/O Circuit Types................................................................................21
1.4 Pin I/O Circuits .........................................................................................................................................24
2. ELECTRICAL SPECIFICATIONS...................................................................................................... 25
3. PACKAGE DRAWING....................................................................................................................... 71
4. RECOMMENDED SOLERING CONDITIONS .................................................................................. 72
Data Sheet U14691EJ1V0DS00
7

1. PIN FUNCTIONS

µµµµ
PD30121
Remark
# indicates active low.

1.1 Pin Functions

(1) System bus interface signals
Signal I/O Function
ADD25/SCLK O This function diff ers depending on how the SMODE (1:2) signal is set.
<When SMODE (1:2) signal = 00>
This is a 25-bit address bus .
<When SMODE (1:2) signal ≠ 00>
This is the operating cloc k for SDRAM and SROM.
ADD (0:24) O This is a 25-bit address bus. The VR4121 uses this to specify addresses for the SDRAM, SROM,
DRAM, ROM, LCD, or system bus (ISA).
DATA (0:15) I/O This is a 16-bi t dat a bus . The VR4121 uses this to transm it and receive data with a SDRAM , SROM,
DRAM, ROM, LCD, or system bus.
DATA (16:31)/ GPIO (16:31)
LCDCS# O This is the LCD chip sel ect signal. This s ignal is active when the VR4121 is performing LCD acces s and
RD# O This i s active when the VR4121 is reading data from the LCD, SDRA M , SROM, DRAM, or ROM. WR# O This is active when the VR4121 is writing data to the LCD, SDRAM, or DRAM. LCDRDY I This is the LCD ready signal. Set this signal as active when the LCD controller is ready to recei ve
ROMCS (2:3)# O The function differs wi th the setting of the DBUS32 signal.
ROMCS (0:1)# O This i s the ROM or SROM chip select signal. CKE O This is the SDRAM or SROM c lock enable signal. When using neither SDRAM nor SROM, c onnect to
UUCAS#/ MRAS3#
I/O This function differs depending on how the DBUS32 signal is s et .
<When DBUS32 signal = 1>
This is the high-order 16 bits of the 32-bit data bus.
R
This bus is used for trans m i tting and receiving data between the V
<When DBUS32 signal = 0>
This is a general-purpose I/O port .
high-speed system bus access using the ADD/DATA bus.
access from the V
<When DBUS32 signal = 1>
This becomes the chip s el ect signal for the extended ROM, SROM, DRAM, or SDRAM.
<When DBUS32 signal = 0>
This is the ROM or SROM chip sel ec t signal.
GND or leave open.
O This functi on di ffers depending on how the DBUS32 signal i s set or types of memory to be accessed.
<When DBUS32 signal = 1>
When accessing DRAM (EDO t ype): This signal is active (UUCAS#) when a valid column address is output via the ADD bus during ac cess of DATA (24:31) in the 32-bit data bus. When accessing SDRAM: T hi s is the I/O buffer cont rol signal (UUDQM#) that is used during ac cess of DATA (24:31) signal in the 32 bi t data bus. During 32-bit access of LCD/ hi gh-speed system memory: Byte enable signal that is used during access of DATA (24:31) signal.
<When DBUS32 signal = 0>
When accessing DRAM (EDO t ype): This is the DRAM's RAS signal (MRAS3#). This signal is active when a valid row address i s output via the ADD bus for the DRA M connected to the high-order address. When accessing SDRAM: Thi s is the SDRAM's chi p select signal (CS3#). This signal is active when a command is issued for the SDRAM connected to the high-order address.
R
4121.
4121 and the DRAM and ROM.
(1/3)
8
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121
Signal I/O Function
ULCAS#/ MRAS2#
MRAS (0:1)# O This function diff ers depending on the type of memory being accessed.
UCAS# O This functi on di f fers depending on the type of memory bei ng accessed.
LCAS# O This function differs depending on the ty pe of memory being accessed.
BUSCLK O This is the system bus clock. It is used to output the clock that is supplied to the controller on the
SHB# O This is the system bus high-byte enable signal. During 16-bit system bus access, this signal is active
IOR# O This is the system bus I/O read signal. It is active when the VR4121 accesses the system bus to read
IOW# O This is the system bus I/O write signal. It is active when the VR4121 accesses the system bus to write
MEMR# O This is the system bus memory read signal. It is active when the VR4121 accesses the system bus to
MEMW# O This is the system bus memory write signal. It is active when the VR4121 accesses the system bus to
ZWS# I This is the system bus zero wait state signal. Set this signal as acti ve to enable the controller on the
O This functi on di ffers depending on how the DBUS32 signal i s set and type of memory being ac cessed.
<When DBUS32 signal = 1>
When accessing DRAM (EDO t ype): This signal is act i ve (ULCAS#) when a valid column address i s output via the ADD bus during ac cess of DATA (16:23) signal i n the 32-bit data bus. When accessing SRAM: Thi s i s the I/O buffer control signal (ULDQM#) that is used during ac cess of DATA (16:23) signal in the 32-bit dat a bus. During 32-bit access of LCD/ hi gh-speed system memory: Byte enable signal that is used during access of DATA (16:23) signal.
<When DBUS32 signal = 0>
When accessing DRAM (EDO t ype): This is the DRAM's RAS signal (MRAS2#). This signal is active when a valid row address i s output via the ADD bus for the DRA M connected to the next highest address after the hi ghest high-order address. When accessing SDRAM: Thi s is the SDRAM's chi p select signal (CS2#). This signal is active when a command is issued for the SDRAM connected to the s econd highest high-order address.
<When accessing DRAM (EDO t ype)>
This is the DRAM's RA S-only signal.
<When accessing SDRAM>
This is the SDRAM's chip select signal (CS (0: 1)#).
<When accessing DRAM (EDO t ype)>
This is the DRAM's CA S signal. This signal is active when a valid column addres s is output via the ADD bus during access of DATA (8:15) signal in the DRAM.
<When accessing SDRAM>
This is the I/O buff er control signal (UDQM#) that is used during access of DATA (8:15) signal.
< During 32-bit access of LCD/ hi gh-speed system memory >
This is the byte enable si gnal that is used during access of DATA (8:15) signal. This signal is active when a valid address is output via the ADD bus for access to DATA (8:15) signal when the si ze of the access bus to t he LCD i s 32 bits.
<When accessing DRAM (EDO t ype)>
This is the DRAM's CA S signal. This signal is active when a valid column addres s is output via the ADD bus during access of DATA (0:7) signal in the DRAM.
<When accessing SDRAM>
This is the I/O buff er control signal (LDQM#) that is used during access of DATA (0:7) signal.
< During 32-bit access of LCD/ hi gh-speed system memory >
This is the byte enable si gnal that is used during access of DATA (0:7) signal.
system bus. Its frequency is determined based on the status of the CLKSEL (0:2) signal. Ordinarily, the frequency is 1/4 of t he TCl ock frequency. (See can be changed via the PMU register settings.
when the high-order byte is valid on t he data bus.
data from an I/O port.
data to an I/O port.
read data from memory.
write data to memory.
system bus to be accessed by the V
R
4121 without a wait interval.
(5) RS-232C interface signals
). The frequency
(2/3)
Data Sheet U14691EJ1V0DS00
9
µµµµ
PD30121
(3/3)
Signal I/O Function
RSTOUT O This is the system bus reset signal. It is active when the VR4121 resets the system bus controller
(during bus timeout, manipulation of BCUCNTREG1 register, and power-down mode).
MEMCS16# I Thi s i s a dynamic bus sizing request signal. Set this signal as active when system bus memory
accesses data in 16-bit wi dth. This signal is inv al i d when 32-bi t wi dth is selected using LCD/hi gh-speed system bus.
IOCS16# I This is a dynamic bus s i zing request signal. Set t hi s signal as active when system bus I/O accesses
data in 16-bit width. This s i gnal i s invalid when 32-bit width is s el ected using LCD/high-speed system bus.
IOCHRDY I This is the system bus ready signal. Set this signal as active when the system bus controller is ready to
be accessed by the V HLDRQ# I This is a hold request signal for the system bus and DRAM bus that is s ent from an external bus mast er. HLDACK# O This is a hol d ac knowledge signal for the system bus and DRAM bus that is s ent to an external bus
master. SRAS#/GPIO4 I/O This function differs depending on the type of memory being access ed.
<When accessing DRAM (EDO t ype)>
This is a general-purpose I/O port .
<When accessing SDRAM>
This is the RAS signal for SDRAM and SROM only.
SCAS#/GPIO5 I/O This function differs depending on the type of memory being access ed.
<When accessing DRAM (EDO t ype)>
This is a general-purpose I/O port .
<When accessing SDRAM>
This is the CAS signal for SDRAM and SROM only.
SYSDIR/GPIO6 I/O This function differs depending on t he type of memory being accessed.
<When accessing DRAM (EDO t ype)>
This is a general-purpose I/O port .
<When accessing SDRAM>
This is the direction c ontrol signal for the buffer used to reduce the DATA bus's load.
SPOWER/ GPIO7
I/O This function differs depending on the type of memory being ac cessed.
<When accessing DRAM (EDO t ype)>
This is a general-purpose I/O port .
<When accessing SDRAM>
This is the SDRAM's power supply control signal.
R
4121.
(2) Clock interface signals
Signal I/O Function RTCX1 I This is t he 32.768-kHz oscillator’s input pin. It is connected to one side of a cry stal resonator. RTCX2 O This is the 32.768-kHz oscillator’s output pin. It is connected t o one s i de of a crystal resonator. CLKX1 I This is the 18.432-MHz oscillator’s input pin. It is connected to one side of a cry stal resonator. CLKX2 O This is the 18.432-MHz oscillator’s output pin. It is connected t o one s i de of a crystal resonator. FIRCLK I This is the 48-MHz clock input pi n. Fix this at high level when FIR is not used.
10
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121
(3) Battery monitor interface signals
Signal I/O Function
BATTINH/ BATTINT#
I This functi on di ffers depending on how the MPOWER signal i s set.
<When MPOWER signal = 0> BATTINH function
This signal enables/prohibits activation due to power-on. 1 : Enable activation
0 : Prohibit activat i on <When MPOWER signal = 1> BATTINT# function
This is an interrupt signal t hat is output when remaining power is low duri ng norm al operations. The
external agent checks the remaining battery power. Activate the signal at this pin if v ol tage sufficient
for operations cannot be supplied.
(4) Initialization interface signals
Signal I/O Function MPOWER O T hi s signal indicates the VR4121 is operating. This signal i s i nactive during Hibernate mode. POWERON O This signal i ndi c ates the VR4121 is ready to operate. It becomes active when a power-on fact or i s
detected and becomes inact i ve when the BATTINH/BATTINT# s i gnal check operation is completed. POWER I This is a VR4121 activation signal. RSTSW# I This is a VR4121 reset signal. RTCRST# I T hi s signal resets RTC. When power is first supplied to a device, the external agent must as sert the
signal at this pin for about 2 s.
Data Sheet U14691EJ1V0DS00
11
µµµµ
PD30121
(5) RS-232C interface signals
Signal I/O Function RxD I This is a rec ei ve data signal. It is used when the RS-232C controller sends s eri al data to the VR4121. CTS# I This is a transmit enable signal. Assert this signal when the RS-232C controller is ready to receive
transmission of seri al data.
DCD#/ GPIO15
DSR# I This is the data set ready signal. Ass ert this signal when the RS-232C cont rol l er i s ready to
TxD/ CLKSEL2,
RTS#/ CLKSEL1,
DTR#/ CLKSEL0
I This is a carri er det ection signal. Assert this signal when valid s eri al dat a i s being received. It is al so
R
used when detecting a power-on factor for the V
4121. When this pin is not used for DCD# signal, this pin can be used as an i nterrupt detection functi on for the GIU unit.
R
receive/transmit serial data between the controller and t he V
4121.
I/O This function differs depending on the operating status.
<During normal operation (output)>
Signals used for serial c om munication
TxD signal :
R
This is a transmit dat a signal. It is used when the V
4121 sends serial data to the RS -232C
controller. RTS# signal :
R
This is a transmit reques t signal. This signal is asserted when the V
4121 is ready to receive seri al
data from the RS-232C controller. DTR# signal :
R
This is a terminal equipment ready signal. This signal is asserted when the V
4121 is ready to
transmit or receive seri al data.
<When RTC reset (input)>
Signals (CLKSEL (2:0) signal) used to set the CPU core operation frequency, BUSCLK si gnal frequency, and internal bus c l ock frequency. These signal s are sampled when the RTCRST# signal changes from low level to hi gh l ev el . The relationships between the
CLKSEL (2:0) signal setting and each cl ock frequency are shown below.
Notes 1.
12
CLKSEL
(2:0)
signal
Note 1
111
Note 2
110
Note 2
101
CPU core operation frequency
(PClock)
RFU RFU RFU RFU RFU RFU
168.5 MHz 28.1 MHz 56.2 MHz 28.1 MHz 7.0 MHz 7.0 MHz
147.5 MHz 29.5 MHz 59.0 MHz 29.5 MHz 7.4 MHz 7.4 MHz
SDRAM/SROM
operation frequency
(VTClock)
MIN. MAX.
BUSCLK
signal
frequency
(When TClock output)
BUSCLK
signal
requency (When 1/4 of TClock)
Interrupt
control
clock
frequency
(MasterOut)
100 131.1 MHz 32.8 MHz 65.5 MHz 32. 8 M Hz 8. 2 M Hz 8.2 MHz 011 118.0 MHz 29.5 MHz 59.0 MHz 29. 5 M Hz 7. 4 M Hz 7.4 MHz 010 98.3 MHz 32.8 MHz 65.5 MHz 32.8 MHz 8.2 MHz 8.2 MHz 001 90.7 MHz 30.2 MHz 60.5 MHz 30.2 MHz 7.6 MHz 7.6 MHz 000 78.6 MHz 26.2 MHz 52.4 MHz 26.2 MHz 6.6 MHz 6.6 MHz
Do not set CLKSEL (2:0) = 111. The settings CLKSEL (2:0) = 110 and 101 are only guaranteed for the 168 MHz model. Do not apply
2.
these settings to the 131 MHz model.
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121
(6) IrDA interface signals
Signal I/O Function
IRDIN I This is an IrDA serial data input signal. It is used when the VR4121 sends serial data to the I rDA
controller, for both FIR and SIR. If the IrDA control l er used is an HP product, however, t hi s signal should be used for only SIR.
FIRDIN#/SEL I/O This function differs according to the IrDA controller used.
<HP’s controller>
FIRDIN#: It is an FIR rec ei ve data input signal.
<TEMIC’s controller>
SEL: It is an output port for external FIR/SIR s witching.
<SHARP’s controller>
Use is prohibited.
IRDOUT# O This is the IrDA serial dat a output signal. It is us ed when the IrDA controller sends s eri al data from the
R
4121.
V
(7) Debug serial interface signals
Signal I/O Function
DDOUT/ GPIO44
DDIN/ GPIO45
DRTS#/ GPIO46
DCTS#/ GPIO47
O This is the debug serial data output signal. It is used when the VR4121 sends serial data to an ext ernal
debug serial controller. When this pin is not used for the DDOUT signal, it can be used as a general -purpose output port.
I/O This is the debug serial data i nput signal. It is used when an external debug serial data controller s ends
R
serial data to the V When this pin is not used for the DDIN signal, it can be used as a general-purpose output port.
O This is a transmission request s i gnal . The VR4121 asserts this si gnal before sending serial data.
When this pin is not used for the DRTS# signal, it can be used as a general-purpose output port.
I/O This is a transmit ac knowledge signal. The VR4121 asserts this si gnal when i t is ready to receive
transmitted serial dat a. When this pin is not used for the DCTS# signal, it can be used as a general-purpose output port.
4121.
(8) Keyboard interface signals
Signal I/O Function KPORT (0:7) I This is a keyboard scan data i nput signal. It is used to scan for pressed keys on t he keyboard. KSCAN (0:11)/
GPIO (32:43)
O These signal are used as keyboard scan data output signals and a general-purpose output port. The scan
line is set as acti ve when scanning for pressed key s on the keyboard. Signals that are not used f or K SCAN signals can be used as a general-purpos e output port.
(9) Audio interface signals
Signal I/O Function
AUDIOIN I This pin is the audio input signal. AUDIOOUT O This is an audi o output signal. Analog signals that have been converted via the on-chip 10-bit D/A
converter are output.
Data Sheet U14691EJ1V0DS00
13
µµµµ
PD30121
(10) Touch panel/general purpose A/D interface signals
Signal I/O Function
TPX (0:1) I/O This is an I /O signal that is used for the touch panel. It uses the voltage applied to the X coordinate and
the voltage input to the Y coordinate to detect which c oordi nates on the touch panel are being pressed.
TPY (0:1) I/O This is an I /O signal that is used for the touch panel. It uses the voltage applied to the Y coordinate and
the voltage input to the X coordinate to detect which c oordi nates on the touch panel are being pressed.
ADIN (0:2) I Thi s is a general-purpose A/D input si gnal .
(11) General-purpose I/O Signals
Signal I/O Function
GPIO (0:3) I/O These are maskable power-on f actors. After start-up, they are used as ordinary general-
purpose I/O ports. See
GPIO4/SRAS# I/O GPIO5/SCAS# I/O GPIO6/SYSDIR I/O GPIO7/SPOWER I/O GPIO8 I/O Thes e are general -purpose I/O ports. GPIO (9:12) I/O Thes e are m askable power-on factors. After start-up, they are used as ordinary general-
GPIO (13:14) I/O These are general -purpose I/O ports. GPIO (16:31)/DATA (16:31) I/O GPIO (32:43)/KSCAN (0:11) O GPIO44/DDOUT O GPIO45/DDIN I/O GPIO46/DRTS# O GPIO47/DCTS# I/O GPIO48/DBUS32 I/O GPIO49/SMODE1 I/O
(1) System bus interface signals
See
(1) System bus interface signals
See
(1) System bus interface signals
See
(1) System bus interface signals
purpose I/O ports.
See
(1) System bus interface signals
See
(8) Keyboard interface signals
See
(7) Debug serial interface signals
See
(7) Debug serial interface signals
See
(7) Debug serial interface signals
See
(7) Debug serial interface signals
See
(14) Initial setting signals
See
(14) Initial setting signals
. . . .
.
.
. . .
. . .
(12) HSP MODEM interface signals
Signal I/O Function IRING I RING si gnal detect signal. This pin bec om es active when the RING signal i s detected. ILCSENSE I Handset detect si gnal OFFHOOK O On-hook relay control signal MUTE O Modem speaker mut e control signal AFERST# O CODEC reset s i gnal SDI I Serial i nput signal from CODEC FS I Frame synchronization signal from CODEC SDO O Serial output signal to CODEC HSPSCLK I Operation clock input of modem interface block for CODEC TELCON O Handset relay c ontrol signal HC0 O CODEC control signal HSPMCLK O Clock output to CODEC OPD# O Use this pin for controlling power of CODEC and DAA. This signal is set as act i v e when the power
supply of CODEC and DAA is ON.
14
Data Sheet U14691EJ1V0DS00
(13) LED interface signal
(
)
Signal I/O Function
LEDOUT# O This is an output signal for lighting LEDs.
(14) Initial setting signals
Signal Name I/O Function
µµµµ
PD30121
DBUS32/ GPIO48
SMODE1/ GPIO49
SMODE2 I
I/O
I/O
The function differs depending on the operating status. <During normal operation (output)>
This can be used as a general-purpose output port.
<After an RTC reset (input)>
This is the switchi ng signal for the data bus width. Thi s signal is sampled at 1RTC c l oc k cycle after the RTCRST# signal changes f rom l ow l evel to high level.
1: The data bus has a 32-bit width. 0: The data bus has a 16-bit width.
The function differs depending on the operating status. <During normal operation (output)>
This can be used as a general-purpose output port.
< After an RTC reset (input)>
This is a switching s i gnal for the memory being used. It i s used in combination with t he SMODE2 signal. This s i gnal i s sampled at 1RTC clock cycle after the RTCRST# signal changes from low level to hi gh l ev el .
This a switching signal for the memory being used. It i s used in combination with t he S MODE1 signal. This signal is sampled when the RTCRST# signal changes from low level to high level. The relation between the SMODE (2:1) s i gnal and the memory being used is shown below.
SMODE (2:1) signal Used Memory
11
10
01
00
ROM: SROM RAM: SDRAM ROM: Flash memory, PageROM , ordinary ROM RAM: SDRAM ROM (boot bank): Flash memory, PageROM, ordinary ROM ROM (except boot bank): SROM RAM: SDRAM ROM: Flash memory, PageROM , ordinary ROM RAM: DRAM
EDO type
MIPS16EN I
This pin enables the use of MI PS16 instructions. Thi s signal is sampled at 1RTC clock cycle after the RTCRST# signal changes from l ow l evel to high level.
1: Enables the use of MI P S16 instructions. 0: Disables the use of MIPS16 instructions .
Data Sheet U14691EJ1V0DS00
15
µµµµ
PD30121
(15) Dedicated VDD and GND signals
Signal Name Power-Supply System Function VDDP 2.5 V Dedicated VDD for the PLL analog unit GNDP 2.5 V Dedicated GND for the PLL analog unit VDDPD 2.5 V Dedicated VDD for the PLL digital unit. I ts function is identi cal to VDD2. GNDPD 2.5 V Dedicated GND for the PLL digital unit. Its function is identic al to GND2.
DD
CV CGND 3.3 V Dedicated GND for the oscillator
DD
DV
DGND 3.3 V Dedi cated GND for D/A converter. The voltage applied to this pin
DD
AV
AGND 3.3 V Dedicated GND for the A/D converter. The volt age appl i ed to this pin
DD
PIUV PIUGND 3.3 V Dedicated GND for touch-sensitive panel int erface VDD2 2.5 V Normal 2.5-V system V GND2 2.5 V Normal 2.5-V system GND VDD3 3.3 V Normal 3.3-V system V GND3 3.3 V Normal 3.3-V system GND
3.3 V Dedicated VDD for the oscillator
3.3 V Dedicated VDD for the D/A converter. The voltage applied to this pin becomes the maximum of the analog output of AUDIOOUT signal.
becomes the minimum of the analog output of AUDIOOUT signal.
3.3 V Dedicated VDD for the A/D converter. The voltage applied to this pin becomes the maximum v ol tage that can be detected by t he A /D interface signals (8 lines).
becomes the minimum v ol t age that can be detected by the A/D interface signals (8 lines).
3.3 V Dedicated VDD for touch-sensitiv e panel i nterface
DD
DD
Caution The VR4121 has two types of power supplies. There are no restrictions as to the sequence in which
these power supplies are applied. However, do not apply one type of power for more than one second while the other power supply is not applied.
16
Data Sheet U14691EJ1V0DS00

1.2 Pin Status in Specific Status

Pin Name After Reset by
the RTC Reset
ADD25/SCLK 0
ADD (0:24) 0 0
DATA (0:15) 0 0
DATA (16:31)/
GPIO (16:31)
LCDCS# Hi -Z 1 1 Hi-Z 1
RD# Hi-Z 1 1 Hi-Z Hi-Z
WR# Hi-Z 1 1 Hi-Z Hi-Z
LCDRDY ROMCS (2:3)# Hi-Z ROMCS (0:1)# Hi-Z 1 1 Hi-Z 1
UUCAS#/MRAS3#
ULCAS#/MRAS2#
MRAS (0:1)# Hi-Z 1 1 1 Hi-Z
UCAS# 0
LCAS# 0
BUSCLK 0 0
0/
Hi-Z
−− − − −
Note 4 Note 5 Note 6 Note 4 Note 5 Note 6
After Reset by the Deadman’s Switch or RSTSW# Signal
Note 1 Note 2
0/
Hi-Z
Note 3 Note 3 Note 3 Note 3
Note 7 Note 7
In the Suspend
Mode
Note 2 Note 2 Note 2
00Hi-Z 00Hi-Z
Note 2
In the Hibernate
Mode or Shut Down
by the HAL Timer
0Hi-Z 0Hi-Z 0Hi-Z 0/
Hi-Z
0Hi-Z 0Hi-Z
0
µµµµ
PD30121
During a Bus
Hold
Hi-Z/
Note 2
Note 8
(1/4)
Notes 1.
Remark
This differs depending on the setting of the SCLK bit in the SDRAMMODEREG register.
When SCLK bit has a value of "1": outputs clock. When SCLK bit has a value of "0": low level is output.
Maintains the state of the previous Full-speed Mode.
2.
When used as the chip select for the ROM or extended ROM, this is the same as ROMCS (0:1)# pins.
3.
When used as the RAS for the extended DRAM, this is the same as MRAS (0:1)# pins. When DBUS32 signal = 1, this becomes the high impedance state.
4.
When DBUS32 signal = 0, the high level is output. When DBUS32 signal = 1: See
5.
Note 7
below. When DBUS32 signal = 0: high level is output. When DBUS32 signal = 1: low level is output.
6.
When DBUS32 signal = 0: high level is output. Reset by the RSTSW# signal: The pin outputs a low level. (Self refresh)
7.
Reset by the Deadman’s switch: The pin outputs a high level. Bus hold from the Suspend Mode: The state of the previous Full-speed Mode is maintained.
8.
Bus hold from Full-speed Mode or Standby Mode: Outputs clocks.
0: low level, 1: high level, Hi-Z: high impedance
Data Sheet U14691EJ1V0DS00
17
Pin Name After Reset by
the RTC Reset
SHB# Hi-Z 1 1 Hi-Z Hi-Z
IOR# Hi-Z 1 1 Hi -Z Hi-Z
IOW# Hi-Z 1 1 Hi-Z Hi-Z
MEMR# Hi-Z 1 1 Hi-Z Hi-Z
MEMW# Hi-Z 1 1 Hi-Z Hi-Z
ZWS# RSTOUT Hi-Z 1 0 Hi-Z IOCS16#
MEMCS16#
IOCHRDY
HLDRQ#
HLDACK# Hi-Z 1
CKE 0 RTCX1 RTCX2 CLKX1 CLKX2
FIRCLK
BATTINH/ BATTINT#
MPOWER 0 1 1 0 1
POWERON 0 0 0 0 0
POWER
RSTSW#
RTCRST#
RxD
TxD/CLKSEL2
RTS#/CLKSEL1
CTS#
DCD#/GPIO15
DTR#/CLKSEL0
DSR#
IRDIN
IRDOUT# 0 0 0 0
FIRDIN#/SEL Hi-Z Hi-Z
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
−− − − −
Note 4
Hi-Z
Note 4
Hi-Z
−− − − −
−− − − −
Note 4
Hi-Z
−− − − −
−− − − −
After Reset by the
Deadman’s Switch
or RSTSW# Signal
Note 2 Note 3 Note 3
111 111
111
In the Suspend
Mode
Note 1
Note 3
In the Hibernate
Mode or Shut Down
by the HAL Timer
Hi-Z
Hi-Z
During a Bus
µµµµ
PD30121
(2/4)
Hold
Note 1
Note 1
Hi-Z
Note 1 Note 1
Note 1
Note 1 Note 3
Notes 1.
Remark
18
Normal operation proceeds. This differs depending on the setting of the SCLK bit in the SDRAMMODEREG register.
2.
When SCLK bit has a value of "1": outputs clock. When SCLK bit has a value of "0": low level is output.
Maintains the state of the previous Full-speed Mode.
3.
Specify the input data level using a high-resistance pull up or pull down resistor.
4.
0: low level, 1: high level, Hi-Z: high impedance
Data Sheet U14691EJ1V0DS00
Pin Name After Reset by
the RTC Reset
After Reset by the Deadman’s Switch or RSTSW# Signal
Note 1
DDIN
DDOUT
DRTS#
DCTS#
KPORT (0:7)
KSCAN (0:11)
GPIO (32:43)
GPIO45
GPIO44
Note 1
GPIO46
Note 1
GPIO47
Note 1
/
/
/
/
Note 1
/
Hi-Z
1/
1
1/
1
/
Hi-Z
−− − − −
/
Hi-Z/
Hi-Z
AUDIOOUT 0 0
TPX (0:1) 1 1 TPY (0:1) Hi-Z Hi-Z
ADIN (0:2)
AUDIOIN
−− − − −
−− − − −
GPIO (0:3) Hi-Z Hi-Z
SRAS#/
Hi-Z
GPIO4
SCAS#/
Hi-Z
GPIO5
SYSDIR/
GPIO6
SPOWER/
GPIO7
0/
Hi-Z
0/
Hi-Z
GPIO (8:14) Hi-Z Hi-Z
/
Note 2
1/
Note 2
1/
Note 2
/
Note 2
Hi-Z/
Note 2
Note 5
Hi-Z
Note 5
Hi-Z
0/
Hi-Z
1/
Hi-Z
µµµµ
PD30121
(3/4)
In the Suspend
Mode
/
Note 2
1/
Note 2
1/
Note 2
/
Note 2
/
Note 2
Note 2 Note 2 Note 2 Note 2
Note 2
/
0/
Note 2
/
0/
Note 2
0/
Note 2
1/
Note 2 Note 2
In the Hibernate
Mode or Shut Down
by the HAL Timer
/
Note 2
1/
Note 2
1/
Note 2
/
Note 2
Hi-Z/
Note 2
0 1
Hi-Z
Note 4
Hi-Z
0/
Hi-Z
0/
Hi-Z
0/
Hi-Z
1/
Hi-Z
Note 4
Hi-Z
During a Bus
Hold
/
Note 2
1/
Note 2
1/
Note 2
/
Note 2
Note 3
Note 3 Note 3 Note 3
Note 3
Hi-Z/
Note 3
Hi-Z/
Note 3
Hi-Z/
Note 3
1/
Note 3 Note 3
Notes 1.
Remark
Software can switch the function pin and the output port. The state of the previous Full-speed Mode is maintained.
2.
Normal operation proceeds.
3.
During hibernate mode, the pull-up/pull-down setting is retained.
4.
When reset by RSTSW# signal: low level output (self refresh)
5.
When reset by deadman's switch: high level output
0: low level, 1: high level, Hi-Z: high impedance
Data Sheet U14691EJ1V0DS00
19
Pin Name After Reset by
the RTC Reset
IRING
ILCSENSE
OFFHOOK
Note 1
MUTE
AFERST#
Note 1
Note 1
−− − − −
−− − − −
Hi-Z Hi-Z Hi-Z Hi-Z
00
After Reset by the
Deadman’s Switch
or RSTSW# Signal
In the Suspend
Mode
Note 2 Note 2 Note 2
In the Hibernate
Mode or Shut Down
by the HAL Timer
Hi-Z Hi-Z
0
µµµµ
PD30121
During a Bus
Hold
Note 2 Note 2 Note 2
(4/4)
SDI
FS
SDO 0 0
HSPSCLK
HC0
Note 1
Note 1
Note 1
TELCON
HSPMCLK
OPD# 0 0
LEDOUT# 1
DBUS32/
Note 4
GPIO48
−− − − −
−− − − −
Note 2
0
−− − − −
Hi-Z Hi-Z
00 00
Note 2 Note 2 Note 2 Note 2
Hi-Z
0 0 0
Note 3 Note 3 Note 3 Note 3
Hi-Z/ Hi-Z
Hi-Z/
Note 2
Note 2
Note 2
/
Hi-Z/
Note 2
MIPS16EN Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z
SMODE1/
GPIO49
SMODE2
Notes 1.
Note 4
When initializing, always set BSC bit to 1 in the HSPINT register (0x0C00 0020). The state of the previous Full-speed Mode is maintained.
2.
Normal operation proceeds.
3.
After the RTC reset is released, this functions as an output port.
4.
Specify the input data level using a high-resistance pull up or pull down resistor.
5.
Hi-Z/
Hi-Z
Note 5
Hi-Z
Note 2
/
Note 2/
Note 2
Hi-Z
Note 2
/
−− − − −
Note 2
Note 2 Note 2 Note 2 Note 2
Note 2
Note 2
Note 2/
Note 2
/
Remark
20
0: low level, 1: high level, Hi-Z: high impedance
Data Sheet U14691EJ1V0DS00
µµµµ
PD30121

1.3 Recommended Connection and I/O Circuit Types

Pin Name Internal
Processing
ADD25/SCLK Slew rate buff er ADD (0:24) Slew rate buffer DATA (0:15) DATA (16:31)/
GPIO (16:31) LCDCS# Slew rate buffer RD# Slew rate buffer WR# Slew rate buffer LCDRDY ROMCS (2:3)# Slew rate buffer ROMCS (0:1)# Slew rate buffer UUCAS#/MRAS3# Slew rate buffer ULCAS#/MRAS2# Slew rate buffer MRAS (0:1)# Slew rate buffer UCAS# Slew rate buffer LCAS# Slew rate buffer BUSCLK Slew rate buffer SHB# Slew rate buffer IOR# Slew rate buffer IOW# Slew rate buffer MEMR# Slew rate buffer MEMW# Slew rate buffer ZWS# RSTOUT Slew rate buffer Pull up 40 pF A Leave open IOCS16# MEMCS16# IOCHRDY
−−
Note 5 Note 3
Note 5 Note 3 Note 5 Note 3 Note 5 Note 3
External
Processing
Note 1
Note 2 Note 2 Note 3 Note 4
Note 2 Note 2 Note 2 Note 2 Note 2
Note 2 Note 2 Note 2 Note 2 Note 2
Drive
Capability
120 pF A 120 pF A
40 pF A 40 pF A Connect to VDD or
40 pF A Leav e open 120 pF A Leave open 120 pF A Leave open
40 pF A Leav e open
40 pF A Leav e open 120 pF A Leave open 120 pF A Leave open
40 pF A Leav e open 120 pF A Leave open 120 pF A Leave open
40 pF A Leav e open
40 pF A Leav e open
40 pF A Leav e open
40 pF A Leav e open
40 pF A Leav e open
40 pF A Leav e open
I/O Circuit
Type
A Connect to GND
A Connect to V
A Connect to V A Connect to V A Connect to GND
Recommended
Connection of
Unused Pins
GND via resistor
(1/3)
DD
DD
DD
Notes 1.
2.
3.
4.
5.
Remarks 1.
R
Pins DATA (16:31)/GPIO (16:31) in the V
4121 function as GPIO (16:31) signals when using the 16-bit data bus. When using these pins as GPIO (16:31) signals, pull them up or pull down so as not to input an intermediate-level signal. When the bus hold function is used, external pull-up is recommended for the VR4121. Do not input an intermediate-level signal. When used as the RAS signal of extended DRAM, external pull-up is recommended for the VR4121. When the MPOWER pin outputs the low-level, intermediate-level input is enabled.
No specification (−) in the External Processing column indicates that the external processing is unnecessary. No specification (−) in the Recommended Connection of Unused Pins column indicates that the pin
2.
is always connected.
Data Sheet U14691EJ1V0DS00
21
Pin Name Internal
Processing
HLDRQ# HLDACK# Slew rate buffer CKE RTCX1 RTCX2 CLKX1 CLKX2 FIRCLK BATTINH/
BATTINT# MPOWER POWERON POWER Schmitt input RSTSW# Schmitt input RTCRST# Schmit t i nput RxD TxD/CLKSEL2
RTS#/CLKSEL1
CTS# DCD#/GPIO15 Schmitt i nput Pull up
DTR#/CLKSEL0
DSR# IRDIN
IRDOUT# FIRDIN#/SEL
DDIN/GPIO45
DDOUT/GPIO44 DRTS#/GPIO46 DCTS#/GPIO47
Note
−−
Schmitt input
−−
−−
−−−
−−−
−−−
−−
−−
−−
−−
−−
External
Processing
Pull up
Resonator Resonator Resonator Resonator Resonator
−−
−−
−−
−−
Pull up/
Pull down
Pull up/
Pull down
Pull up/
Pull down
Pull up
Pull up/
Pull down
µµµµ
PD30121
(2/3)
Drive
Capability
40 pF A Leav e open
120 pF A Leave open
−−−
−−
−−−
−−
40 pF A Leav e open 40 pF A Leav e open
40 pF A
40 pF A
40 pF A
40 pF A Leav e open 40 pF A Connec t to VDD via
40 pF A Connect to VDD or
40 pF A Leav e open 40 pF A Leav e open 40 pF A Connect to VDD or
I/O Circuit
Type
A
A B
B B B A Connect to GND
A Connect to V B Connect t o VDD or
A Connect to V A Connect t o VDD or
Recommended
Connection of
Unused Pins
Directly connect to V
Leave open
Leave open Directly connect to V Directly connect to V
GND
GND
resistor
GND via resistor
GND via resistor
DD
DD
DD
DD
DD
Note
Remarks 1.
22
Intermediate-level input is enabled when the MPOWER pin is set for low-level output.
No specification (−) in the External Processing column indicates that the external processing is unnecessary. No specification (−) in the Recommended Connection of Unused Pins column indicates that the pin
2.
is always connected.
Data Sheet U14691EJ1V0DS00
Pin Name Internal
Processing
KPORT (0:7) Schmitt input,
Pull down
KSCAN (0:11)/ GPIO (32:43)
AUDIOOUT TPX (0:1) TPY1 TPY0 ADIN (0:2) AUDIOIN GPIO (0:3)
SRAS#/GPIO4 SCAS#/GPIO5 SYSDIR/GPIO6 SPOWER/GPIO7 GPIO (8:14)
IRING Schmitt input Pull down ILCSENSE OFFHOOK MUTE AFERST# SDI FS SDO HSPSCLK TELCON HC0 HSPMCLK OPD# LEDOUT# DBUS32/GPIO48 MIPS16EN SMODE1/GPIO49 SMODE2
Schmitt input,
Schmitt input, Schmitt input, Schmitt input, Schmitt input, Schmitt input,
−−
−−
−−
−−
−−−
−−−
Note 2 Note 2
Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2
−−
−−
−−
−−
−−
−−
−−
−−
−−
External
Processing
−−
Note 1
Pull down
Pull up/Pull down Pull up/Pull down
Note 3
Pull up/Pull down 40 pF A Pull up/Pull down 40 pF A Pull up/Pull down Pull up/Pull down
µµµµ
PD30121
Drive
Capability
40 pF A Leav e open
120 pF or more 120 pF or more 120 pF or more
40 pF B Connect to VDD or
40 pF B 40 pF B 40 pF B Leav e open 40 pF B 40 pF B Connect to VDD or
40 pF A Leav e open 40 pF A Leav e open 40 pF A Leav e open
40 pF A Leav e open
40 pF A Leav e open 40 pF A Leav e open 40 pF A Leav e open 40 pF A Leav e open 40 pF A Leav e open
I/O Circuit
Type
B Leave open
F Leave open C Leave open D Leave open C Leave open E Leave open E Leave open
B Connect to GND A Connect to GND
A Connect to GND A Connect to GND
A Connect to GND
A A
Recommended
Connection of
Unused Pin
GND via resistor Connect to VDD or GND Connect to VDD or GND
Connect to VDD or GND
GND via resistor
(3/3)
Notes 1.
Connect an operation amplifier which has high-impedance input characteristics, since the output level of AUDIOOUT pin varies according to the external impedance. If internal pull-up or pull-down resistors are used in GPIO (0:3), SRAS#/GPIO4, SCAS#/GPIO5,
2.
SYSDIR/GPIO6, SPOWER/GPIO7, GPIO (8:14) pins switch between pull up, pull down, and open by software. If an internal pull-up or pull-down resistor is not used, then provide an external pull-up or pull-down resistor. Input a synchronous clock from CODEC.
3.
Data Sheet U14691EJ1V0DS00
23
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