STPCC4 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STPCC4

X86 Core PC Compatible Information Appliance System-on-Chip

STMicroelectronics 

PIN DESCRIPTION

Signal Name

ISA INTERFACE

ISA_CLK

ISA_CLK2X

OSC14M

LA[23:17]

SA[19:0]

SD[15:0]

ALE

MEMR#, MEMW#

SMEMR#, SMEMW#

IOR#, IOW#

MCS16#, IOCS16#

BHE#

ZWS#

REF#

MASTER#

AEN

IOCHCK#

IOCHRDY

ISAOE#

GPIOCS#

IRQ_MUX[3:0]

DREQ_MUX[1:0]

DACK_ENC[2:0]

TC

RTCAS

RMRTCCS#

KBCS#

RTCRW#

RTCDS#

LOCAL BUS INTERFACE

PA[23:0]

PD[15:0]

PRD1#,PRD0#

PWR1#,PWR0#

PRDY

FCS1#, FCS0#

IOCS#[3:0]

Table 2-2. Definition of Signal Pins

Dir

Buffer Type2

Description

Qty

O BT8TRP_TC

ISA Clock Output

Multiplexer Select Line For IPC

1

O BT8TRP_TC

ISA Clock x2 Output

Multiplexer Select Line For IPC

1

O BD8STRP_FT

ISA bus synchronisation clock

1

O BD8STRUP_FT

Unlatched Address

7

I/O BD8STRUP_FT

Latched Address

20

I/O BD8STRP_FT

Data Bus

16

O BD4STRP_FT

Address Latch Enable

1

I/O BD8STRUP_FT

Memory Read and Write

2

O BD8STRP_FT

System MemoryRead and Write

2

I/O BD8STRUP_FT

I/O Read and Write

2

I BD4STRUP_FT

Memory and I/O ChipSelect16

2

O BD8STRUP_FT

System Bus High Enable

1

I BD4STRP_FT

Zero Wait State

1

O BD8STRP_FT

Refresh Cycle.

1

I BD4STRUP_FT

Add On Card Owns Bus

1

O BD8STRUP_FT

Address Enable

1

I BD4STRUP_FT

I/O Channel Check.

1

I/O BD8STRUP_FT

I/O Channel Read

1

O BD4STRP_FT

ISA/IDE Selection

1

I/O BD4STRP_FT

General Purpose Chip Select

1

I BD4STRP_FT

Time-Multiplexed Interrupt Request

4

I BD4STRP_FT

Time-Multiplexed DMA Request

2

O BD4STRP_FT

Encoded DMA Acknowledge

3

O BD4STRP_FT

ISA Terminal Count

1

O BD4STRP_FT

Real Time Clock Address Strobe

1

I/O BD4STRP_FT

ROM/RTC Chip Select

1

I/O BD4STRP_FT

Keyboard Chip Select

1

I/O BD4STRP_FT

RTC Read/Write

1

I/O BD4STRP_FT

RTC Data Strobe

1

O BD4STRP_FT

Address Bus

24

I/O BD8STRP_FT

Data Bus

16

O BD4STRUP_FT

Peripheral Read Control

2

O BD4STRUP_FT

Peripheral Write Control

2

I BD8STRUP_FT

Data Ready

1

O BD4STRP_FT

Flash Chip Select

2

O BD8STRUP_FT

I/O Chip Select

4

IDE CONTROLLER

DA[2:0]

O BD8STRUP_FT

Address Bus

3

DD[15:0]

I/O BD8STRUP_FT

Data Bus

16

Note1: These pins are must be connected to the 2.5 V power supply. They must not be connected to the 3.3 V supply.

Note2: See Table 2-3 for buffer type descriptions

Release 1.5 - January 29, 2002

13/93

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