参数资料
型号: STPCC0390BTC3
厂商: STMICROELECTRONICS
元件分类: 外设及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA388
封装: PLASTIC, BGA-388
文件页数: 3/59页
文件大小: 932K
代理商: STPCC0390BTC3
PIN DESCRIPTION
Issue 1.1 - October 16, 2000
11/59
SA[19:0]
I/O
Latched Address
20
SD[15:0]2
I/O
Data Bus
16
ALE2
O
Address Latch Enable
1
MEMR#2, MEMW#2
I/O
Memory Read and Memory Write
2
SMEMR#2, SMEMW#2
O
System Memory Read and Memory Write
2
IOR#2, IOW#2
I/O
I/O Read and Write
2
MCS16#2, IOCS16#2
I
Memory/IO Chip Select16
2
BHE#2
O
System Bus High Enable
1
ZWS#2
I
Zero Wait State
1
REF#2
O
Refresh Cycle.
1
MASTER#2
I
Add On Card Owns Bus
1
AEN2
O
Address Enable
1
IOCHCK#2
I
I/O Channel Check.
1
IOCHRDY2
I/O
I/O Channel Ready (ISA) - Busy/Ready (IDE)
1
ISAOE#2
O
ISA/IDE Selection
1
GPIOCS#2
I/O
General Purpose Chip Select
1
IRQ_MUX[3:0]2
I
Time-Multiplexed Interrupt Request
4
DREQ_MUX[1:0]2
I
Time-Multiplexed DMA Request
2
DACK_ENC[2:0]2
O
Encoded DMA Acknowledge
3
TC2
O
ISA Terminal Count
1
RTCAS#2
O
Real Time Clock Address Strobe
1
RMRTCCS#2
I/O
ROM/RTC Chip Select
1
KBCS#2
I/O
Keyboard Chip Select
1
RTCRW#2
I/O
RTC Read/Write
1
RTCDS#2
I/O
RTC Data Strobe
1
LOCAL BUS
PA[21:0]
O
Address Bus
22
PD[15:0]
I/O
Data Bus
16
PRD1#,PRD0#
O
Peripheral Read Control
2
PWR1#,PWR0#
O
Peripheral Write Control
2
PRDY#
I
Data Ready
1
FCS1#, FCS0#
O
Flash Chip Select
2
IOCS#[3:0]
O
I/O Chip Select
4
IDE CONTROL
DA[2:0]
O
Address Bus
3
DD[15:0]
I/O
Data Bus
16
PCS3#,PCS1#,SCS3#,SCS1#
O
Primary & Secondary Chip Selects
4
DIORDY
O
Data I/O Ready
1
PIRQ2, SIRQ2
I
Primary & Secondary Interrupt Request
2
PDRQ2, SDRQ2
I
Primary & Secondary DMA Request
2
PDACK#2, SDACK#2
O
Primary & Secondary DMA Acknowledge
2
PDIOR#2, SDIOR#2
O
Primary & Secondary I/O Channel Read
2
PDIOW#2, SDIOW#2
O
Primary & Secondary I/O Channel Write
2
Table 2-2. Definition of Signal Pins
Signal Name
Dir
Description
Qty
Note1; These pins must be connected to the 2.5Vpower supply. They must not be connected to the 3.45V supply.
Note2; Denotes that the pin is V5T (see Section 4 )
Note 3; see Table 2-5 for the detail of individual V5T signals
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