Specifications

Hardware Configuration
2–51
Pin
Signal
Name Function In/Out Current PU/PD/Ser
*
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
GND**
-MEMCS16
-IOCS16
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
-DACK0
DRQ0
-DACK5
DRQ5
-DACK6
DRQ6
-DACK7
DRQ7
+5V
-MASTER
GND
GND**
Ground
16-bit Mem Access
16-bit I/O Access
Interrupt Request 10
Interrupt Request 11
Interrupt Request 12
Interrupt Request 15
Interrupt Request 14
DMA Acknowledge 0
DMA Request 0
DMA Acknowledge 5
DMA Request 5
DMA Acknowledge 6
DMA Request 6
DMA Acknowledge 7
DMA Request 7
+5 Volt Power
Bus Master Assert
Ground
Ground
N/A
IN
IN
IN
IN
IN
IN
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
N/A
IN
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
6mA
N/A
6mA
N/A
6mA
N/A
6mA
N/A
N/A
N/A
N/A
N/A
330 PU
330 PU
10K PU
10K PU
10K PU
10K PU
10K PU
10K PU
10K PU
10K PU
10K PU
330 PU
* PU=pull up; PD=pull down; SER=resistance in series. All values in ohms.
** Added ground. Not needed with conventional expansion cards.
Table 2-38 AT Expansion Bus Connector, D0-D19 (P2)