Chapter 4 AMIBIOS POST
72
Step 10 Install Adapter Cards,
Continued
16-Bit ISA Extension Pinout
The following 16-bit pins are an extension of the 8-bit board layout and are used in conjunction with the 8-bit board
standard pins.
Pin
Use
Pin
Use
C1
SBHE-
D1
MEMCS16-
C2
LA23
D5
IOCS16-
C3
LA22
D3
IRQ10
C4
LA21
D4
IRQ11
C5
LA20
D5
IRQ12
C6
LA19
D6
IRQ13
C7
LA18
D7
IRQ14
C8
LA17
D8
DACK0-
C9
MEMR-
D9
DREQ0
C10
MEMW-
D10
DACK5-
C11
SD08
D11
DREQ5
C12
SD09
D12
DACK6-
C13
SD10
D13
DREQ6
C14
SD11
D14
DACK7-
C15
SD12
D15
DREQ7
C16
SD13
D16
+5
C17
SD14
D17
MASTER-
C18
SD15
D18
GND
32-bit EISA Slot Pinout
The following table identifies the pin values for the pins on each of the eight rows of pins on an EISA adapter card. 8- and
16-bit ISA signals are shown. Pins labeled
xxxxxx
are generally used to isolate signals on the bus from adjacent
power pins. Rows A, B, C, and D are upper (ISA) contacts. Rows E, F, G, and H are lower (EISA) contacts. The
following table lists the pinouts for Rows F, B, E, and A.