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Step 11 Install Adapter Cards,
16-Bit ISA Extension Pinout
The following 16-bit pins are an extension of the 8-bit adapter card layout and are used in conjunction with the
standard 8-bit pins.
PCI Local Bus Pinout
The first three expansion slots in the Excalibur PCI Pentium motherboard are for PCI Local Bus adapter cards, as
shown on the graphic on page 19. The PCI bus master slots are P16 (Slot1) and P17 (Slot2). The PCI slave expansion
slot is P18 (Slot3).
Chapter 4 Installation
56
Continued
Pin
Use
C1
SBHE-
C2
LA23
C3
LA22
C4
LA21
C5
LA20
C6
LA19
C7
LA18
C8
LA17
C9
MEMR-
C10
MEMW-
C11
SD08
C12
SD09
C13
SD10
C14
SD11
C15
SD12
C16
SD13
C17
SD14
C18
SD15
Pin
Use
D1
MEMCS16-
D2
IOCS16-
D3
IRQ10
D4
IRQ11
D5
IRQ12
D6
IRQ15
D7
IRQ14
D8
DACK0-
D9
DREQ0
D10
DACK5-
D11
DREQ5
D12
DACK6-
D13
DREQ6
D14
DACK7-
D15
DREQ7
D16
+5
D17
MASTER-
D18
GND
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