Mesa 4I67 User manual

MESA 4I67 INFO SHEET
The 4I67 is a PC/104-PLUS to dual Mini-PCI III adapter. The
4I67 allows two Mini PCI type III cards to beconnectedto a PC/104-
PLUS system. Since the 4I67 uses a PCI-PCI bridge, it only uses
one PC/104-PLUS slot.

SETUP:
There are only 2 option jumpers on the 4I67, W1 and W2.
These select the PC/104-PLUS "SLOT" number that the 4I67
occupies.
W1 W2 PC/104-PLUS SLOT
DOWN DOWN 0
DOWN UP 1
UP DOWN 2
UP UP 3 (Only newer CPUs support slot 3)
The 4I67 has two independent local 3.3V power regulators
(U6,U7), one for each Mini-PCI card. Maximum current supplied by
the regulator is 1A per Mini-PCI card.
The 4I67 has 4 status LEDS and a connector (P1) to allow remote
LEDS to be connected. P1 is a 10 pin 2mm connector. P1 pin-out is
as follows:
PIN
1 Green0+
2 Green0-
3 Yellow0+
4 Yellow0-
5 Green1+
6 Green1-
7 Yellow1+
8 Yellow1-
9 GND
10 3.3V
External LEDS connected to P1 must have series current limiting
resistors.

INTERRUPT ROUTING:
The 4I67 follows the PCI standard for routing of interrupts across
PCI bridges:
Mini-PCI slot 0 (top of card) interrupt routing:
PC/104-PLUS SLOT# PRIMARY SECONDARY
0 INTA INTB
1 INTB INTC
2 INTC INTD
3 INTD INTA
Mini-PCI slot 1 (bottom of card) interrupt routing:
PC/104-PLUS SLOT# PRIMARY SECONDARY
0 INTB INTC
1 INTC INTD
2 INTD INTA
3 INTA INTB
NotethatthesecondaryinterruptisonlyusedonMiniPCIcards
with multiple PCI functions per card.