Utility Connector J16; Table 6-12. Utility Connector #1 (J16) Pin Assignments - Motorola MBX Series Installation And Use Manual

Table 6-11. 821/COMM Expansion Connector Pin Assignments
Pin Row A
33 BRCOMM#
34 BGCOMM#
35 RD/WR#
36 CLK

Utility Connector J16

A 20-pin dual-row header known as "Utility Connector #1" supplies the
interface between the MBX series embedded controller and external
devices such as status LEDs, Reset and Abort switches, and power sources.
The pin assignments for this utility connector are listed in the following
table.

Table 6-12. Utility Connector #1 (J16) Pin Assignments

Pin #
http://www.motorola.com/computer/literature
Row B
BDIP#
BURST#
FRAME_L
LOAD_L
Signal
1 +3.3V
3 +5V
5 ResetSwitch#
7 ETHTX LED#
9 ETHRX LED#
11 ETHCOL LED#
13 ETHTPI LED#
15 ETHTPP LED#
17 Battery Low#
19 MBX Bus Activity#
Utility Connector J16
Row C
A24 A25
A26 A27
A28 A29
A30 A31
Signal
−12V
−5V
Battery Plus
Battery Minus
Power Fail Sense#
Stop Interrupt#
GND
IDE LED#
Flash Programming#
PCI Bus Activity#
Row D
Pin #
2
4
6
8
10
12
14
16
18
20
6-21
6