Motorola APX 3000 Detailed Service Manual page 215

Troubleshooting Tables: List of Board and IC Signals
Signal Name
gcai_vbus_i_limit Current limit select for
GCAI VBUS
f2_paramp_mon Factory use to test F2
transmit timing. Allows
TX/RX signal to
appear on GCAI
GPIO3.
top_disp_data_ctr Select for data or con-
l trol on top display(Not
Used in WWP)
top_display_reset Reset for color front
display( Not Used in
WWP)
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
gps_shutdown Shutdown to GPS
rf_reset Reset to RF board
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
bt_usb_boot Bluetooth 'boot' signal
bt_avr_reset Bluetooth AVR32
Reset signal
key_fail_switch Enables keyload path
for MACE secure.
NC Not Used
NC Not Used
NC Not Used
Table 7-7. Overall GPIO pin functions (Continued)
Pin or
Description
Ball #
C6
C5
P12
M12
N13
M14
N14
D12
A8
B7
B8
C7
J2
M8
P8
M13
A12
M6
N11
K14
SW Initialized
Active State
Direction
1=500mA Output
1=Factory Output
Test
1=data Output
0 Output
Output
Output
Output
0 Output
0 Output
Output
Output
0 Output
Input
Input
0 Output
0 Output
1 Output
TBD Input
Input
Input
HW Reset
*
PU State Direction
0 Output
Pullup 0 Output
0 Output
1 Output
0 Output
0 Output
0 Output
0 Output
0 Output
0 Output
1 Output
None 1 Output
None Input
None Input
None Input
None Input
0 Output
Pullup Input
None Input
None Input
7-7
*
PU or
PD
Pullup
None
None
None
None
None
3
None