Motorola APX 1000 Detailed Service Manual page 273

Troubleshooting Tables: List of Board and IC Signals
Signal Name
mortable Specifies Mobile or
Portable hardware
gcai_gpio3 GPIO3
gcai_gpio4 GPIO4
bluetooth_ptt PTT signal from Blue-
tooth AVR
f2_timer_input_ca "Receives one of
pture three timing signals
mux'ed through
CPLD - Abacus Sync,
DMCS, Ramp DAC
Trigger.
bt_avr_status AVR status read by
OMAP
enc_wakeup MACE encryption
wakeup
enc_reset MACE encryption
reset
5V_pwm_en Forces SW5 to PWM
gcai_gpio2 GPIO2
gcai_gpio1 GPIO1
gcai_gpio0 GPIO0
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_ctrl Select for data or
control on top dis-
play(Not Used in
WWP)
top_display_reset Reset for color front
display( Not Used in
WWP)
Table 7-18. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
W13
AA15
R14
Y5
"P20
P18
A6
B6
P14
C13
C11
M7
C6
C5
P12
M12
SW Initialized
Active
State
Direction
0=Porta- Input
ble
Input
Input
0=Pressed Input
Input
Input
1 Output
0 I/O
1 Output
Input
Input
Input
1=500mA Output
1=Factory Output
Test
1=data Output
0 Output
HW Reset
*
PU State Direction
None 0 Output
None 0 Output
None Input
Pul- Input
lup
Pull- Input
down
Pul- Input
lup
1 Output
Pul- 1 I/O
lup
Pul- 0 Output
lup
None Input
None Input
None Input
0 Output
Pul- 0 Output
lup
0 Output
1 Output
7-47
*
PU
or
PD
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pul-
lup
Pul-
lup
None
None
None
Pul-
lup