Motorola APX 1000 Detailed Service Manual page 865

Troubleshooting Tables: List of Board and IC Signals
Signal Name
gcai_gpio4 GPIO4
bluetooth_ptt PTT signal from Blue-
tooth AVR
f2_timer_input_c "Receives one of three
apture 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_ct Select for data or control
rl on top display(Not Used
in WWP)
top_display_rese Reset for color front dis-
t play( Not Used in WWP)
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
Unused and Unwired
OMAP Pin
gps_shutdown Shutdown to GPS
Table 7-10. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
R14
Y5
"P20
P18
A6
B6
P14
C13
C11
M7
C6
C5
P12
M12
N13
M14
N14
D12
SW Initialized
Active
State
Direction
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
Output
Output
Output
0 Output
HW Reset
*
PU State Direction
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
0 Output
0 Output
0 Output
0 Output
7-25
*
PU
or
PD
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pul-
lup
Pul-
lup
None
None
None
Pul-
lup