Motorola APX 1000 Detailed Service Manual page 277

Troubleshooting Tables: List of Board and IC Signals
Signal Name
NC NC
NC NC
NC NC
NC NC
NC NC
NC NC
uart1_tx UART1 Serial Trans-
mit Data
uart1_rx UART1 Serial
Receive Data
uart1_rts UART1 Request To
Send (output)
uart1_cts UART1 Clear To
Send (input)
uart3_tx UART3 Serial Trans-
mit Data
uart3_rx UART3 Serial
Receive Data
usb1_txen USB1 Transmit
Enable
usb1_data USB1 Bidirectional
Data
usb1_se0 USB1 Bidirectional
Single Ended Zero
usb0_txen USB0 Transmit
Enable
usb0_data USB0 Bidirectional
Data
usb0_se0 USB0 Bidirectional
Single Ended Zero
ssi_omap_clock SSI Clock into OMAP
Table 7-18. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
R18
Y8
W8
V8
W15
R10
Y14
V14
AA15
R14
M18
L14
W16
W14
R13
W4
P9
R8
G21
SW Initialized
Active
State
Direction
Input
I/O
I/O
I/O
I/O
I/O
Output
Input
Output
Input
Output
Input
0 Output
I/O
I/O
0 Output
I/O
I/O
Input
HW Reset
*
PU State Direction
Pull- Input
down
Pul- Input
lup
Pul- Input
lup
Pul- Input
lup
Pul- Input
lup
Pul- Input
lup
None 0 Output
Pul- Input
lup
None 0 Output
Pul- Input
lup
None 0 Output
Pul- Input
lup
None Input
None 0 Output
None U Output
None 1 Output
None Input
None Input
None Input
7-51
*
PU
or
PD
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
None
Pull-
down
Pull-
down
Pull-
down
None
None
None