Motorola APX 3000 Detailed Service Manual page 218

7-10
Signal Name
NC NC
NC NC
uart1_tx UART1 Serial
Transmit 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
Transmit 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
ssi_omap_sync SSI Sync into OMAP
ssi_omap_txd SSI Serial Data from
CODEC
ssi_omap_rxd SSI Serial Data to
CODEC
spi_arm_clk ARM SPI Clock from
OMAP
spi_arm_mosi ARM SPI Data from
OMAP
Table 7-7. Overall GPIO pin functions (Continued)
Pin or
Description
Ball #
W15
R10
Y14
V14
AA15
R14
M18
L14
W16
W14
R13
W4
P9
R8
G21
H15
H20
H18
U19
W21
Troubleshooting Tables: List of Board and IC Signals
SW Initialized
Active State
Direction
I/O
I/O
Output
Input
Output
Input
Output
Input
0 Output
I/O
I/O
0 Output
I/O
I/O
Input
Input
Input
Output
I/O
I/O
HW Reset
*
PU State Direction
Pullup Input
Pullup Input
None 0 Output
Pullup Input
None 0 Output
Pullup Input
None 0 Output
Pullup Input
None Input
None 0 Output
None U Output
None 1 Output
None Input
None Input
None Input
None Input
None Input
None 0 Output
Pull- Input
down
Pull- 0 Output
down
*
PU or
PD
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
None
Pull-
down
Pull-
down
None
Pull-
down