Motorola APX 1000 - Page 869

Troubleshooting Tables: List of Board and IC Signals 7-29
NC NC R10 I/O Pul-
lup
Input Pull-
down
uart1_tx UART1 Serial Transmit
Data
Y14 Output None 0 Output Pull-
down
uart1_rx UART1 Serial Receive
Data
V14 Input Pul-
lup
Input Pull-
down
uart1_rts UART1 Request To
Send (output)
AA15 Output None 0 Output Pull-
down
uart1_cts UART1 Clear To Send
(input)
R14 Input Pul-
lup
Input Pull-
down
uart3_tx UART3 Serial Transmit
Data
M18 Output None 0 Output Pull-
down
uart3_rx UART3 Serial Receive
Data
L14 Input Pul-
lup
Input Pull-
down
usb1_txen USB1 Transmit Enable W16 0 Output None Input None
usb1_data USB1 Bidirectional Data W14 I/O None 0 Output Pull-
down
usb1_se0 USB1 Bidirectional Sin-
gle Ended Zero
R13 I/O None U Output Pull-
down
usb0_txen USB0 Transmit Enable W4 0 Output None 1 Output Pull-
down
usb0_data USB0 Bidirectional Data P9 I/O None Input None
usb0_se0 USB0 Bidirectional Sin-
gle Ended Zero
R8 I/O None Input None
ssi_omap_clock SSI Clock into OMAP G21 Input None Input None
ssi_omap_sync SSI Sync into OMAP H15 Input None Input None
ssi_omap_txd SSI Serial Data from
CODEC
H20 Input None Input Pull-
down
ssi_omap_rxd SSI Serial Data to
CODEC
H18 Output None 0 Output Pull-
down
spi_arm_clk ARM SPI Clock from
OMAP
U19 I/O Pull-
down
Input None
spi_arm_mosi ARM SPI Data from
OMAP
W21 I/O Pull-
down
0 Output Pull-
down
spi_arm_miso ARM SPI Data into
OMAP
U18 Input Pull-
down
Input Pull-
down
Table 7-10. Overall GPIO pin functions (Continued)
Signal Name Description
Pin
or
Ball #
Active
State
SW Initialized HW Reset
Direction
*
PU State Direction
*
PU
or
PD