Motorola APX 1000 - Page 278

7-52 Troubleshooting Tables: List of Board and IC Signals
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
spi_dsp_clk DSP SPI Clock from
OMAP
N14 I/O Pull-
down
Input None
spi_dsp_mosi DSP SPI Data from
OMAP
P14 Output Pull-
down
Input Pull-
down
spi_dsp_miso DSP SPI Data into
OMAP
AA17 Input Pull-
down
Input Pull-
down
gps_uart_tx UART Data from
OMAP to GPS IC
M18 Output None 0 Output Pull-
down
gps_uart_rx UART Data from
GPS IC to OMAP
R9 Input Pul-
lup
Input Pull-
down
16.8_mhz_clk Timer Reference
Clock Input
N18 Input None Input Pull-
down
trident_ssi[0] Transmit SSI Clock
from RF Board
Y6 Input Pull-
down
Input Pull-
down
trident_ssi[1] Transmit SSI Frame
Sync from RF Board
W7 Input Pull-
down
Input Pull-
down
trident_ssi[2] Transmit SSI Data
from OMAP
AA5 Output Pull-
down
0 Output Pull-
down
abacus_ssi[0] Receive SSI Clock
from RF Board
V7 I/O Pull-
down
Input None
abacus_ssi[1] Receive SSI Frame
Sync from RF Board
W6 I/O Pull-
down
Input None
abacus_ssi[2] Receive SSI Data
from RF Board
P10 Input Pull-
down
Input Pull-
down
scl I2C Clock T18 I/O None Input None
Table 7-18. Overall GPIO pin functions (Continued)
Signal Name Description
Pin
or
Ball #
Active
State
SW Initialized HW Reset
Direction
*
PU State Direction
*
PU
or
PD