Motorola APX 1000 Detailed Service Manual page 278

7-52
Signal Name
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
spi_arm_miso ARM SPI Data into
OMAP
spi_dsp_clk DSP SPI Clock from
OMAP
spi_dsp_mosi DSP SPI Data from
OMAP
spi_dsp_miso DSP SPI Data into
OMAP
gps_uart_tx UART Data from
OMAP to GPS IC
gps_uart_rx UART Data from
GPS IC to OMAP
16.8_mhz_clk Timer Reference
Clock Input
trident_ssi[0] Transmit SSI Clock
from RF Board
trident_ssi[1] Transmit SSI Frame
Sync from RF Board
trident_ssi[2] Transmit SSI Data
from OMAP
abacus_ssi[0] Receive SSI Clock
from RF Board
abacus_ssi[1] Receive SSI Frame
Sync from RF Board
abacus_ssi[2] Receive SSI Data
from RF Board
scl I2C Clock
Table 7-18. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
H15
H20
H18
U19
W21
U18
N14
P14
AA17
M18
R9
N18
Y6
W7
AA5
V7
W6
P10
T18
Troubleshooting Tables: List of Board and IC Signals
SW Initialized
Active
State
Direction
Input
Input
Output
I/O
I/O
Input
I/O
Output
Input
Output
Input
Input
Input
Input
Output
I/O
I/O
Input
I/O
HW Reset
*
PU State Direction
None Input
None Input
None 0 Output
Pull- Input
down
Pull- 0 Output
down
Pull- Input
down
Pull- Input
down
Pull- Input
down
Pull- Input
down
None 0 Output
Pul- Input
lup
None Input
Pull- Input
down
Pull- Input
down
Pull- 0 Output
down
Pull- Input
down
Pull- Input
down
Pull- Input
down
None Input
*
PU
or
PD
None
Pull-
down
Pull-
down
None
Pull-
down
Pull-
down
None
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
None
None
Pull-
down
None