Motorola APX 1000 Detailed Service Manual page 870

7-30
Signal Name
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
sda I2C Data
rtck JTAG Clock from Con-
troller
tck JTAG Clock from JTAG
box to Controller
ntrst JTAG Reset from JTAG
box
omap_tms JTAG Test Mode Select
from JTAG box
omap_tdo JTAG Data out from
Controller
Table 7-10. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
N14
P14
AA17
M18
R9
N18
Y6
W7
AA5
V7
W6
P10
T18
V20
Y17
W18
Y18
V17
AA19
Troubleshooting Tables: List of Board and IC Signals
SW Initialized
Active
State
Direction
I/O
Output
Input
Output
Input
Input
Input
Input
Output
I/O
I/O
Input
I/O
I/O
I/O
Input
Input
Input
Output
HW Reset
*
PU State Direction
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
None Input
None U Unknown
None Input
None Input
Input
0 Output
*
PU
or
PD
None
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
Pull-
down
None
None
Pull-
down
None
None
None
Pull-
down
Pull-
down
None