Motorola APX 5000 Service Manual page 274

7-24
Table 7-12. Overall GPIO pin functions across multiple boards (Continued)
Signal Name
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
Controller
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
TDI JTAD Data in from
JTAG box to Controller
NEMU0 Emulation pin 0, not
used, pulled high on
PCB
Pin
Description or
Ball #
AA17
M18
R9
N18
Y6
W7
AA5
V7
W6
P10
T18
V20
Y17
W18
Y18
V17
AA19
Y19
V16
Troubleshooting Tables: List of Board and IC Signals
SW Initialized
Active
State
Direction
Input
Output
Input
Input
Input
Input
Output
I/O
I/O
Input
I/O
I/O
I/O
Input
Input
Input
Output
Input
I/O
HW Reset
*
PU State Direction
PD Input
None 0 Output
PU Input
None Input
PD Input
PD Input
PD 0 Output
PD Input
PD Input
PD Input
None Input
None Input
None U Unknown
None Input
None Input
Input
0 Output
Input
Input
*
PU
or
PD
PD
PD
PD
PD
PD
PD
PD
None
None
PD
None
None
None
PD
PD
None
PD
PU