7-30
Troubleshooting Tables:
List of Board and IC Signals
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
sda
I2C Data
V20
I/O
None
Input
None
rtck
JTAG Clock from Con-
troller
Y17
I/O
None
U
Unknown
None
tck
JTAG Clock from JTAG
box to Controller
W18
Input
None
Input
Pull-
down
ntrst
JTAG Reset from JTAG
box
Y18
Input
None
Input
omap_tms
JTAG Test Mode Select
from JTAG box
V17
Input
Input
Pull-
down
omap_tdo
JTAG Data out from
Controller
AA19
Output
0
Output
None
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
Summary of Contents for APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......