Motorola APX 1000 Detailed Service Manual page 279

Troubleshooting Tables: List of Board and IC Signals
Signal Name
sda I2C Data
rtck JTAG Clock from
Controller
tck JTAG Clock from
JTAG box to Control-
ler
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 Control-
ler
nemu0 "Emulation pin 0, not
used, pulled high on
PCB
nemu1 "Emulation pin 1, not
used, pulled high on
PCB
Note:
* PU = Pull Up
* PD = Pull Down
** = Not applicable to APX 2000/ APX 4000 (Two Knobs)
Table 7-18. Overall GPIO pin functions (Continued)
Pin
Description or
Ball #
V20
Y17
W18
Y18
V17
AA19
Y19
"V16
"W17
SW Initialized
Active
State
Direction
I/O
I/O
Input
Input
Input
Output
Input
I/O
I/O
HW Reset
*
PU State Direction
None Input
None U Unknown
None Input
None Input
Input
0 Output
Input
Input
Input
7-53
*
PU
or
PD
None
None
Pull-
down
Pull-
down
None
Pull-
down
Pul-
lup
Pul-
lup