7-28 Troubleshooting Tables: List of Board and IC Signals
omap_mpu_boot Pin pulled high on PCB
to select external boot
on EMIFS CS3 (flash
memory)
J20 Input None 1 Input None
reset_mode Determines reset mode
of OMAP. Latched on
rising edge of
PWR_ON_RESET.
Pulled low on PCB
(mode 0).
P12 Input None 0 Input None
mako_resetx "Master cold reset input
for entire 1710 chip,
controlled by Mako IC
"R12 0 Input None Input None
mako_resetx "MPU (ARM9) subsys-
tem reset input, tied to
PWRON_RESET (R12)
on PCB
"U20 0 Input None Input None
omap_reset "Reset output from
OMAP used for
CODEC, CPLD, Front
Display, Lighting Con-
trollers, MACE Tamper
ckt.
"AA20 0 Output None 0 Output None
RSW_Int Rotary Interrupt to
OMAP
Y10 Input Pull-
down
Input Pull-
down
RSW_A Rotary knob input to
OMAP
V11 Input Pull-
down
Input Pull-
down
RSW_B Rotary knob input to
OMAP
R11 Input Pull-
down
Input Pull-
down
NC NC R18 Input Pull-
down
Input Pull-
down
NC NC Y8 I/O Pul-
lup
Input Pull-
down
NC NC W8 I/O Pul-
lup
Input Pull-
down
NC NC V8 I/O Pul-
lup
Input Pull-
down
NC NC W15 I/O Pul-
lup
Input Pull-
down
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
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