HYT TC-700P, Service Manual

Page: 18 / 100

TC-700P Service Manual
18
85 P01/D1
AK2346B_DI
R
I/O AK2346B register
B indicates the
second
AK2346 (using
the same clock
with the first
AK2346) (for
5-Tone model)
86 P00/D0
AK2346B_D
ATA
O AK2346B data
B indicates the
second
AK2346 (using
the same clock
with the first
AK2346) (for
5-Tone model)
87 P107/AN7 NC
Reserved for
patrol module.
Not used.
88 P106/AN6 OPTION1 I
Determine the optional board
according to different levels
(Used for future development)
89 P105/AN5 VOX I MIC signal input
90 P104/AN4 BATT I Battery voltage detect
91 P103/AN3 BATTSEL I
Battery identification (identify
whether the battery is
matched)
92 P102/AN2 RSSI I RSSI detect
93 P101/AN1 SQL I Squelch level input
94 AVSS GND I
A/D conversion power
grounded input
95 P100/AN0 CTC_IN I CTCSS signal input
96 VREF VCC I
A/D conversion reference
voltage
97 AVCC VCC I A/D conversion power input
98 P97 NC
Reserved for
patrol module.
Not used.
99 P96 NC Not used.
100 P95 NC Not used.