
RMV800 SERVICE MANUAL
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88
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PIN No.
PORT
PIN NAME
I/O
DESCRIPTION
1 P94/DA1 2TN/5TN
I
2-tone/5-tone decode pulse input
2 P93/DA0 DTMF
O
DTMF/2Tone/5Tone/BEEP output
3
P92
SBC
O
SB power switch control. H: off L: on
4
P91
AFDIO
I/O
AK2346 DATA I/O (SDAT)
5
P90
AFSCLK
O
AK2346 serial clock (SCLK)
6 BYTE
BYTE
I
+5V(5C)
7 CNVSS CNVSS I
GND
8 P87
PA
O
MIC PA switch control PA: H
9
P86
DACSTB
O
DA conversion strobe output
10 RESET
RESET
I
Reset
11 XOUT
XOUT
O
Clock
output
12 VSS
VSS
I
GND
13 XIN
XIN
I
Clock
input
14 VCC
VCC
I
+5V
15
P85/NMI
NMI
I
NMI, usually not use
16 P84/INT2 AFRDF
I
Bandpass
MSK receive detect (RDF/FD)
17
P83/INT1
DTMFSTD
I
DTMF decode detect Detect: H
18
P82/INT0
AUX2
I/O
PCB AUX 2 (input)
19
P81/TA4in
AUX3
I/O
AUX3 port (input)
20
P80/TA4out
AUX4
I/O
AUX4 port (input) (output)
21
P77/TA3in
SPMUTE
O
SP Mute Mute: H
22 P76/TA3out
TO
O
CTCSS/CDCSS modulation output
23 P75/TA2in EMICC
O
External MIC control External MIC: H
24
P74/TA2out
AFTDATA
O
Bandpass chip MSK serial data(TDATA)
25
P73/TA1in
AFTCLK
I
Bandpass chip MSK serial clock(TCLK)
26
P72/TA1out
AFDIR
O
Bandpass chip I/O control (DIR)
27
P71/RXD2
RXD2
I
Serial data input
28
P70/TXD2
TXD2
I
Serial data output
29
P67/TXD1
TXD1
O
Acc comm2 (serial data output)
30
P66/RXD1
RXD1
I
Acc comm2 (serial data input)
31
P65
AUX5
I/O
AUX5 port (output)
32
P64
AUX6
I/O
AUX6 port (output)
33
P63
TXD0
O
Acc comm1(serial data output)
34
P62
RXD0
I
Acc comm1(serial data input)
35
P61
AUX7
I/O
AUX7 port (output)
36
P60
AUX1
I/O
AUX1 port (input)
37 P57
RDY
I
Pull
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