PT6808 Service Manual
Appendix 2 Semiconductor Data
Microprocessor: 30620M8A-394GP (TX-RX part: TC19)
Functions of pins
Pin
Port Name
In/Out
Functions
1 LG
O Receiving
control
2
HSDOUT
I
High speed data output
3
HSDIN
I
High speed data input
4
DTMSTD
I
DTMF decoding, IC data check input
5
LBL
O
DC switch control
6 BYTE
I
+5V
7 CNVSS
I
GND
8 LR
I
Tx
control
9
LCDCS
O
LCD drive chip selection output
10
RESET
I
Microprocessor reset input
11
XOUT
-
9.8304MHZ (system clock)
12 VSS
-
GND
13
XIN
-
9.8304MHZ (system clock)
14 VCC
-
+5V
15
AUX
I
AUX switch input
16 REPLY-DATE
I
Reset
selection
17 IRQN
18
EN2
I
Encoding pulse input 2
19
PLLCLK
O
PLLIC clock output
20
BEEP
O
Beep data output
21
AFRDT
O
Tx/Rx switch control
22
CMX-DATE
O
Consistent clock output
23
CMX-CSN
O
Initial sequence of data transfer control
24
EEPDAT
O
EEPROM data output
25
DACSTB
O
Digital/ analog switch chip data input
26
AFCLR
O
FFSK reset output
27 SAVE
O
Battery
saver
output
28
LAMP
I
LAMP switch input
29
AUXTXD
O
External serial port output
