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• IC Block Diagrams
IC231
ML7079MBZ020 (BASE MAIN Board)
IC31
ML7079MBZ020 (HAND MAIN Board)
IC101
S-816A33AMC-BAI-T2 (HAND MAIN Board)
13
+
–
1
2
GSX
NC
AIN – 3
NC 4
5
SG
NC 6
7
VA
NC 8
9
AG
10
NC
11
VFRO
12
NC
NC
DG 14
15
PDN
PCMRI
NC
MCK
TEST0
TEST1
TEST2
TEST3
22
21
20
19
18
17
16
VD
BCLK
SYNC
PCMSO
PCMSI
IS
IR
PCMRO
30
29
28
27
26
25
24
23
A/D
CONVERTER
B. P. F.
PCM
COMPRESSOR
D/A
CONVERTER
L. P. F.
PCM
EXPANDER
TEST
CIRCUIT
VREF
20k
Ω
20k
Ω
ADPCM
3
2
5
OVERCURRENT
PROTECT
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMP
SINK
DRIVER
4
1
VIN
VOUT
ON/OFF
VSS
EXT
SOURCE
POWER
SUPPLY
4-12.
IC PIN FUNCTION DESCRIPTION
•
BASE MAIN BOARD IC251 LC875064-CPX2112B (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
LCD SCL
O
Serial data transfer clock signal output to the liquid crystal display module (LCD101)
2
SS SPI DOUT
O
Serial data output to the RF unit (RF201)
3
SS SPI DIN
I
Serial data input from the RF unit (RF201)
4
SS SPI CLK
O
Serial data transfer clock signal output to the RF unit (RF201)
5
HOOK SW DET
I
Hook on/off detection signal input “L”: hook on, “H”: hook off
6
OFF HOOK CONT
O
Hook on/off control signal output “L”: hook off, “H”: hook on
7, 8
PWM1, PWM0
O
Not used (open)
9
VDD2
—
Power supply terminal (+5V)
10
VSS2
—
Ground terminal
11
P00
I
Not used (open)
12
JOG PUSH
I
ENTER switch (S701) input terminal “L” input when key pressing
13 to 18 ROW1 to ROW6
I
Key data input to the key matrix “L” input when key pressing
19
FLASH
PROGRAM
SELECT
I
Not used (open)
20, 21
COL1, COL2
O
Key scan output to the key matrix “L” output when key waiting
22
JOG A
I
Jog dial pulse input of the rotary encoder (JOG701) (A phase input)
23
JOG B
I
Jog dial pulse input of the rotary encoder (JOG701) (B phase input)
24 to 26
COL3 to COL5
O
Key scan output to the key matrix “L” output when key waiting
27
DSP SC
O
Serial data transfer clock signal output to the DSP (IC651)
28
DSP HRNW
O
Data read/write selection signal output to the DSP (IC651) “L”: data write, “H”: data read
29
DSP CSN
O
Chip select signal output to the DSP (IC651) “L” active
30
DSP ACKN
I
Acknowledge signal input from the DSP (IC651) “L” active
31
DSP SDO
O
Serial data output to the DSP (IC651)
32
DSP SDI
I
Serial data input from the DSP (IC651)
33
DSP PWR DOWN
O
Power down control signal output to the DSP (IC651) “L”: power down
34
DSP RESET
O
Reset signal output to the DSP (IC651) “L”: reset
35
VSS3
—
Ground terminal
36
VDD3
—
Power supply terminal (+5V)
37
E2PROM SCL
O
Serial data transfer clock signal output to the EEPROM (IC252)
38
E2PROM SDA
I/O
Two-way data bus with the EEPROM (IC252)
39
LED (NEW CALL)
O
LED drive signal output of the NEW CALL indicator (D712) “L”: LED on
(Used for the SPP-S2430 model)
40
LED
(ANS)/(VMWI)
O
LED drive signal output of the ANSWER ON/OFF indicator (D711) and MESSAGES
indicator (D713) “L”: LED on
(ANSWER ON/OFF indicator (D711): used for the SPP-A2480)
(MESSAGES indicator (D713): used for the SPP-S2430)
41
LED CONT
(LCD)
O
LED drive signal output of the liquid crystal display module back light (D721 to D726)
“L”: LED on
42
ANTENNA
SELECT B
O
Main antenna on/off control signal output “L”: antenna on
43
ANTENNA
SELECT A
O
Sub antenna on/off control signal output “L”: antenna on
44
CODEC RESET
O
Reset signal output to the CODEC (IC231) “L”: reset
45
SS PWR DOWN
CONT
O
Power down control signal output to the RF unit (RF201) “H”: power down
46
SS SPI RESET
O
Reset signal output to the RF unit (RF201) “L”: reset