Table of Contents
Advertisement
• IC Block Diagrams
IC231
ML7079MBZ020 (BASE MAIN Board)
IC31
ML7079MBZ020 (HAND MAIN Board)
GSX
1
30
29
NC
2
28
AIN – 3
–
A/D
PCM
27
B. P. F.
+
CONVERTER
COMPRESSOR
NC 4
20kΩ
SG
5
VREF
26
NC 6
25
ADPCM
VA
7
24
NC 8
23
AG
9
NC
10
D/A
PCM
VFRO
11
L. P. F.
22
CONVERTER
EXPANDER
20kΩ
NC
12
21
NC
13
20
DG 14
PDN
15
19
18
TEST
CIRCUIT
17
16
IC101
S-816A33AMC-BAI-T2 (HAND MAIN Board)
5
REFERENCE
ERROR
SINK
VOLTAGE
AMP
DRIVER
SOURCE
OVERCURRENT
POWER
PROTECT
SUPPLY
CIRCUIT
1
2
VD
BCLK
SYNC
PCMSO
PCMSI
IS
IR
PCMRO
PCMRI
NC
MCK
TEST0
TEST1
TEST2
TEST3
4
3
– 55 –
4-12. IC PIN FUNCTION DESCRIPTION
• BASE MAIN BOARD IC251 LC875064-CPX2112B (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
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
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
FLASH
PROGRAM
19
I
Not used (open)
SELECT
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)
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)
DSP PWR DOWN
33
O
Power down control signal output to the DSP (IC651)
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)
LED drive signal output of the NEW CALL indicator (D712) "L": LED on
39
LED (NEW CALL)
O
(Used for the SPP-S2430 model)
LED drive signal output of the ANSWER ON/OFF indicator (D711) and MESSAGES
LED
indicator (D713) "L": LED on
40
O
(ANS)/(VMWI)
(ANSWER ON/OFF indicator (D711): used for the SPP-A2480)
(MESSAGES indicator (D713): used for the SPP-S2430)
LED CONT
LED drive signal output of the liquid crystal display module back light (D721 to D726)
41
O
(LCD)
"L": LED on
ANTENNA
42
O
Main antenna on/off control signal output "L": antenna on
SELECT B
ANTENNA
43
O
Sub antenna on/off control signal output "L": antenna on
SELECT A
44
CODEC RESET
O
Reset signal output to the CODEC (IC231) "L": reset
SS PWR DOWN
45
O
Power down control signal output to the RF unit (RF201)
CONT
46
SS SPI RESET
O
Reset signal output to the RF unit (RF201)
Description
"L": hook off, "H": hook on
"L": data write, "H": data read
"L": power down
"H": power down
"L": reset
– 56 –
Advertisement
Table of Contents
