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5-12. IC PIN FUNCTION DESCRIPTION
• IC3 TC9327AF-04CDW DTS MICRO CONTROLLER (MAIN Board)
Pin No.
Pin Name
1 to 4
COM1 to COM4
5 to 20
S1 to S16
21
MODEL1
22
RE2
23
RE1
24
MODEL2
25
DESTVSS_O
26
A0_O
27
CS_O
28
LCD-REQ_I
29
XLID-OPEN_I
30
EEP DO/DI-IO
31
EEP-SK_O
32
EEP-CS_O
33
XL/O-I
34
RM-KEY_I
35
DEST
36
AD-KEY3_I
37
KEY2
38
TU ON_O
39
CD ON_I
40
TU-AVLS_O
41
TV-L-ON_O
42
AD-KEY1_I
43
BATT_I
44
HIDC_I
45
AD-DC_REF
46
CDU-SDI_I
47
CDU-SDO_O
48
CDU-SCK_I
49
TU-BEEP_O
50
VOL-PWM_O
51
TU-HOLD_I
52
BAND-CTL2_O
53
BAND-CTL1_O
54
ACK-CD_O
MONO/
55
LOCAL-CTR_O
56
S/W IDEN_I
57
XTU-TEST_I
58
XTU-BASS1_O
59
XTU-BASS2_O
60
+B ON/OFF-O
61
IF-REQ_O
62
TU-MUTE_O
63
TEST
64
IF_I
65
EO(DO1)_O
66
NC(DO2)
I/O
O
LCD drivers (not used (open))
O
LCD drivers (not used (open))
I
Key setting selector signal input (fixed at "L")
O
Not used (open)
O
AM mode DD con on/off control signal output
I
Not used (fixed at "L")
I
Local/DX or Mono/Stereo ON-Off switch detection signal input
O
A0 signal output to the LCD unit
O
Chip select signal output to the LCD unit
I
LCD display request signal from the IC801
I
CD lid open/close detection signal input
I/O
Data input/output for EEPROM (not used (open))
O
Clock output for EEPROM (not used (open))
O
Chip select signal output for EEPROM
I
Line out jack detection signal input (fixed at "L")
I
Key signal input from the remote commander (fixed at "L")
I
Destination detection signal input
I
Key signal input (not used (open))
I
Key signal input
O
Radio mode status signal output to the IC801
I
CD ON request signal input from the IC801 (Wakeup TU in sleep mode)
—
Not used (open)
O
TV-L (ch 2, 3 and 4) selection switch control signal output (not used (open))
I
Key signal input from the function keys
I
Battery voltage detection signal input (external DC 1.5V as reference)
I
HiDC voltage detection signal input
—
DC reference of A/D converter (used for HiDC and batt detection with external DC 1.5V as reference)
I
Serial data input from the IC801
O
Serial data output to the IC801
I
Serial clock input from the IC801
O
Beep sound signal output to the headphone amplifier
O
PWM volume control signal output
I
HOLD switch detection signal input from the S810
O
BAND CONTROL 2 signal output
O
BAND CONTROL 1 signal output
O
CD acknowledge and status signal output to the IC801
O
Local/DX or Mono/Stereo ON-Off control signal output
I
Switch signal input (fixed at "H")
I
TU test mode detection signal input ("L" : active)
O
Bass On (sound mode) control signal output
O
Bass H/L (sound mode) control signal output
O
Radio power On/Off control signal output (VCO and IF amplifier block)
O
IF request signal output
O
Tuner muting control signal output
—
Not used (open)
I
TV/WB/FM/AM IF signal input
O
PLL error signal output
—
Not used (open)
Description
XP-ZR810
33
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