– 17 –
6-1. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC101 TMP87CP64YF-6396 (MASTER CONTROL)
SECTION 6
DIAGRAMS
Pin No. Pin Name I/O Function
1 Vss — Ground
2 X OUT O
Main system clock (10 MHz)
3X INI
4 RESET I Reset signal input terminal
5 X OUT O
Sub system clock (32 kHz)
6X INI
7 GND <TEST> — Ground
8 BACK UP I BACK-UP mode input terminal
9 COUNT. SW — Not used (Connected to Ground)
10 INIT. SW — Not used (Connected to Ground)
11 DISC SENS — Not used (Connected to Ground)
12 MID SENS — Not used (Connected to Ground)
13 CD-XRST O CD Reset output “L”: RESET
14 POWER O Power on output “L”: ON
15 MUTE O Mute output “L”: MUTE
16 MPX — Not used (Open)
17 KEYCON. LATCH O HIGH LED drive signal output
18 VOL. LATCH O Latch output to volume control (TC9210)
19 ST MUTE O Mute signal output for tuner
20 ST FM — Not used (Open)
21 FUNC. A O
22 FUNC. B O Function Select
23 FUNC. C O
24 GEQ. LATCH O Latch output to gray control (M6243)
25 RDS-INT I Not used (Pull up)
26 SCOR <DSP> I Sub code sync SO+SI detection input from DSP (CXD2507AQ)
27 CIN/SENS I SENS input from DSP (CXD2507AQ)
28 CD. POWER O CD Power on output “H”: ON
29 CDG_LATCH — Not used (Open)
30 DBFB 1-2 O MID LED drive signal output
31 MUTE O LOW LED drive signal output
32 CE O Chip enable output to tuner PLL IC (LC72130)
33 STEREO I FM/AM Stereo identification “L”: STEREO
34 TUNED I FM/AM Tuning identification “L”: TUNING
35 SQ-RDS-CLK O Sub-code Q data scanning clock output to DSP (CXD2507AQ)
36 SQ-RDS. D1 I Sub-code Q data input from DSP (CXD2507AQ)
37 RDS-RESET — Not used (OPEN)
38 CLK O System clock output
39 D. IN I Serial data input from tuner
40 D. OUT O Serial data (COMN) output
FUNCTION FUNC A FUNC B FUNC C
ST L L H
CD L H H
TC H L H
MD H H L
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w
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a
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y
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1
6
3
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c
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3
7
6
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1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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