30
CDX-T67
5-12. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC301 MB90473PFV-G-113-BNDE1 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1, 2
RAMA5, RAMA6
O Address signal output to the S-RAM Not used (open)
3 ELVR O
Motor drive signal (elevator down direction) output to the elevator motor drive (IC302)
“L” active *1
4 ELVF O
Motor drive signal (elevator up direction) output to the elevator motor drive (IC302)
“L” active *1
5 LOADF O
Motor drive signal (load chucking direction) output to the chucking motor drive (IC201)
“L” active *2
6 LOADR O
Motor drive signal (save direction) output to the chucking motor drive (IC201)
“L” active *2
7, 8
RAMA7, RAMA12
O Address signal output to the S-RAM Not used (open)
9 VSS — Ground terminal
10 RAMA14 O Address signal output to the S-RAM Not used (open)
11 RAMWE O Write enable output to the S-RAM Not used (open)
12 to15
RAMA13, RAMA8,
RAMA9, RAMA11
O Address signal output to the S-RAM Not used (open)
16 UNI SI I Serial data input from the SONY bus interface (IC201)
17 UNI SO O Serial data output to the SONY bus interface (IC201)
18 UNI CK I Serial data transfer clock signal input from the SONY bus interface (IC201)
19 LEDDAT O Not used (open)
20 LEDCLK O Not used (open)
21 VCC — Power supply terminal
22 LEDLAT O Not used (open)
23 CDON O Power supply on/off control signal output terminal “H”: power on Not used (open)
24 ELVON O Mechanism deck section power supply on/off control signal output “H”: power on
25 RX I Input terminal at the flash memory data write mode Not used (open)
26 TX O Output terminal at the flash memory data write mode Not used (open)
27 NC O Not used (open)
28 EECLK O Serial data transfer clock signal output to the EEPROM Not used (open)
29 FL BOOT I Flash memory data write control signal input terminal “L” active Not used (fixed at “H”)
30, 31 NC O Not used (open)
32 EEDAT I/O Two-way data bus with the EEPROM Not used (pull down)
33 AVCC — Power supply terminal (for A/D converter)
34 AVRH I Reference voltage input terminal (for A/D converter)
35 AVSS — Ground terminal (for A/D converter)
36 EHS I
Elevator height position detection signal input from the RV301 (elevator height sensor)
(A/D input)
37 MCK I
Input of detection signal for the fine adjustment (elevator height (address) adjustment; RV302) of
elevator height position (A/D input)
38, 39 KEY0, KEY1 I Not used (fixed at “H”)
40 VSS — Ground terminal
41 FOK I Focus OK signal input from the CXD3017Q (IC401) “L”: NG, “H”: OK
42 GFS I Guard frame sync signal input from the CXD3017Q (IC401) “L”: NG, “H”: OK
43 SCLK O Serial data reading clock signal output to the CXD3017Q (IC401)
44 SENS I Internal status signal (sense signal) input from the CXD3017Q (IC401)
45 BUSON I Bus on/off control signal input from the SONY bus interface (IC201) “H”: bus on
46 BUCHK I
Battery detection signal input “L”: battery on
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