49
MZ-R909
• IC801 CXD2671-206GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)
Pin No. Pin Name I/O Description
1 to 5 NC —Not used (open)
6MCUVDD0 —Power supply terminal (for microcomputer block) (+1.5V)
7MIFVSS3 —Ground terminal (for microcomputer I/F)
8XRST ISystem reset signal input terminal from the power control (IC901) “L”: reset
9S MON IServo signal monitor input terminal (A/D input) from RF amp (IC501)
10 VB MON IVoltage monitor input terminal of UNREG power supply (A/D input)
11 CHG MON ICharge voltage monitor input terminal (A/D input) from XPC18A22FCR2 (IC601)
12 VREF MON I Clear reference monitor voltage input terminal (A/D input) from RF amp (IC501)
13, 14 SET KEY 1,
SET KEY 2 I Key input terminal from the switch & LCD module (A/D input)
15 VL MON I VL voltage monitor input terminal (A/D input)
16 HIDC MON IHIGH DC voltage monitor input terminal (A/D input)
17 WK DET ISet key start switching detection signal input terminal (A/D input)
18 REC KEY IREC key input terminal (A/D input)
19 HALF LOCK
SW IOpen button detection switch (S805) input terminal (A/D input) Input “L” when the open button
is pressed. Input “H” in other cases.
20 RMC KEY IKey input terminal (A/D input) from the remote commander attached headphone
21 AVDD —Power supply terminal (for the analog circuit block) (+2.8V)
22 AVSS —Ground terminal (for the analog circuit block)
23 VDIOSC —Power supply terminal (for OSC cell) (+2.4V)
24 OSCI ISystem clock (45.1584MHz) input terminal
25 OSCO OSystem clock (45.1584MHz) output terminal
26 VSIOSC —Ground terminal (for OSC cell)
27 DAVDD —Power supply terminal (for the built-in D/A converter) (+2.4V)
28 VREFL I Reference voltage input terminal (for the internal D/A converter L-CH)
29 AOUTL OBuilt-in D/A converter (L-CH) output terminal
30 AOUTR OBuilt-in D/A converter (R-CH) output terminal
31 VREFR IReference voltage input terminal (for the built-in D/A converter R-CH)
32 DAVSS —Ground terminal (for the built-in D/A converter)
33 ASYO OPlayback EFM duplex signal output terminal
34 ASYI I Playback EFM comparison slice level input terminal
35 AVD1 —Ground terminal (for the analog) (+2.4V)
36 BIAS IBias current input terminal for the playback EFM comparison
37 RFI IPlayback EFM RF signal input from RF amp (IC501)
38 AVS1 —Ground terminal (for the analog)
39 PCO O Phase comparison output terminal for the playback EFM system master PLL
40 PDO OPhase comparison output terminal for the analog PLL Not used (open)
41 FILI IFilter input terminal for the playback EFM system master PLL
42 FILO O Filter output terminal for the playback EFM system master PLL
43 CLTV I Internal VCO control voltage input for the playback EFM system master PLL
44 PEAK IPeak hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501)
45 BOTM IBottom hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501)
46 ABCD I Light amount signal (ABCD) input from RF amp (IC501)
47 FE I Focus error signal input from RF amp (IC501)
48 AUX1 I Support signal (I
3
signal/temperature signal) input terminal (A/D input)