49
MZ-N707
• IC801 CXD2677-202GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)
Pin No. Pin Name I/O Description
1NC OLoad address strobe signal output terminal for D-RAM Not used
2NC ITest input terminal for D-RAM Not used
3 to 7 NC OAddress signal output terminal for D-RAM Not used
8, 9 NC I/O Two-way data bus terminal for D-RAM Not used
10, 11 DRAMVDD0, 1 —Power supply terminal (for D-RAM) (+2.4V)
12, 13 DRAMVSS0, 1 —Ground terminal (for D-RAM)
14, 15 NC I/O Two-way data bus terminal for D-RAM Not used
16 to 19 NC OAddress signal output terminal for D-RAM Not used
20 NC OColumn address strobe signal output terminal for D-RAM Not used
21 NC ITest input terminal for D-RAM Not used
22, 23 NC OAddress signal output terminal for D-RAM Not used
24 DVSS0 —Ground terminal (for the DSP block)
25 DVDD0 —Power supply terminal (for the DSP block) (+1.5V)
26 OFTRK IOff track signal input from the DSP monitor (3)
27 SSB DATA I/O SSB data input/output with the RF amplifier and the remote commander attached headphone
28 SSB CLK O SSB clock output to the RF amplifier
29 VREC PWM O PWM signal output for the Over write head drive power supply voltage control to the power
control
30 VL PWM O PWM signal output for the laser power supply voltage control to the power control
31 VC PWM O PWM signal output for the system power supply voltage control to the power control
32 NC (VD PWM) O VD power supply voltage control signal output terminal Not used
33 NC —Not used
34 IFVDD0 —Power supply terminal (for the microcomputer I/F block) (+2.3V)
35 IFVSS0 —Ground terminal (for the microcomputer I/F block)
36 OPT DET I DIN plug detection signal input terminal “H”: DIN plug
37 XJACK DET I LINE IN plug detection signal input terminal “L”: LINE or OPT plug
38 XMIC DET I Microphone plug detection signal input terminal “L”: microphone plug
39 OPEN CLOSE
SW IOpen/close detection switch of the upper panel input terminal
“L”: when upper panel close
40, 41 SET CODE0, 1 I Input terminal for the set (open in this set)
42, 43 SET CODE2, 3 I Input terminal for the set (fixed at “L” in this set)
44 XPATCH I Patch function detection signal input terminal “L”: patch function Not used
45 SI0 I Serial data input from the nonvolatile memory
46 SO0 O Serial data output to the nonvolatile memory, A/D converter and liquid crystal display element
module
47 SCK0 O Serial clock signal output to the nonvolatile memory, A/D converter and liquid crystal display
element module
48 XGUM ON I Rechargeable battery detection switch input terminal “L”: there is rechargeable battery
Not used
49 BEEP O Beep sound control signal output to the headphone amplifier
50, 51 TEST1, TEST0 I Input terminal for the main test (normally fixed at “L”)
52 KDO OData output terminal Not used
53 KRB IReady/busy signal input terminal Not used
54 KCLK OClock signal output terminal Not used
55 KCS OChip select signal output terminal Not used
56 KDI IData input terminal Not used