– 17 –
Pin No. Pin Name I/O Function
43 VSS — Ground terminal
44 POS DAT O Serial data output to the 1296 divider (IC106)
45 POS CLK O Serial data transfer clock signal output to the 1296 divider (IC106)
46 POS LE O Serial data latch pulse output to the 1296 divider (IC106)
47 PI CHK0 I Not used (fixed at “L”)
48 PI TEST I Setting terminal for the test mode “L”: test mode
49 PI TCLK I Not used (open)
50 PI C/D I Command/data judging signal input from the equipment connected to digital I/O connector (CN703)
51 PO PAMP O Standby on/off control signal output to the power amplifier (IC105) “L”: standby
52 PO LCDR O LCD drive reference voltage control signal output to the LCD module
53 PO BEEP O Beep sound drive signal output terminal
54 VDD — Power supply terminal (+3.4V)
55 PO CHK1 O Not used (open)
56 PO BOP O Battery lid open/close detection control signal output terminal
“L”: detection disabled, “H”: detection enabled
57 PO SPC O Master clock switching signal output in recording mode (LP/SP) (SP mode: 10.368 MHz)
In SP mode, “H” is output to the clock switch (IC703) to switch over the clock
58 PO LPC O Master clock switching signal output in recording mode (LP/SP) (LP mode: 6.912 MHz)
In LP mode, “L” is output to the clock generator (IC704) to switch over the clock
59 PO KEYV O Key power control signal output terminal
60 PO LCDV O LCD drive power control signal output to the LCD module
61 VSS — Ground terminal
62 BATT A/D I Dry battery voltage detection signal input terminal (A/D input)
63 KEY A/D I Key input terminal (A/D input) S703, 705 (STOP, REC), switch unit (FILE, PRIORITY, MENU)
keys input
64 — O Not used (open)
65 PO XSDW O Clear control signal output to the data latch (IC107)
66 VDD (VPP) — Power supply terminal (+3.4V)
67 POA CLK O Serial clock signal output to the MSM7560LGS (IC101) (Clock signal is output during serial data
transfer)
68 PIA IS I Recording serial data input from the MSM7560LGS (IC101)
69 POA IR O Playback serial data output to the MSM7560LGS (IC101)
70 POD SCK O Serial data transfer clock signal output to the LCD module
71 POD STB O Strobe signal output to the LCD module
72 POD DAT O Serial data output to the LCD module
73 PULL UP I Not used (fixed at “H”)
74 PULL UP I Not used (fixed at “H”)
75 NMI I Non-maskable interrupt input terminal
76 XSYNC I Input of signal detecting that serial transfer to the MSM7560LGS (IC101) started
77 PI REQ I Communication request signal input from the equipment connected to digital I/O connector (CN703)
78 PI WAKE I Key interruption processing start signal input terminal
79 PI OPEN I Battery lid open/close detection switch (S701) input terminal “L”: battery lid is closed
80 PI POTA I Rotary encoder dial pulse input of the jog dial (=– + +)
81 PI POTB I Rotary encoder dial pulse input of the jog dial (=– + +)
82 RST I System reset signal input from the reset signal generator (IC502) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
83 VDD — Power supply terminal (+3.4V)
