13
ICD-47
•
IC701
µ
PD780308GC-A31-8EU (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
KEY0
I
Key input terminal (A/D input) S701 to S705 (STOP, REC START/STOP,
Nx
PLAY/STOP
(EXECUTE), –
.
(SELECT),
>
+ (SELECT) ) keys input
2
KEY1
I
Key input terminal (A/D input) S707 to S709 (MENU, FILE, ERASE) keys input
3
SPDSW
I
PLAY SPEED select switch (S712) input terminal (A/D input)
“L”: SLOW, “M”: FAST, “H”: NORMAL
4
XHOLD
I
HOLD switch (S711) input terminal “L”: HOLD ON, “H”: HOLD OFF
5
LMUTE
O
Line muting control signal output terminal “H”: line muting on
6
MICSEL
O
Microphone sensitivity select signal output terminal
“L”: mic sensitivity low, “H”: mic sensitivity high
7
XFMCE
O
Chip enable signal output to the flash memory (IC702) “L” active
8
VDD0
—
Power supply terminal (+3.3V)
9
AVREF
I
Reference voltage input terminal (for A/D converter)
10
XFMWE
O
Write enable signal output to the flash memory (IC702) “L” active
11
XFMALE
O
Address latch enable signal output to the flash memory (IC702) “L” active
12
VSS1
—
Ground terminal
13
XFMBSY
I
Ready/busy detection signal input from the flash memory (IC702) “L” active
14
XFMCLE
O
Command latch enable signal output to the flash memory (IC702) “L” active
15
DSPMCK
O
Sampling frequency sync signal output to the digital signal processor (IC104) “H” active
16
DSPSSN
O
Transmission status output to the digital signal processor (IC104) “L” active
17
XFMRE
O
Read enable signal output to the flash memory (IC702) “L” active
18
NC
—
Not used (open)
19
XFMWP
O
Write protect signal output to the flash memory (IC702) “L” active
20
XFMSE
O
Spare space enable signal output to the flash memory (IC702) “L” active
21
BEEP
O
Beep sound drive signal output terminal (2.4 kHz) “H” active
22
PLLCRL
O
Serial data transfer clock signal output to the divider (IC106)
Power on/off control signal output for the ADPCM (IC101), digital signal processor (IC104),
divider (IC106) and LED power supply “H”: power on
23 to 26
COM0 to COM3
O
Common drive signal output to the liquid crystal display (ND701) “H” active
27
BIAS
O
Power supply output terminal for the liquid crystal display (ND701) “H” active
I
Power supply input terminal for the liquid crystal display (ND701) “H” active
—
Ground terminal
O
Segment drive signal output to the liquid crystal display (ND701) “H” active
—
Not used (open)
O
Power on/off control signal output for the mic amplifier (IC103) and AGC (IC107)
“H”: power on (rec mode)
I
Setting terminal for the test mode “L”: test mode (Normally: fixed at “H”)
O
Stop signal output to the digital signal processor (IC104) “L” active
O
LED drive signal output of the REC indicator (D504 red) “H”: LED on (rec mode)
67
LEDPB
O
LED drive signal output of the PLAY indicator (D504 green) “H”: LED on (play mode)
68
AMPPOW
O
Power on/off control signal output to the power amplifier (IC102)
“H”: power on (play mode)
69
XSPOWER
O
Power on/off control signal output for analog power supply to the DC/DC converter circuit
“L”: power on
70
RTCCE
O
Chip enable signal output to the real time clock (IC703) “H” active
71
DSPRST
O
Reset signal and power down detection signal output to the digital signal processor (IC104)
“H”: reset or power down
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