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BASE KEY BOARD IC202 D16559UAC11AQC (DSP)
Pin No.
Pin Name
I/O
Description
1
SP LED
O
LED drive signal output of the SPEAKERPHONE indicator (D211) “L”: LED on
2
TBUSY
O
Busy signal output to the system controller (IC8) “H”: in the midst dialing
3 to 5
ENB1 to ENB3
O
Telephone mode signal output to the system controller (IC8)
6
TONE/PULSE
I
DIAL MODE switch (S1) input terminal “L”: tone mode, “H”: pulse mode
7
TAD ACT
O
Operation status signal output to the system controller (IC8)
8
BELL IN
I
Detect signal input of the ringer coming “L”: ringer coming
9
SP MUTE
O
Speaker muting control signal output to the speaker amplifier (IC201) “H”: muting on
10
MIC MUTE
O
Microphone muting control signal output terminal “H”: muting on
11
DTMF
O
DTMF tone signal output terminal
12
DVCC
—
Power supply terminal (+5V) (for digital)
13
DGND
—
Ground terminal (for digital)
14
2C
O
7 segments LED drive signal output (for 2nd figure-3)
15
2E
O
7 segments LED drive signal output (for 2nd figure-5)
16
2D
O
7 segments LED drive signal output (for 2nd figure-4)
17
1D
O
7 segments LED drive signal output (for 1st figure-4)
18
1E
O
7 segments LED drive signal output (for 1st figure-5)
19
1C
O
7 segments LED drive signal output (for 1st figure-3)
20
1G
O
7 segments LED drive signal output (for 1st figure-7)
21
1A
O
7 segments LED drive signal output (for 1st figure-1)
22
1F
O
7 segments LED drive signal output (for 1st figure-6)
23
1B
O
7 segments LED drive signal output (for 1st figure-2)
24
2B
O
7 segments LED drive signal output (for 2nd figure-2)
25
2F
O
7 segments LED drive signal output (for 2nd figure-6)
26
2A
O
7 segments LED drive signal output (for 2nd figure-1)
27
2G
O
7 segments LED drive signal output (for 2nd figure-7)
28
DGND
—
Ground terminal (for digital)
29
WD OUT
O
Clear the watch dog timer signal output to the
30
BEEP
O
Beep sound output terminal
31
PAGND
—
Ground terminal (for analog)
32
SP OUTP
O
Speaker output terminal
33
SP OUTN
O
Speaker output terminal Not used (open)
34
PAVCC
—
Power supply terminal (+5V) (for analog)
35
HS OUT
O
Not used (open)
36
LINE OUT
O
Line output terminal
37
PAVCC
—
Power supply terminal (+5V) (for analog)
38
LINE IN
I
Line input to the internal operational amplifier
39
LGS
O
Line output from the internal operational amplifier
40
DCIN
I
Not used (open)
41
CIDIN
I
Not used
42
CIDIP
I
Not used
43
CIDO
O
Not used
44
HMGS
O
Line and beep sound output from the internal operational amplifier
45
HMIN
I
Line and beep sound input to the internal operational amplifier
46
AGND
—
Ground terminal (for analog)
47
MIN
I
Microphone input to the internal operational amplifier
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