41
SPP-A2770
•
BASE MAIN BOARD IC402 DL16561B11BQC (DSP)
Pin No.
Pin Name
I/O
Description
1
7SEG 1F
O
7 segments LED (LED701) drive signal output
2
7SEG 1G
O
7 segments LED (LED701) drive signal output
3
7SEG 2A
O
7 segments LED (LED701) drive signal output
4
7SEG 2B
O
7 segments LED (LED701) drive signal output
5
7SEG 2C
O
7 segments LED (LED701) drive signal output
6
7SEG 2D
O
7 segments LED (LED701) drive signal output
7
7SEG 2E
O
7 segments LED (LED701) drive signal output
8
7SEG 2F
O
7 segments LED (LED701) drive signal output
9
7SEG 2G
O
7 segments LED (LED701) drive signal output
10
AGPIO14
O
MIC gain control signal output “L”: MIC REC Not used (open)
11
AGPIO15
I/O
Not used (open)
12
VCC
—
Power supply terminal (+5V)
13
GND
—
Ground terminal
14 to 19
EGPIO0 to
EGPIO5
I/O
Not used (open)
20
EGPIO6
I/O
Not used (fixed at “L”)
21
EGPIO7
I/O
Not used (open)
22
EGPIO8
I/O
Not used (fixed at “L”)
23, 24
EGPIO9,
EGPIO10
I/O
Not used (open)
25
SHDO
O
Serial data output to the system controller (IC301)
26
SHRNW
I
Data read/write selection signal input from the system controller (IC301)
“L”: data write, “H”: data read
27
SHSC
I
Serial data transfer clock signal input from the system controller (IC301)
28
GND
—
Ground terminal
29
SHDI
I
Serial data input from the system controller (IC301)
30
ACKN
O
Acknowledge signal output to the system controller (IC301) “L” active
31
GND PA
—
Ground terminal
32
SPOUTP
O
Analog audio signal (+) output to the speaker
33
SPOUTN
O
Analog audio signal (–) output to the speaker
34
VCCPA
—
Power supply terminal (+5V)
35
HSOUT
O
Transmit data output terminal
36
LOUT
O
Receive data output terminal
37
VCCA
—
Power supply terminal (+5V)
38
LIN
I
Transmit data input terminal
39
LGS
O
Feedback output of transmit data input signal
40
DCIN
I
Not used (open)
41
CIDIN
I
Caller ID detection signal (–) input terminal
42
CIDIP
I
Caller ID detection signal (+) input terminal
43
CIDO
O
Feedback output of caller ID detection input signal
44
HMGS
O
Feedback output of receive data input signal
45
HMIN
I
Receive data input terminal
46
GNDA
—
Ground terminal
47
MIN
I
Analog audio signal input from the microphone
48
MGS
O
Feedback output of analog audio input signal
Summary of Contents for SPP-A2770 - 2.4ghz Cordless Telephone
Page 55: ...55 SPP A2770 MEMO ...