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KDC-MP738U/W7541U
/W7541UY/X792/X8009U
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PANEL MICROCOMPUTER 703134AGJ018A (X16-624: IC4)
Pin No.
Pin Name
I/O
Application
Processing / Operation / Description
1~7
D14-D8
I/O Data input/output
8
3.3VDD
-
3.3V
9
VSS
-
10~17
D7-D0
I/O Data input/output
18
FLGCP1
O
FL tone control
Control lighting time (brightness tone) with the
pulse interval
GCP=FLGCP2
19
NC
O
Output L
fi
xed
20
SYS_REQ
I
System
μ
-com communication request input
H: During data communication
21
SC_CON
I
System
μ
-com communication, panel operation
control
H: Panel operation
22
NC
O
Output L
fi
xed
23
2.5VDD
-
2.5V
24
VSS
-
25
PWM_VOL
O
PWM output
H: ON, L: OFF
26
PWM_MULTI
O
PWM output
H: ON, L: OFF
27
KS1
I/O Key scan output
Output L, Hi-Z: Switching
28
TDO
O
Be used during debugging
NC during normal operation
29
TDI
O
Be used during debugging
NC during normal operation
30
FL_BK
O
FL BK control
L: FL goes on, H: FL goes off
31
KS2
I/O Key scan output
Output L, Hi-Z: Switching
32
TRST
I
Be used during debugging
H or L during debugging
33,34
KS3,KS4
I/O Key scan output
Output L, Hi-Z: Switching
35
TMS
O
Be used during debugging
NC during normal operation
36
TCM
O
Be used during debugging
NC during normal operation
37
3.3VDD
-
38
EVSS
-
39
KS5
I/O Key scan output
Output L, Hi-Z: Switching
40~42
KR1-KR3
I
Key return input
43
FLGCP2
O
FL tone control
Control lighting time (brightness tone) with the
pulse interval
GCP=FLGCP2
44
PAN_REQ
O
Panel communication request output
H: During data communication
45
SYS_DATA
I
Data reception from system
μ
-com
UART communication 500kbps
46
PAN_DATA
O
Data transmission from the panel
UART communication 500kbps
47
FL CLK
O
FL serial communication reference clock
Reference clock 4.125MHz @66MHz
48
KR4 INT
I
Key return input (Not processed yet)
Interrupt enable
49
FL_DATA3
O
FL serial control data SI3
50
CLK_IN2
I
Serial sync clock input
Sync to FL_CLK
51
FL_EN
O
FL skip shift control
H: Skip odd numbers
L: Skip even numbers
52
FL_DATA2
O
FL serial control data SI2
MICROCOMPUTER’S TERMINAL DESCRIPTION