NEC PD17062 User Manual
Page 12
12
µ
PD17062
Pin No.
DIP QFP
(GC)
Symbol
Description
Output type
At power-on reset
P1A
3
|
P1A
0
P1B
3
|
P1B
0
RED
GREEN
BLUE
BLANK
H
SYNC
V
SYNC
P1C
3
/ADC
1
P1C
2
P1C
1
ADC
0
P0B
3
/HSCNT
P0B
2
/TMIN
P0B
1
P0B
0
/SI
P0A
3
/SO
P0A
2
/SCK
P0A
1
/SCL
P0A
0
/SDA
21
|
24
26
|
29
30
31
32
33
34
35
36
|
38
39
40
|
43
44
|
47
20
|
24
27
|
30
31
32
33
34
35
36
38
|
45
46
47
|
50
51
|
54
4-bit output port. This N-ch open-drain output
port has an intermediate withstand voltage.
4-bit I/O port. Each bit can be set for input or
output.
Outputs the character data corresponding to R, G,
and B of the IDC display. The output is active-
high.
Outputs the blanking signal for cutting the
video signal of the IDC display. The output is
active-high.
Inputs the horizontal synchronizing signal of the
IDC display. The input must be active-low.
Inputs the vertical synchronizing signal of the IDC
display. The input must be active-low. The input
signal can generate an interrupt.
Input of port 1C and A/D converter
• P1C
3
to P1C
1
3-bit I/O port
• ADC
1
Input of a 4-bit A/D converter
Input of a 4-bit A/D converter
Serial interface and input for port 0B, port 0A,
horizontal synchronizing signal counter, and
timer
• P0A
3
to P0A
0
4-bit I/O port. Each bit can be set for input or
output.
• P0B
3
to P0B
0
4-bit I/O port. Each bit can be set for input or
output.
• HSCNT
Inputs the count of the horizontal
synchronizing signal. The input is self-
biased.
• TMIN
Timer input. The pin inputs the commercial
power to be used for the clock.
• SI, SO, SCK
Input/output for the three-wire serial interface
• SI: Serial data input
• SO: Serial data output
• SCK: Shift clock input/output
• SDA, SCL
Input/output for the two-wire serial interface
• SCL: Serial clock input/output
• SDA: Serial data input/output
N-ch open-drain
CMOS push-pull
CMOS push-pull
CMOS push-pull
—
—
CMOS push-pull
—
N-ch open-drain
(P0A
1
, P0A
0
)
CMOS push-pull
(Other than P0A
1
or P0A
0
)
Undefined
Input
Low level
Low level
Input
Input
Input
Input
Input