45
HCD-EC70
Pin No.
Pin Name
I/O
Description
49
P74/SDA/SC2
I
Data transfer request signal input from the MP3 decoder
50
P75/SCL/SO2
I
Acknowledge signal input from the MP3 decoder
51
MD2
I
Input pin for selecting operation mode (Connected to ground)
52
MD1
I
Input pin for selecting operation mode (Connected to +3.3V)
53
MD0
I
Input pin for selecting operation mode (Connected to +3.3V)
54
RSTX
I
System reset signal input terminal
55
V0/P80
O
Tuner chip enable signal output to the tuner
56
V1/P81
O
Clock signal output to the tuner
57
V2/P82
O
Data output to the tuner
58
V3
I
Reference power terminal of LCD controller/driver
59, 60
COM0, COM1
O
Common signal output to the LCD
61, 62
P83/COM2, P84/COM3
O
Common signal output to the LCD
63, 64
SEG0, SEG1
O
Segment signal output to the LCD
65
VCC
—
Power supply terminal (+3.3V)
66
VSS
—
Ground terminal
67 to 84
SEG2 to SEG19
O
Segment signal output to the LCD
85 to 89 SEG20/P10 to SEG24/P14
O
Segment signal output to the LCD
90
VCC
—
Power supply terminal (+3.3V)
91
VSS
—
Ground terminal
92
X1
I
Resonator input terminal (4.19MHz)
93
X0
O
Resonator output terminal (4.19MHz)
94 to 96 SEG25/P15 to SEG27/P17
O
Segment signal output to the LCD
97 to 100 SEG28/P20 to SEG31/P23
O
Segment signal output to the LCD
