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Pin No.
Pin Name
I/O
Description
61
ALE
O
Address latch enable signal output to the flash memory (IC671)
(Used for the SPP-A2480 model)
62
CLE
O
Command latch enable signal output to the flash memory (IC671)
(Used for the SPP-A2480 model)
63 to 71
GPIO5 to GPIO13
I/O
Not used (open)
72
GPIO14
I
Model setting terminal “L”: SPP-A2480 , “H”: SPP-S2430
73
GPIO15
I
DIAL MODE switch (S252) input terminal “L”: T (tone) , “H”: P (pulse)
74
GND
—
Ground terminal
75
VCC
—
Power supply terminal (+5V)
76 to 82
DGPIO15 to
DGPIO9
I/O
Not used (open)
83
DGPIO8
I/O
Not used (pull up)
84 to 91
DGPIO7 to
DGPIO0
I/O
Two-way data bus with the flash memory (IC671) (Used for the SPP-A2480 model)
92
GND
—
Ground terminal
93
VCC
—
Power supply terminal (+5V)
94
DRDN
O
Read enable signal output to the flash memory (IC671) “L” active
(Used for the SPP-A2480 model)
95
DWRN
O
Write enable signal output to the flash memory (IC671) “L” active
(Used for the SPP-A2480 model)
96 to100
AGPIO0 to
AGPIO4
I/O
Not used (open)