20
TC-S3
• MAIN BOARD IC311 PT8300-S (LED DRIVE, MOTOR DRIVER)
Pin No. Pin Name I/O Description
1 VSS —
Ground terminal
2 RESET_B I
Reset signal input terminal Nor used
3 CLK I
Serial data transfer clock signal input from the PT8300-S (IC310)
4 LATCH I
Serial data latch pulse input from the PT8300-S (IC310)
5 P15 O
Not used (connected to pin 6)
6 P14 O
LED drive signal output of the B-FWD indicator (D302) “L”: LED on
7 P13 O
Not used (connected to pin 8)
8 P12 O
LED drive signal output of the B-REV indicator (D303) “L”: LED on
9 P11 O
Not used (connected to pin q;)
10 P10 O
LED drive signal output of the A-REV indicator (D301) “L”: LED on
11 P9 O
Not used (connected to pin qs)
12 P8 O
LED drive signal output of the A-FWD indicator (D300) “L”: LED on
13 LATCHO O
Not used (open)
14 CLKO O
Not used (open)
15 DO1 O
Not used (open)
16 DI2 I
Not used (fixed at “L”)
17 – 21 P7 – P3 O
Not used (open)
22 P2 O
Not used (connected to pin wd)
23 P1 O
Capstan motor on/off control signal output terminal “H”: motor on
24 P0 O
High/normal speed selection signal output of the capstan motor
“H”: normal speed, “L”: high speed
25 DO2 O
Serial data output to the PT8300-S (IC310)
26 DI1 I
Serial data input from the PT8300-S (IC310)
27 PULLUP I
P8 to P15 Control pin for Pull-up resistor (fixed at “L”)
28 VCC —
Power supply terminal (+5V)
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