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16. Terminal Function of ICs
16.1. IC201 (C2BBFD000340): / System Control
I/O
Pin
Terminal
No.
Name
1
I
Power supply terminal
V
cc
2
VREF
I
Reference voltage input
3
-
GND terminal
AV
SS
4
SYNC
I
Power failure detect signal input
5
SUBQ
I
Sub-code Q data signal input
6
SQCK
O
Sub-code Q resistor clock signal
output
7
BLKCK
I
Sub code block clock signal
input
8
B REQ
I
Serial communication request
signal input from FL display/
System control IC
9
B CS
O
Serial communication CS signal
output for FL display/System
control IC
10 B CLK
O
Serial communication clock
signal output for FL display/
System control IC
11 DATA O
O
Serial communication data
signal output for FL display/
System control IC
12 DATA I
I
Serial communication data
signal input from FL display/
System control IC
13
CW
O
Loading motor control signal
(OPEN) output
14
CCW
O
Loading motor control signal
(CLOSE) output
15 CNV
-
GND terminal
SS
16 SERVO
O
Reset signal output
RST
17
NC
-
Not used, open
18 RESET
I
Reset signal input
19
X IN
I
Oscillator connected terminal (F=
6 MHz)
20 X OUT
O
Function
19
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