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APPENDIX PERIPHERAL CIRCUIT BOARDS FOR S1C63656
(4) Register monitor pins
These pins correspond one-to-one to the registers and motor driver outputs listed below. The pin
outputs a high for logic "1" and a low for logic "0".
Monitor
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
∗ DONE: The monitor pin outputs a high while the
LED lights when initialization of this board
completes without problems.
(5) CR oscillation frequency adjusting control
This control allows you to adjust the OSC3 oscillation frequency. This function is effective when
ceramic oscillation is selected for the OSC3 oscillation circuit by mask option as well as when CR
oscillation is selected. The oscillation frequency can be adjusted in the range of approx. 100 kHz to 8
MHz. Note that the actual IC does not operate with all of these frequencies; refer to Chapter 7,
"Electrical Characteristics", to select the appropriate operating frequency.
(6) CR oscillation frequency monitor pins
These pins allow you to monitor the clock waveform from the CR oscillation circuit with an oscillo-
scope. Note that these pins always output a signal waveform whether or not the oscillation circuit is
operating.
158
Name
LED No.
DONE *
1
–
2
–
3
–
4
–
5
OSCC
6
CLKCHG
7
LPWR
8
SVDS0
9
SVDS1
10
SVDS2
11
SVDON
12
AO1
13
AO2
14
BO1
15
BO2
16
RESET
LED
Name
DONE *
–
–
–
–
OSCC
CLKCHG
LPWR
SVDS0
SVDS1
SVDS2
SVDON
AO1
AO2
BO1
BO2
Not used
Not used
OSC3 rough adjustment
OSC3 fine adjustment
OSC3 monitor pin (red)
Not used
GND pin (black)
EPSON
1
2
1
3
2
4
3
5
4
6
5
7
6
8
7
9
8
10
11
9
10
12
13
11
12
14
15
13
14
16
15
16
LED
Monitor pin
S1C63656 TECHNICAL MANUAL
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