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EPSON
S1C63666 TECHNICAL MANUAL
APPENDIX S5U1C63000P1 MANUAL (PERIPHERAL CIRCUIT BOARD FOR S1C63666)
(8) R/f converter monitor pins and external part connecting socket
These monitor pins are used to check the R/f converter operation. The socket is used to connect
external resistors and a capacitor for R/f conversion.
RESET
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
RFIN (CN0)
GND
SEN0 (ST0)
SEN1 (ST1)
REF (SN0)
RFOUT
*
(ADOSC_A)
Not used
GND (black)
Capacitor
Reference
resistance
Sensor 1
Sensor 0
(9) CLK and PRG switch
If power to the ICE is shut down before circuit data downloading is complete, the circuit configura-
tion in this board will remain incomplete, and the debugger may not be able to start when you power
on the ICE once again. In this case, temporarily power off the ICE and set CLK to the 32K position and
the PRG switch to the Prog position, then switch on power for the ICE once again. This should allow
the debugger to start up, allowing you to download circuit data. After downloading the circuit data,
temporarily power off the ICE and reset CLK and PRG to the LCLK and the Norm position, respec-
tively. Then power on the ICE once again.
(10) IOSEL2
When downloading circuit data, set IOSEL2 to the "E" position. Otherwise, set to the "D" position.
(11) VC5
When the internal LCD power supply has been selected by mask option, you can turn this control to
fine-adjust the LCD drive power supply voltage. Note, however, that the LCD drive power supply
voltage in the actual IC is set according to the contents of the LCD contrast adjustment register.