Specifications

S1C6P466 TECHNICAL MANUAL EPSON 133
APPENDIX A PROM PROGRAMMING
A.2.2 System connection and setup for serial programming (S1C88/S1C63 Serial Connector)
Connect the Universal Writer to the personal computer and install the S1C88/S1C63 Serial Connector to
the Universal Writer.
EPSON
U
N
IV
ERSA
L RO
M
W
RITER II
I
O
DSW
P2
P
O
W
E
R
RS232C
AC IN
POWER
FUSE
V
SS
TXD
RXD
CLK1M
SCLK
V
PP
RS-232C
EPSON
5V
3V
E0C88/E0C63
SERIAL CONNECTOR
READY
S1C88/S1C63 Serial Connector
To target board
Power cable
RS-232C cable
Fig. A.2.2.1 System connection diagram
The system should be connected according to the following procedure.
(1) Confirmation of power off status
Make sure the power for the personal computer and the Universal Writer is switched off.
(2) Connecting the power cable
A dedicated power cable is included in the Universal Writer package. Connect the power cable to the
AC IN connector on the rear panel of the Universal Writer.
(3) Connecting the RS-232C cable
Connect the Universal Writer and personal computer using the supplied RS-232C cable. The RS-232C
cable is for IBM-PC/AT use (9 pins - 9 pins).
Note: Secure the RS-232C cable with the connector screws to prevent malfunction.
(4) Installing the S1C88/S1C63 Serial Connector
Install the S1C88/S1C63 Serial Connector to the top connector of the Universal Writer. There is a
projection on the S1C88/S1C63 Serial Connector to prevent improper insertion. Line up the S1C88/
S1C63 Serial Connector to fit to the notch of the Universal Writer connector.
Note: When disconnecting the S1C88/S1C63 Serial Connector, make sure the power for the Universal
Writer is off.
(5) Selecting the program voltage
Select 5 V program-voltage using the 5V/3V switch on the S1C88/S1C63 Serial Connector.
(6) Confirmation of DIP switch status
∗ The name 'Universal ROM Writer II' on the
development tool is the old name of the product.
Check to see that the DIP switch (DSW)
located at the back panel of the Univer-
sal Writer has been set as in Figure
A.2.2.2 (factory setting).
1 2 3 4
D S W
5 6 7 8
Fig. A.2.2.2 DIP switch settings
Note: Set SW1 and SW2 up,
and SW3 to SW8 down.