RTE-V821-PC
USER’ S MANUAL
11
4. INSTALLATION AND USE
The RTE-V821-PC board is designed to be installed in the ISA bus slot of a PC/AT or compatible
(hereafter called the PC). However, it can also be used as a standalone, if it is powered from
an external power supply. When the board is used for testing purposes or with the Multi
debugger, communication software called RTE for Windows must be installed in the PC. Refer
to the RTE for Windows Installation Manual for installation and test methods.
4.1. BOARD SETTING
The RTE-V821-PC board has DIP switches. The DIP switches can be used to set up the
evaluation board. The switch layout is shown below.
SW 2
P
O
W
E
R
C
S
0
C
S
1
C
S
2
C
S
3
T
O
V
E
R
P
06
P
07
SCC/
TIMER
LED
TP
DRAM SIMM
JCPU
SWRESET
JPOWER
JEXT
V821
JS
IO
JS
U
B
P
O
R
T
SRAM
SW 1
ROM
PLD
PLD
N
M
I-
R
D
_W
R
A
L
L
-
R
E
S
E
T
-
G
N
D
PIO
OSC1
Switches on the RTE-V821-PC Board
SW1 is a switch for selecting the I/O address of the ISA bus. Switch contacts 1 to 8 correspond
to ISA addresses A4 to A11, respectively (A12 to A15 are fixed at 0). This means that the I/O
address that can be selected ranges between 000xH and 0FFxH. When a switch contact is
open, it corresponds to 1. When it is closed, it corresponds to 0. Generally, SW1 is set to any
value between 20xH and 3FxH.
SW1
contact
1
2
3
4
5
6
7
8
Address
A4
A5
A6
A7
A8
A9
A10
A11
I/O address
ON/
OFF
0
0
0
0
0
1
0
0
020xH
(factory-set)
SW1-to-ISA I/O Address Correspondence
SW2 is a switch for general-purpose input ports. For the Multi monitor in the factory-installed
ROM, SW2 is used to set the RS-232C baud rate and profiler timer period.
SW2
contact
1
2
Baud rate
Setting
ON
OFF
ON
OFF
ON
ON
OFF
OFF
Not used
38400 baud
19200 baud
9600 baud (factory-set)
Baud Rate Setting
