RTE-V831-PC
USER’S MANUAL (Rev. 2.00)
4
5.4.
SWITCH 2 (SW2)
SW2 is a switch for selecting the I/O address of the ISA bus. Switches 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 00xH and 03FxH. When a switch is open, it corresponds to 1. When it is
closed, it corresponds to 0.
SW2
1
2
3
4
5
6
7
8
ISA address
A4
A5
A6
A7
A8
A9
A10
A11
SW2-to-ISA Address Correspondence
5.5.
LED
The LEDs are used to indicate statuses, as listed below.
LED
Description
POWER
Lights when power is supplied to the RTE-V831-PC board.
PLY
Lights in green when voice is output.
Lights in red if an error occurs during voice output.
REC
Lights in green when voice is recorded.
Lights in red if an error occurs during voice recording.
TOVER
Lights when a time-out occurs.
FLBUSY
Lights while the flash ROM is busy (during a write operation, erasure, etc.)
LED Indication
5.6.
TEST PINS FOR ROM EMULATOR (TP)
Test pins are used to connect a ROM emulator. They accept control signals from the ROM emulator.
The following table lists the signal names and functions related to each test pin.
Signal
Input/
output
Function
RESET-
Input
When a low level is supplied to this test pin, the CPU is reset.
A reset request signal from the ROM emulator is connected to the test pin.
The test pin is pulled up with 1k
Ω
.
NMI-
Input
When a low level is supplied to this test pin, an NMI signal is given to the CPU. This
signal can be masked by software, so it is necessary to reset the mask. (See Section
8.9.)
An NMI request signal from the ROM emulator is connected to the test pin.
The test pin is pulled up with 1k
Ω
.
GND
---
This test pin is at a ground level. The ground level of the ROM emulator is connected
to the test pin.
Test Pin Functions