RTE-V852-PC
USER’ S MANUAL (Rev. 1.10)
13
3.11. 7-SEGMENT LED [SOCKET BOARD] (LED_P1)
LED_P1 is a 7-segment LED, to which the P1 ports of the CPU are connected as shown in the table
below. When a bit is set to 1, the corresponding segment lights.
Segment
A
B
C
D
E
F
G
D.P.
Port
P10
P11
P12
P13
P14
P15
P16
P17
LED_P1 Correspondence
A
B
C
D
E
F
G
DP
3.12. LEDS [SOCKET BOARD]
The table below explains the LEDs on the Socket board.
Name
Description
LED_POWER
Lights when power is supplied to the board.
LED Status
3.13. SWITCH 1 [BASE BOARD] (SW1)
SW1 is the switch connected to the general-purpose input ports and read by software. When a switch
contact is OFF, it represents 1. When it is ON, it represents 0. See Sections 4.1 and 6.5 for details.
3.14. SWITCH 2 [BASE BOARD] (SW2)
SW2 is the switch used for selecting the I/O address of the ISA bus. Switch contacts 1 to 8
correspond to A4 to A11 of the ISA bus address (A12 to A15 are fixed at 0). Therefore, this switch
can be used to select an I/O address in the range of 000xH to 0FFxH. When a switch contact is OFF,
it represents 1. When it is ON, it represents 0 (see Section 4.1).
SW2 contact
1
2
3
4
5
6
7
8
Address
A4
A5
A6
A7
A8
A9
A10
A11
SW2-to-Address Correspondence
