Contec IPC-BX/M560, Руководство пользователя

Страница: 76 / 90

Functions of Components
IPC-BX/M560(PCW)
65
SW1 (General-purpose Switches for the User)
Bits 1 to 4 in SW1 serve as RAS feature setting switches.
Bits 5 and 6 in SW1 serves as general-purpose switches for the user.
This section describes how to use bits 5 and 6.
For bits 1 to 4, see the "RAS Features" and "Watchdog Timer" sections.
I/O Address and data
I/O address: 013Dh
Data can be read in the following format:
X
b7
bit6 bit5 X X X X
b5 b4 b3 b2 b1 b0
SW1 bit5 ON : 0
OFF : 1
SW1 bit6 ON : 0
OFF : 1
Figure 5.20. Data in General-purpose Switches for the User
SW1
1 2 3 4 5 6
ON
OFF
Figure 5.21. SW1 Factory Settings
Reset Switch
The BOX-PC has a hardware reset switch. The switch is hard to
press, by design, to prevent it from being pressed accidentally. To
press it, therefore, use a pointed object.
ALARM LED
If the PO2M (D7) bit in the event output control port (013Bh) has been
set to 1, the ALARM LED comes on when a WDT time-out occurs or
when the P2 bit in the general-purpose I/O port (0138h) is set.