Acrosser AR-B1551 - Manual (Page 26)

AR-B1551 User’s Guide
24
3.2.22 LVDS Connector (LVDS1)
1 13
26 14
LVDS1 Signal LVDS1 Signal
1 TXOUT0- 14 GND
2 TXOUT0+ 15 GND
3 TXOUT1- 16 VTX5
4 TXOUT1+ 17 VTX5
5 TXOUT2- 18 NC
6 TXOUT2+ 19 GND
7 TXCLK- 20 GND
8 TXCLK+ 21 VTX12
9 TXOUT3- 22 VTX12
10 TXOUT3+ 23 GND
11 VTKBP 24 NC
12 VTX5
25 NC
13 VTX5 26 NC
3.2.23 LVDS Supported Voltage Select (JP3)
Factory Preset
3.3V 5V
1
2
3
4
5
6
1
2
3
4
5
6
3.3 WATCHDOG TIMER
This section describes how to use the Watchdog Timer disabled, enabled, and trigger. The AR-B1570 is equipped
with a programmable time-out period watchdog timer that occupies I/O post 214H. User can use the program to
enable the watchdog timer. Once you enable the watchdog timer, the program should trigger it every time before it
times out. And because of the system hang up, your program fails to trigger and disable the timer before it times
out. It will generate a reset signal to reset the system. The time-out period can be programmed to be 0 to 63
seconds.
Watchdog
Register
Time Base
Counter and
Compartor
RESET
Enable(D7)
Time Factor
(D0-D5)
Write and
Trigger
Watchdog Block Diagram