CT-XSL01 | User’s Manual
Watchdog Timer:
Logical Device: 8
CR F0h. Watchdog Timer I (WDT1) and KBC P20 Control Mode Register
Location: Address F0h
Attribute: Read/Write
Power Well: VCC
Reset by: LRESET# or PWROK
Default: 00h
Size: 8 bits
CR F1h. Watchdog Timer I (WDT1) Counter Register
Location: Address F1h
Attribute: Read/Write
Power Well: VCC
Reset by: LRESET# or PWROK
Default: 04h
Size: 8 bits
35
Chapter 3: Features & Interface
BIT
READ / WRITE
DESCRIPTION
7/5
Reserved.
4
R/W
Watchdog Timer | count mode is 1000 times faster.
0: Disable.
1: Enable.
(If bit-3 is 0, the count mode is 1/1000 second mode.)
(If bit-3 is 1, the count mode is 1/1000 minutes mode.)
3
R/W
Select Watchdog Timer | count mode.
0: Second Mode.
1: Minute Mode.
2
R/W
Enable the rising edge of KBC reset (P20) to issue a time-out event.
0: Disable.
1: Enable.
1
R/W
Disable / Enable the Watchdog Timer | output low pulse to the
KBRST# pin (PIN59)
0: Disable.
1: Enable.
0
Reserved.
BIT
READ / WRITE
DESCRIPTION
7/0
R/W
Watchdog Timer I Time-out value. Writing a non-zero value to
this register causes the counter to load the value into the Watch
Dog Counter and start counting down. If CR F2h, bits 7 and 6 are
set, any Mouse Interrupt or Keyboard Interrupt event causes the
previously-loaded, non-zero value to be reloaded to the Watch
Dog Counter and the count down resumes. Reading this register
returns the current value in the Watch Dot Counter, not the
Watch Dog Timer Time-out value.
00h: Time-out Disable
01h: Time-out occurs after 5.03x10
7
CLKIN cycle time, by analogy.
(5.03x10
7
x (1/48MHz) = 1.046s)
Summary of Contents for CT-XSL01 Series
Page 1: ...USER S MANUAL CT XSL01 Series Mini ITX Industrial Motherboard...
Page 8: ...Chapter 1 Product Introductions...
Page 11: ...CT XSL01 User s Manual 11 1 3 Block Diagram Chapter 1 Product Introductions...
Page 12: ...CT XSL01 User s Manual 12 1 4 Board Dimensions Unit mm Chapter 1 Product Introductions...
Page 13: ...Chapter 2 Jumper and Connectors...
Page 15: ...CT XSL01 User s Manual 15 2 1 2 Bottom View 2 1 3 Back Panel View Chapter 2 Jumper Connectors...
Page 31: ...Chapter 3 Features Interface...
Page 36: ...Chapter 4 BIOS Setup...
Page 53: ...CT XSL01 User s Manual 53 4 3 13 NVMe Configuration Chapter 4 BIOS Setup...
Page 65: ...Copyright Premio Inc All Rights Reserved www premioinc com...