S3C44B0X

Manufacturer Part NumberS3C44B0X
DescriptionBGA
ManufacturerSamsung
S3C44B0X datasheets
 


Specifications of S3C44B0X

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S3C2400 RISC MICROPROCESSOR
WATCH-DOG TIMER SPECIAL REGISTERS
WATCH-DOG TIMER CONTROL REGISTER (WTCON)
Using the Watch-Dog Timer Control register, WTCON, you can enable/disable the watch-dog timer, select the clock
signal from 4 different sources, enable/disable interrupts, and enable/disable the watch-dog timer output.
The Watch-dog timer is used to resume the S3C2400X01 restart on mal-function after power-on; if controller restart is
not desired, the Watch-dog timer should be disabled.
If the user wants to use the normal timer provided by the Watch-dog timer, please enable the interrupt and disable
the Watch-dog timer.
Register
Address
WTCON
0x15300000
WTCON
Bit
Prescaler value
[15:8]
Reserved
[7:6]
Watch-dog timer
[5]
enable/disable
Clock select
[4:3]
Interrupt
[2]
enable/disable
Reserved
[1]
Reset
[0]
enable/disable
R/W
Description
R/W
Watch-dog timer control Register
Description
the prescaler value
8
The valid range is from 0 to (2
-1)
Reserved.
These two bits must be 00 in normal operation.
Enable or disable bit of Watch-dog timer.
0 = Disable Watch-dog timer
1 = Enable Watch-dog timer
This two bits determines the clock division factor.
00: 16
01: 32
10: 64
11: 128
Enable or disable bit of the interrupt.
0 = Disable interrupt generation
1 = Enable interrupt generation
Reserved.
This bit must be 0 in normal operation
Enable or disable bit of Watch-dog timer output for reset
signal:
1: Asserts reset signal of the S3C2400X01 at watch-dog
time-out
0: Disables the reset function of the watch-dog timer.
WATCHDOG TIMER
Reset Value
0x8021
Initial State
0x80
00
1
00
0
0
1
18-3