参数资料
型号: MC68HC16S2CPU25
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 25.17 MHz, MICROCONTROLLER, PQFP100
封装: TQFP-100
文件页数: 18/104页
文件大小: 812K
代理商: MC68HC16S2CPU25
MOTOROLA
MC68HC16S2
20
MC68HC16S2TS/D
Figure 9 System Protection Block
3.4.1 System Protection Control Register
The system protection control register controls the software watchdog timer, bus monitor, and halt
monitor. This register can be written only once following power-on or reset, but can be read at any time.
SWE — Software Watchdog Enable
0 = Software watchdog disabled
1 = Software watchdog enabled
SWP — Software Watchdog Prescaler
This bit controls the value of the software watchdog prescaler.
0 = Software watchdog clock not prescaled
1 = Software watchdog clock prescaled by 512
SYPCR — System Protection Control Register
$YFFA21
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NOT USED
SWE
SWP
SWT[1:0]
HME
BME
BMT
RESET:
1
MODCLK
0
SYS PROTECT BLOCK
MODULE CONFIGURATION
AND TEST
RESET STATUS
HALT MONITOR
BUS MONITOR
SPURIOUS INTERRUPT MONITOR
SOFTWARE WATCHDOG TIMER
PERIODIC INTERRUPT TIMER
2
9
PRESCALER
CLOCK
IRQ[7:1]
BERR
RESET REQUEST
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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