参数资料
型号: SAB80C517A-N18-T3
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 18 MHz, MICROCONTROLLER, PQCC84
封装: PLASTIC, LCC-84
文件页数: 89/137页
文件大小: 2089K
代理商: SAB80C517A-N18-T3
Semiconductor Group
5 - 20
On-Chip Peripheral Components
Detailled Description of the Oscillator Watchdog Unit
Figure 5-7 shows the block diagram of the oscillator watchdog unit. It consists of an internal RC
oscillator which provides the reference frequency for the comparison with the frequency of the on-
chip oscillator. The RC oscillator can be enabled/disabled by the control pin OWE . If it is disabled
the complete unit has no function.
Figure 5-7
Oscillator Watchdog Unit
Special Function Register IP0 (Address 0A9H)
Reset value of IP0 is 00H.
Bit
Function
OWDS
Oscillator watchdog timer status flag.
Set by hardware when an oscillator watchdog reset occurred. Can be cleared or
set by software.
765
432
10
MSB
LSB
Bit No.
IP0
0A9H
These bits are not used in controlling the fail safe mechanisms.
OWDS
WDTS
IP0.5
IP0.4
IP0.3
IP0.2
IP0.1
IP0.0
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