参数资料
型号: IA88C00-PLC68I-R-01
厂商: Innovasic Semiconductor
文件页数: 25/80页
文件大小: 0K
描述: IC MCU 8BIT 20MHZ 68PLCC
标准包装: 285
芯体尺寸: 8-位
速度: 20MHz
连通性: EBI/EMI,UART/USART
外围设备: DMA,WDT
输入/输出数: 32
程序存储器类型: 外部程序存储器
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 68-LCC(J 形引线)
包装: 管件
IA88C00
Data Sheet
Microcontroller
As of Production Version -01
Copyright 2005
ENG 21 0 050519-00
www.Innovasic
Innovasic.com
Innovasic Semiconductor
Page 31 of 80
1.888.824.4184
Figure 28b. Watch Dog Timer and Stop Mode Recovery Register (WDT/SMR) R230 Bank0
Bit
7
6
5
4
3
2
1
0
D7
D6
D5
D4
D3
D2
D1
D0
WDT time-out
WDT
Enable
WDT in
Stop
WDT
Source
SMR
On
SMR Source
Initial Value
0
Read/Write
R/W
This register controls the Watchdog Timer time-out and Stop recovery mode.
D1, D0 Stop Mode Recovery source select.
Bit D0 and D1 determine the Stop Mode Recovery source.
D1
D0
0
Recovery from RESET only
0
1
Recovery from P22 and RESET
1
0
Recovery from P32 and RESET
1
Recovery from any input for Port 4 and RESET
A hardware reset forces D0 and D1 to zero.
D2 Stop Recovery Edge
A 1 in this position indicates that a rising edge on any one of the recovery sources wakes the IA88C00
from Stop mode. A 0 indicates falling edge recovery. The reset value is 0.
D3 XTAL1/RC Select for WDT
When a zero is written to D3, the clock of the WDT is driven by the on-board RC oscillator. If D3 is set to
1, the WDT is driven by XTAL1. D3 has a zero reset value.
D4 WDT Enable During STOP or HALT
When this bit is set, WDT is enabled during STOP or HALT. In this case, recovery from STOP or HALT
should be performed before the selected time-out. A 0 in this bit location disables the WDT while the
IA88C00 is stopped or halted. A hardware reset forces this bit to a zero.
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