参数资料
型号: MC68HC11ED0CP2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 66/108页
文件大小: 1672K
代理商: MC68HC11ED0CP2
Technical Summary
MC68HC11ED0 — Rev. 1.0
Resets and Interrupts
Resets and Interrupts
5.4 System Configuration Options Register
Refer to Figure 5-1 for a description of the system configuration options
register (OPTION)
Bits [7:6] — Unimplemented
Always read as 0
IRQE — IRQ Select Edge Sensitive Only Bit
0 = Low level recognition
1 = Falling edge recognition
DLY — Enable Oscillator Startup Delay on Exit from Stop Mode Bit
0 = No stabilization delay on exit from stop mode
1 = Stabilization delay enabled on exit from stop mode
CME — Clock Monitor Enable Bit
0 = Clock monitor disabled; slow clocks can be used
1 = Slow or stopped clocks cause clock failure reset.
Bit 2 — Unimplemented
Always reads 0
CR[1:0] — COP Timer Rate Select Bit
Refer to description of the NOCOP bit in 5.6 Configuration Control
Address:
$0039
Bit 7
6
54321
Bit 0
Read:
IRQE(1)
DLY(1)
CME
CR1(1)
CR0(1)
Write:
Reset:
00
010000
Note 1. Can be written only once in the first 64 cycles out of reset in normal modes or at any
time
in special modes.
= Unimplemented
Figure 5-1. System Configuration Options Register (OPTION)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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