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: 69/108页
文件大小: 1672K
代理商: MC68HC11ED0CP2
Resets and Interrupts
Highest Priority I-Bit Interrupt and Miscellaneous Register
MC68HC11ED0 — Rev. 1.0
Technical Summary
Resets and Interrupts
5.7 Highest Priority I-Bit Interrupt and Miscellaneous Register
RBOOT — Read Bootstrap ROM Bit
SMOD — Special Mode Select Bit
MDA — Mode Select A Bit
IRVNE — Internal Read Visibility/Not E Bit
PSEL[3:0] — Priority Select Bits
Can be written only while the I bit in the CCR is set (interrupts
disabled). These bits select one interrupt source to be elevated above
all other I bit related sources. See Table 5-3.
Address:
$003C
Bit 7
6
54321
Bit 0
Read:
RBOOT(1) SMOD(1)
MDA(1)
IRVNE
PSEL3
PSEL2
PSEL1
PSEL0
Write:
Reset:
UUUU
0101
1. RBOOT, SMOD, and MDA reset depends on power-up initialization mode and can only be
written only in special mode.
U = Undefined
Figure 5-4. Highest Priority I-Bit Interrupt
and Miscellaneous Register (HPRIO)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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