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参数资料
| 型号： | MC68HC05SR3FB |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | QFP-44 |
| 文件页数： | 40/96页 |
| 文件大小： | 3143K |
| 代理商： | MC68HC05SR3FB |
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MC68HC05SR3
Freescale
5-9
RESETS AND INTERRUPTS
5
The KBIE bit in the Miscellaneous Control Register controls the master enable for the keyboard
interrupts.
KBIE — KeyBoard Interrupt Enable
1 (set)
–
Keyboard interrupts master enabled.
0 (clear) –
Keyboard interrupts master disabled.
KBIC — KeyBoard Interrupt Clear
This is a write-only bit and always read as “0”.
1 (set)
–
Writing a “1” clears the keyboard interrupt latch.
0 (clear) –
Writing a “0” has no effect.
The Keyboard Interrupt Mask Register (KBIMR) masks individual keyboard interrupt pins and
setting of the internal pull-up resistors on port A.
KBEx — PAx Keyboard Interrupt Enable
1 (set)
–
Keyboard interrupt enabled for PAx. A 20K
internal pull-up resistor
is connected. High to low transition on PAx will cause a keyboard
interrupt.
0 (clear) –
Keyboard interrupt for PAx pin is masked. Any transitions on PAx will
not set any flags.
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Miscellaneous Control Register
$0C
KBIE
KBIC
INTO
INTE LVRE
SM
IRQ2F IRQ2E 0001 0000
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
KBIMR
$0B
KBE7 KBE6 KBE5 KBE4 KBE3 KBE2 KBE1 KBE0 0000 0000
TPG
43
05SR3.Book Page 9 Thursday, August 4, 2005 1:08 PM
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相关代理商/技术参数 |
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|---|---|
| MC68HC05SU3A | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core |
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