参数资料
型号: MC68HC05P9AMDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 154/158页
文件大小: 3885K
代理商: MC68HC05P9AMDW
Timer
I/O Registers
Timer
Timer Control
Register
The timer control register (TCR) performs the following functions:
Enables input capture interrupts
Enables output compare interrupts
Enables timer overflow interrupts
Controls the active edge polarity of the TCAP signal
Controls the active level of the TCMP output
ICIE — Input Capture Interrupt Enable
This read/write bit enables interrupts caused by an active signal on
the PD7/TCAP pin. Reset clears the ICIE bit.
1 = Input capture interrupts enabled
0 = Input capture interrupts disabled
OCIE — Output Compare Interrupt Enable
This read/write bit enables interrupts caused by an active signal on
the TCMP pin. Reset clears the OCIE bit.
1 = Output compare interrupts enabled
0 = Output compare interrupts disabled
TOIE — Timer Overflow Interrupt Enable
This read/write bit enables interrupts caused by a timer overflow.
Reset clears the TOIE bit.
1 = Timer overflow interrupts enabled
0 = Timer overflow interrupts disabled
Bits 4–2 — Unused
These are read/write bits that always read as logic 0s.
$0012
Bit 7
654321
Bit 0
Read:
ICIE
OCIE
TOIE
0
IEDG
OLVL
Write:
Reset:
000000
U
0
U = Unaffected
Figure 51. Timer Control Register (TCR)
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