参数资料
型号: MC68HC05C9AB
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, PDIP42
封装: SHRINK, PLASTIC, DIP-42
文件页数: 118/160页
文件大小: 4128K
代理商: MC68HC05C9AB
NON-DISCLOSURE
AGREEMENT
REQUIRED
Capture/Compare Timer
General Release Specification
MC68HC05C9A Rev. 4.0
Capture/Compare Timer
8.4 Timer I/O Registers
The following I/O registers control and monitor timer operation:
Timer control register (TCR)
Timer status register (TSR)
Timer registers (TRH and TRL)
Alternate timer registers (ATRH and ATRL)
Input capture registers (ICRH and ICRL)
Output compare registers (OCRH and OCRL)
8.4.1 Timer Control Register (TCR)
The timer control register, shown in Figure 8-2, performs these
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
Figure 8-2. Timer Control Register (TCR)
ICIE — Input Capture Interrupt Enable
This read/write bit enables interrupts caused by an active signal on
the TCAP pin. Resets clear the ICIE bit.
1 = Input capture interrupts enabled
0 = Input capture interrupts disabled
$0012
Bit 7
654321
Bit 0
Read:
ICIE
OCIE
TOIE
000
IEDG
OLVL
Write:
Reset:
000000
U
0
= Unimplemented
U = Undetermined
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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