参数资料
型号: M68HC05M68H
厂商: Motorola, Inc.
英文描述: HCMOS Microcontroller Unit
中文描述: HCMOS微控制器
文件页数: 68/130页
文件大小: 1541K
代理商: M68HC05M68H
Capture/Compare Timer
Advance Information
MC68HC705P6A
Rev. 2.0
68
Capture/Compare Timer
MOTOROLA
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
The timer control register (TCR), 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
Address:
$0012
Bit 7
6
5
4
3
2
1
Bit 0
Read:
ICIE
OCIE
TOIE
0
0
0
IEDG
OLVL
Write:
Reset:
0
0
0
0
0
0
U
0
= Unimplemented
U = Undetermined
Figure 8-2. Timer Control Register (TCR)
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