參數(shù)資料
型號: MC68HC705P6AMDW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 101/130頁
文件大?。?/td> 1541K
代理商: MC68HC705P6AMDW
Capture/Compare Timer
Advance Information
MC68HC705P6A — Rev. 2.0
72
Capture/Compare Timer
MOTOROLA
8.4.4 Alternate Timer Registers
The alternate timer registers (ATRH and ATRL), shown in Figure 8-5,
contain the current high and low bytes of the 16-bit counter. Reading
ATRH before reading ATRL causes ATRL to be latched until ATRL is
read. Reading ATRL has no effect on the timer overflow flag (TOF).
Writing to the alternate timer registers has no effect.
NOTE:
To prevent interrupts from occurring between readings of ATRH and
ATRL, set the interrupt flag in the condition code register before reading
ATRH, and clear the flag after reading ATRL.
Address:
ATRH — $001A
Bit 7
6
54
32
1
Bit 0
Read:
ACRH7
ACRH6
ACRH5
ACRH4
ACRH3
ACRH2
ACRH1
ACRH0
Write:
Reset:
11
Address:
ATRL — $001B
Bit 7
6
54
32
1
Bit 0
Write:
Reset:
11
00
= Unimplemented
Figure 8-5. Alternate Timer Registers (ATRH and ATRL)
相關(guān)PDF資料
PDF描述
MC68HC705P6AMDWER2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P6ASD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
MC68HC705P6AMDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P6ASD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
MC68HC705P6ACSD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
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