参数资料
型号: MC68HC11ED0CFN2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 73/108页
文件大小: 1672K
代理商: MC68HC11ED0CFN2
Parallel Input/Output (I/O) Ports
Pulse Accumulator Control Register
MC68HC11ED0 — Rev. 1.0
Technical Summary
Parallel Input/Output (I/O) Ports
6.4 Pulse Accumulator Control Register
Refer to Figure 6-2 for a description of the pulse accumulator control
register (PACTL).
DDRA7 — Data Direction for Port A Bit 7
0 = Input
1 = Output
PAEN — Pulse Accumulator System Enable Bit
PAMOD — Pulse Accumulator Mode Bit
PEDGE — Pulse Accumulator Edge Control Bit
DDRA3 — Data Direction for Port A Bit 3
This bit is overridden if an output compare function is configured to
control the PA3 pin.
0 = Input
1 = Output
I4/O5 — Input Capture 4/Output Compare 5 Bit
RTR[1:0] — Real-Time Interrupt (RTI) Rate Select Bits
Address:
$0026
Bit 7
6
54321
Bit 0
Read:
DDRA7
PAEN
PAMOD
PEDGE
DDRA3
I4/O5
RTR1
RTR0
Write:
Reset:
00
000000
Figure 6-2. Pulse Accumulator Control Register (PACTL)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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