M68HC11KA 查看數據表（PDF） - Motorola => Freescale

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M68HC11KA

8-Bit Microcontroller

Motorola => Freescale 

PACTL —Pulse Accumulator Control

$0026

Bit 7

6

5

4

3

—

PAEN PAMOD PEDGE

—

RESET:

0

0

0

0

0

2

I4/O5

0

1

RTR1

0

Bit 0

RTR0

0

Bit 7 — Not implemented

Always reads zero

PAEN — Pulse Accumulator System Enable

0 = Pulse accumulator disabled

1 = Pulse accumulator enabled

PAMOD — Pulse Accumulator Mode

0 = Event counter

1 = Gated time accumulation

PEDGE — Pulse Accumulator Edge Control

0 = In event mode, falling edges increment counter. In gated accumulation mode, high level enables

accumulator and falling edge sets PAIF.

1 = In event mode, rising edges increment counter. In gated accumulation mode, low level enables

accumulator and rising edge sets PAIF.

Bit 3 — Not implemented

Always reads zero

I4/O5 — Input Capture 4/Output Compare 5

Refer to 10 Main Timer.

RTR[1:0] — Real-Time Interrupt Rate

Refer to 10 Main Timer.

PACNT —Pulse Accumulator Counter

$0027

Bit 7

6

5

4

3

2

1

Bit 0

Bit 7

6

5

4

3

2

1

Bit 0

Can be read and written.

MC68HC11KA4

MC68HC11KA4TS/D

MOTOROLA

61

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