C68HC11KA4BCFU4 查看數據表（PDF） - Motorola => Freescale

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C68HC11KA4BCFU4

8-Bit Microcontroller

Motorola => Freescale 

6 Parallel Input/Output

The MC68HC11KA4/KA2 has up to 51 input/output lines, depending on the operating mode. To en-

hance the I/O functions, the data bus of this microcontroller is non-multiplexed. The following table is a

summary of the configuration and features of each port.

Port

Port A

Port B

Port C

Port D

Port E

Port F

Port G

Port H

Input Pins

—

—

—

—

8*

—

—

—

Output Pins

—

—

—

—

—

—

—

—

Bidirectional Pins

8

8

8

6

—

8

1

4

Shared Functions

Timer

High Order Address

Data Bus

SCI and SPI

A/D Converter

Low Order Address

R/W Signal

PWMs

* Only four pins on 64-pin version.

CONFIG — COP, ROM Mapping, EEPROM Enables

Bit 7

6

ROMAD

—

RESET:

—

1

5

CLKX

—

4

PAREN

—

3

NOSEC

—

2

NOCOP

—

1

ROMON

—

ROMAD — ROM Mapping Control

Refer to 2 Operating Modes and On-Chip Memory.

$003F

Bit 0

EEON

—

Bit 6 — Not implemented

Always reads one

CLKX — XOUT Clock Enable

Refer to 2 Operating Modes and On-Chip Memory.

PAREN — Pull-Up Assignment Register Enable

0 = Pull-ups always disabled regardless of state of bits in PPAR

1 = Pull-ups either enabled or disabled through PPAR

NOSEC — Security Disable

Refer to 2 Operating Modes and On-Chip Memory.

NOCOP — COP System Disable

Refer to 5 Resets and Interrupts.

ROMON — ROM/EPROM Enable

Refer to 2 Operating Modes and On-Chip Memory.

EEON — EEPROM Enable

Refer to 2 Operating Modes and On-Chip Memory.

MC68HC11KA4

MC68HC11KA4TS/D

MOTOROLA

31

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