参数资料
型号: MC68HC11ED0VP2
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, PDIP40
封装: PLASTIC, DIP-40
文件页数: 71/108页
文件大小: 1672K
代理商: MC68HC11ED0VP2
MC68HC11ED0 — Rev. 1.0
Technical Summary
Parallel Input/Output (I/O) Ports
Technical Data — MC68HC11ED0
Section 6. Parallel Input/Output (I/O) Ports
6.1 Contents
6.2 Introduction
The MC68HC11ED0 has up to 14 input/output (I/O) lines. The
address/data bus of this microcontroller (MCU) is multiplexed and has
no I/O ports associated with it. Table 6-1 provides a summary of the
configuration and features of each port.
NOTE:
Do not confuse pin function with the electrical state of the pin at reset. All
general-purpose I/O pins configured as inputs at reset are in a
high-impedance state and the contents of port data registers is
undefined. In port descriptions, a U indicates this condition. The pin
function is mode dependent.
Table 6-1. Input/Output Ports
Port
Input
Pins
Output
Pins
Bidirectional
Pins
Shared Functions
Port A
3
2
Timer
Port D
——
6
Serial communications interface
(SCI) and serial peripheral interface
(SPI)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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