參數(shù)資料
型號(hào): MC68HC05P18ADWE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 106/130頁
文件大?。?/td> 1310K
代理商: MC68HC05P18ADWE
MC68HC05P18A
Technical Data
Serial Input/Output Ports (SIOP)
NON-DISCLOSURE
AGREEMENT
REQUIRED
Technical Data — MC68HC05P18A
Section 9. Serial Input/Output Ports (SIOP)
9.1 Contents
9.2 Introduction
The simple synchronous serial input/output (I/O) port (SIOP) subsystem
is designed to provide efficient serial communications between
peripheral devices or other MCUs. The SIOP is implemented as a 3-wire
master/slave system with:
Serial clock (SCK)
Serial data input (SDI)
Serial data output (SDO)
A block diagram of the SIOP is shown in Figure 9-1.
The SIOP subsystem shares its input/output pins with port B. When the
SIOP is enabled, SPE bit set in the SIOP control register (SCR), port B
data direction register (DDR), and data register are modified by the
SIOP. Although port B DDR and data registers can be altered by
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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