參數(shù)資料
型號(hào): MC68HC05P4ADW
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): 28/72頁
文件大?。?/td> 400K
代理商: MC68HC05P4ADW
Simple Serial Input/Output Port (SIOP)
MC68HC05P4A Data Sheet, Rev. 7.1
34
Freescale Semiconductor
7.3.3 SIOP Data Register
This register is located at address $000C and is both the transmit and receive data register. This system
is not double buffered and any write to this register will destroy the previous contents. The SDR can be
read at any time, but if a transmission is in progress the results may be ambiguous. Writes to the SDR
while a transmission is in progress can cause invalid data to be transmitted and/or received. This register
can be read and written only when the SIOP is enabled (SPE = 1).
Address:
$000C
Bit 7
654321
Bit 0
Read:
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Write:
Reset:
Unaffected by reset
Figure 7-5. SIOP Data Register (SDR)
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MC68HC05P4DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
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