參數(shù)資料
型號(hào): MC68HRC705JP7CP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 3/164頁
文件大?。?/td> 1165K
代理商: MC68HRC705JP7CP
Simple Synchronous Serial Interface
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
100
Freescale Semiconductor
9.3.3 SIOP Data Register
The SIOP data register (SDR) is located at address $000C and serves as both the transmit and receive
data register. Writing to this register will initiate a message transmission if the node is in master mode.
The SIOP subsystem is not double buffered and any write to this register will destroy the previous
contents. The SDR can be read at any time. However, if a transfer is in progress the results may be
ambiguous. Writing to the SDR while a transfer is in progress can cause invalid data to be transmitted
and/or received. Figure 9-6 shows the position of each bit in the register. This register is not affected by
reset.
Address:
$000C
Bit 7
654321
Bit 0
Read:
Bit 7
654321
Bit 0
Write:
Reset:
Unaffected by reset
Figure 9-6. SIOP Data Register (SDR)
相關(guān)PDF資料
PDF描述
MC68HC705SP7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
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MC68HC705JJ7CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
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