參數(shù)資料
型號: MC68HC05BS8FB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.2 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 97/128頁
文件大?。?/td> 752K
代理商: MC68HC05BS8FB
MOTOROLA
8-10
MC68HC05BS8
M-BUS SERIAL INTERFACE
8
Figure 8-4 Flowchart of M-Bus Interrupt Routine
Clear MIF
Master Mode?
TX/RX?
Arbitration
Last byte
transmitted?
Last byte to
be read?
MAAS=1?
Clear MAL
Lost?
MAAS=1?
SRW=1?
Set TX mode
Write to MDR
RTI
Set RX mode
Dummy read MDR
TX/RX?
Generate
STOP
signal
ACK from
receiver?
Last 2nd
byte to read?
RXAK=0?
Write to MDR
Generate
STOP
signal
TXAK=1
Write to MDR
Read from MDR
N
Y
RX
TX
N
Y
N
Y
N
Y
TX
RX
N
Y
N
Y
N
Y
N
TPG
68
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