參數(shù)資料
型號: MC68HC05BD3
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數(shù): 56/112頁
文件大?。?/td> 676K
代理商: MC68HC05BD3
MOTOROLA
7-10
MC68HC05BD3
M-BUS SERIAL INTERFACE
7
Figure 7-4
Flowchart of M-Bus Interrupt Routine
Clear MIF
Master Mode
TX/RX
Arbitration
Lost
Last byte
transmitted
Last byte to
be read
MAAS=1
Clear MAL
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
N
Y
Y
N
N
Y
Y
TX
RX
N
Y
Y
N
Y
N
Y
N
TPG
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