參數(shù)資料
型號: MSM9225BGA-2K
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 54/95頁
文件大?。?/td> 567K
代理商: MSM9225BGA-2K
MSM9225B User’s Manual
Chapter 3 Operational Description
3 – 3
3.1.3 Receive Procedure
Figure 3-3 shows the receive procedure.
Receive procedure
YES
(MSM9225B)
Interrupt signal is generated when
reception is complete
INT pin H to L
Reset IRF bit of CANI register
(0Fhex) to 0
Verify received message box
number with TMN register (9Ehex)
Reset RCS bit of message
control register (x0hex) to 0
Read receive data from
message box
Message
control register’s
RCS = 0?
CANC register’s (0Ehex)
CANA = 0?
Receive complete
YES
NO
YES
CANI
register’s (0Fhex)
IRF = 1?
NO
Check whether new receive data has
been written to the same message box
while data was being read.
NO
Check whether receive data has been written
to another message box while data was being read.
This step may be omitted and evaluation performed
based on the interrupt signal.
Verify that the interrupt has been caused
by the reception completion.
Processing of other interrupt causes
Figure 3-3 Receive Flowchart
INTpin
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