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): 53/95頁
文件大?。?/td> 567K
代理商: MSM9225BGA-2K
MSM9225B User’s Manual
Chapter 3 Operational Description
3 – 2
3.1.2 Transmit Procedure
Figure 3-2 shows the transmit procedure.
Start transmit setting
Set MMA bit of the message
control register (x0hex) to 1
Read MMA bit
MMA = 1?
Set message control
register’s MMA = 0 and TRQ = 1
Set TIRS bit of CANC register
(0Ehex) to 1
YES
NO
Since the MMA bit cannot be set to 1 while
message boxes are being accessed from
the CAN side, read and verify its value.
Transmit setting complete
Transmission operation
Write message data to
message box
All transmit
message box settings
complete?
YES
NO
Reset TIRS bit of CANC register
(0Ehex) to 0
Read MMA bit
MMA = 0?
YES
NO
Since the MMA bit cannot be
reset to 0 while
message boxes are being accessed from
the CAN side, read and verify its value.
Figure 3-2 Transmit Flowchart
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