參數(shù)資料
型號(hào): 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(yè)數(shù): 52/95頁(yè)
文件大?。?/td> 567K
代理商: MSM9225BGA-2K
MSM9225B User’s Manual
Chapter 3 Operational Description
3 – 1
Chapter 3
Operational Description
MSM9225B operation is described below.
3.1
Operational Procedure
Procedures to set and operate various communication protocols are indicated below.
3.1.1 Initial Setting
Figure 3-1 shows the initial setting procedure.
Start initial setting
Set INIT bit of CANC register
(0Ehex) to 1
Read INIT bit
INIT = 1?
Set the number of message boxes
with the NMES register (1Ehex)
Set the message
control register (x0hex)
Set message boxes
Set FRM, DLC3-0, IDB28-0
All message
settings complete?
Set the interrupt control with the
CANI register (0Fhex)
Initial setting complete
Reset INIT bit of the CANC register
(0Ehex) to 0
Set group message
(GMR/GMSK)
Set Tx0, Tx1, Rx0, Rx1 states
with the TIOC register (2Fhex)
Set CAN bus timing
BTR0 (1Fhex)
BTR1 (2Ehex)
YES
NO
Since the INIT bit cannot be set to "1" during
transmission or reception, read and verify its value.
Figure 3-1 Initial Setting Flowchart
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