參數(shù)資料
型號(hào)： MSM9225
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： CAN (Controller Area Network) Controller
中文描述： CAN（控制器局域網(wǎng)）控制器
文件頁(yè)數(shù)： 67/74頁(yè)
文件大?。?/td> 488K
代理商： MSM9225
Semiconductor
MSM9225
7/73
Message Memory
The message memory stores messages to be transmitted/received.
For transmission, only messages stored in the message memory can be transmitted. A message
with the highest priority among messages requested for transmission is sent.
For receiving, only messages that have an identifier stored in the message memory can be
received. When a message is received normally, and its identifier matches with the identifier
stored in the message memory, data of the received message is written to the message area of
the corresponding message in the message memory.
The message memory can store a maximum of 16 messages. Set messages at the NMES register.
1. Inside message control register (X0hex)
This register performs various controls for a message.
Set this register for each message.
The bit configuration is as follows:
76543210
Address MSB
0h
LSB
ARES : Automatic transmission
FRM : Message format setting
EIT : Transmission completion interrupt enable
EIR : Receive completion interrupt enable
RCS : Receive status
TRQ : Transmission request
Not used
MMA : Message memory access enable
(1) Message memory access request/enable bit: MMA
This bit prevents contention between the microcontroller and CAN when accessing the
message memory.
When the microcontroller accesses the message memory, "1" is written to the MMA bit
regularly. The microcontroller confirms that the MMA bit is "1", and then accesses the
message memory. Write "0" to the MMA bit when the microcontroller accessing ends.
Operations by the MMA bit are shown in the following table.
At reset, the MMA bit is set to "0".
MMA
0
1
Accesses from microcontroller
to message memory are disabled
Accesses from microcontroller
to message memory are enabled
Operate
Reading of received data
Reception
Stop
Rewriting of control area
Operate
Transmission
Stop
Rewriting of control area
Rewriting of transmission data
Microcontroller
相關(guān)PDF資料
PDF描述
MSMP3V-E3/89A 100 W, UNIDIRECTIONAL, SILICON, TVS DIODE
MSO2TM-1.5MHZ CRYSTAL OSCILLATOR, CLOCK, 1.5 MHz, TTL OUTPUT
MSO2C-40MHZ CRYSTAL OSCILLATOR, CLOCK, 40 MHz, CMOS OUTPUT
MSO2C-FREQ CRYSTAL OSCILLATOR, CLOCK, 1.5 MHz - 40 MHz, CMOS OUTPUT
MSO2T-40MHZ CRYSTAL OSCILLATOR, CLOCK, 40 MHz, TTL OUTPUT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM9225B 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:CAN (Controller Area Network) Controller
MSM9225BGA 制造商:ROHM Semiconductor 功能描述:
MSM9225BGA-2K 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:CAN (Controller Area Network) Controller
MSM9225BGAZ020 制造商:ROHM Semiconductor 功能描述:
MSM9225BGAZ0VL 制造商:ROHM Semiconductor 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*