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5962-03A0601VXC 参数 Datasheet PDF下载

5962-03A0601VXC图片预览
型号: 5962-03A0601VXC
PDF下载: 下载PDF文件 查看货源
内容描述: CAN控制器的应用空间 [CAN Controller for Space Application]
分类和应用: 控制器
文件页数/大小: 50 页 / 509 K
品牌: ATMEL [ ATMEL ]
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AT7908E  
Operations 5 and 6  
Table 39. write reg 03 H, data =0AHex  
(SETUP_3 register) Resynchronisation jump length = 2 system clock and transmission request.  
SETUP_3  
SETUP_3  
RxClr  
0
Reset  
0
IntClr  
0
AbortTx  
0
Txreq  
0
RSJ2  
0
RSJ1  
1
RSJ0  
0
RxClr  
0
Reset  
0
IntClr  
0
AbortTx  
0
Txreq  
0
RSJ2  
0
RSJ1  
1
RSJ0  
0
After this setting, the AT7908E waits for a remote frame request and the STATUS regis-  
ter will be not updated.  
If the request arrives, the AT7908E will send an acknowledge and then starts to transmit  
the data frame in reply to the remote frame request. The STATUS register, during the  
answer, will be automatically updated (TX_active bit become 1).  
STATUS  
STATUS  
SyncTx  
0
SyncRx  
0
Rxbuf1  
0
Rxbuf0  
0
TxOK  
0
TxActive  
0
ErrPass  
0
BusOff  
0
SyncTx  
0
SyncRx  
0
Rxbuf1  
0
Rxbuf0  
0
TxOK  
0
TxActive  
1
ErrPass  
0
BusOff  
0
At the end of the transmission, the AT7908E will send the INT to the MCU that can read  
out the STATUS register to check that all is OK.  
Setting to send remote frame request  
In this paragraph will be described the procedure to send a remote frame request.  
After the Device configuration, the MCU must initialize the transmit buffer to send the  
remote frame request and the receiver buffers to receive the remote frame answer.  
The configuration of all the setup registers after RESET signal.  
Operation 1  
Table 40. write reg 00 H, data =02Hex  
(SETUP_0 register) system clock = external clock, enable receiving completed interrupt  
Gensync  
Tx  
Gensync  
Rx  
SETUP_0  
BPR1  
0
BPR0  
0
Errint  
0
Overint  
0
Rxint  
0
Txint  
0
0
0
42  
4268D–AERO–11/09  
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