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参数资料
| 型号： | MSM6636GS-K |
| 厂商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 1 CHANNEL(S), 41.6K bps, LOCAL AREA NETWORK CONTROLLER, PDSO24 |
| 封装： | 0.430 INCH, 1.27 MM PITCH, PLASTIC, SOP-24 |
| 文件页数： | 15/73页 |
| 文件大小： | 646K |
| 代理商： | MSM6636GS-K |
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MSM6636/6636B User’s Manual
Internal Register Details
3 – 6
[INTERRUPT CAUSE DETAILS]
LEN
Exceeded 12 bytes maximum, frame length of receive message.
ABN
LAN bus was in dominant status for more than specified time (48 sec at 41.6 kbps).
D-P
BI(+) and BI(–) both received a signal indicating passive status even though a signal indicating
dominant status was output from BO(+) and BO(–) to both lines of BUS(+) and BUS(–). (Local
bus drive abnormality or LAN bus abnormality detected.)
If one line is normal, the communication is made by the normal line and the interrupt in D-P flag
does not occur.
OVER
Received next message before host CPU completed receive message processing.
(Overrun error)
CRC
Error was detected during CRC check.
FORM
Received abnormal format message:
(1) Received “SOF” during message receive.
(2) Detected “EOD” or “EOF” at location other than byte boundary.
INV
Received signal in undefined bit format.
IFS
Another node started transmission during IFS. Even when IFS flag is set, if the receive frame is
normal, receive operation is executed.
BUSY
Lost in contention for all specified number of retransmissions.
NOACK
Received no response for all specified number of retransmissions.
NRSP
Type 3 IFR request message was received, but return data was not in response register (not in
transmission standby status).
BRK
Received break signal.
RSP
Received response normally.
RCV
Received message normally.
TR
Message transmission ended normally.
If a response is not sent normally even though a response request was sent, the interrupt in TR
flag does not occur.
PAR*
Receive data parity error was detected during UART communication with CPU.
WAKR
MSM6636:
Wake-up occurred during sleep due to change of RXD terminal state.
MSM6636B: Wake-up occurred during sleep due to change of
CS terminal state.
WAKD
Wake-up occurred during sleep due to change of LAN bus status from passive to dominant.
BPG
Short-circuiting to GND detected at LAN bus(+) side.**
BPV
Short-circuiting to V
DD detected at LAN bus(+) side.**
BNG
Short-circuiting to GND detected at LAN bus(–) side.**
BNV
Short-circuiting to V
DD detected at LAN bus(–) side.**
*
Only applies to the MSM6636.
** For details, see Section 5.10, “Fault Tolerant Functions.”
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