HD6432621 Hitachi, HD6432621 Datasheet - Page 897
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
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IRR—Interrupt Register
Overload frame/bus off recovery interrupt flag
0
1
IRR
Bit
Initial value
Read/Write
Note: * Can only be written with 1 for flag clearing.
[Clearing condition]
Writing 1
Overload frame transmission or recovery
from bus off state
[Setting conditions]
• Error active/passive state
• Bus off state
— When overload frame is transmitted
— When 11 recessive bits are received
128 times (REC
:
:
:
Bus off interrupt flag
0
1
R/(W)*
IRR7
15
[Clearing condition]
Writing 1
Bus off state caused by
transmit error
[Setting condition]
When TEC
0
128)
R/(W)*
IRR6
14
256
0
R/(W)*
IRR5
Error passive interrupt flag
13
0
0
1
[Clearing condition]
Writing 1
Error passive state caused by transmit/receive error
[Setting condition]
When TEC
Receive overload warning interrupt flag
0
1
R/(W)*
Transmit overload warning interrupt flag
[Clearing condition]
Writing 1
Error warning state caused by receive error
[Setting condition]
When REC
IRR4
0
1
12
0
[Clearing condition]
Writing 1
Error warning state caused by transmit error
[Setting condition]
When TEC
Remote frame request interrupt flag
0
1
128 or REC
H'F812
Receive message interrupt flag
[Clearing condition]
Clearing of all bits in RFPR (remote request
wait register) of mailbox for which receive interrupt
requests are enabled MBIMR
Remote frame received and stored in mailbox
[Setting conditions]
When remote frame reception is completed
When corresponding MBIMR = 0
0
1
R/(W)*
96
IRR3
11
[Clearing condition]
Clearing of all bits in RXPR (receive complete
register) of mailbox for which receive interrupt
requests are enabled MBIMR
Data frame or remote frame
received and stored in mailbox
[Setting conditions]
When data frame or remote frame
reception is completed
When corresponding MBIMR = 0
0
Reset interrupt flag
0
1 Hardware reset (HCAN module stop,
96
software standby)
[Setting condition]
When reset processing is completed after
a hardware reset (HCAN module stop,
software standby)
[Clearing condition]
Writing 1
128
IRR2
10
R
0
IRR1
R
9
0
R/(W)*
IRR0
8
0
HCAN
853
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