HD64F2638F20J Datasheet, PDF (1219/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Appendix B Internal I/O Register
IRR0—Interrupt Register
IRR1—Interrupt Register
H'F812
H'FA12
Note: * This register is not available in the H8S/2635 Group.
Bit
15
14
13
12
11
IRR7 IRR6 IRR5 IRR4 IRR3
Initial value
0
0
0
0
0
Read/Write R/W
R/W
R/W
R/W
R/W
10
IRR2
0
R
9
IRR1
0
R
HCAN0
HCAN1^*
8
IRR0
1
R/W
Reset Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Hardware reset (HCAN module stop*, software standby)
[Setting condition]
• When reset processing is completed after a hardware reset
(HCAN module stop*, software standby)
Note: * After reset or hardware standby release, the module stop bit is
initialized to 1, and so the HCAN enters the module stop state.
Receive Message Interrupt Flag
0 [Clearing condition]
• Clearing of all bits in RXPR (receive complete register) of mailbox
for which receive interrupt requests are enabled by MBIMR
1 Data frame or remote frame received and stored in mailbox
[Setting condition]
• When data frame or remote frame reception is completed, when
corresponding MBIMR = 0
Remote Frame Request Interrupt Flag
0 [Clearing condition]
• Clearing of all bits in RFPR (remote request register) of mailbox for which
receive interrupt requests are enabled by MBIMR
1 Remote frame received and stored in mailbox
[Setting condition]
• When remote frame reception is completed, when corresponding MBIMR = 0
Transmit Overload Warning Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Error warning state caused by transmit error
[Setting condition]
• When TEC ≥ 96
Receive Overload Warning Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Error warning state caused by receive error
[Setting condition]
• When REC ≥ 96
Error Passive Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Error passive state caused by transmit/receive error
[Setting condition]
• When TEC ≥ 128 or REC ≥ 128
Bus Off Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Bus off state caused by transmit error
[Setting condition]
• When TEC ≥ 256
Overload Frame Interrupt Flag
0 [Clearing condition]
• Writing 1
1 Overload frame transmission
[Setting condition]
• Overload frame is transmitted
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 1169 of 1458