HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 588

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Appendix B Internal I/O Registers
BRCR—Bus Release Control Register
ISCR—IRQ Sense Control Register
Rev.4.00 Aug. 20, 2007 Page 544 of 638
REJ09B0395-0400
Modes
1 and 2
Modes
3 and 4
Initial value
Read/Write
Initial value
Read/Write
Initial value
Read/Write
Bit
R/W
⎯
Bit
7
0
A23E
R/W
⎯
7
1
1
R/W
⎯
6
0
Address 23 to 20 enable
0
1
IRQ
0
1
A22E
Address output
Other input/output
IRQ5SC
R/W
5
⎯
6
1
1
R/W
to IRQ
Interrupts are requested when IRQ
Interrupts are requested by falling-edge input at IRQ
5
0
0
A21E
IRQ4SC
R/W
sense control
⎯
5
1
1
R/W
4
0
A20E
IRQ3SC
⎯
⎯
4
1
0
R/W
3
0
H'EE013
H'EE014
IRQ2SC
⎯
⎯
⎯
3
1
1
R/W
2
0
5
to IRQ
IRQ1SC
⎯
⎯
⎯
2
1
1
R/W
1
0
Bus release enable
0
0
1
are low
Interrupt Controller
IRQ0SC
The bus cannot be
released to an
external device
The bus can be
released to an
external device
⎯
⎯
⎯
R/W
1
1
1
0
0
5
Bus controller
to IRQ
BRLE
R/W
R/W
0
0
0
0