HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 145

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

5.2.2
The IPR registers are eleven 8-bit readable/writable registers that set priorities (levels 7 to 0) for
interrupts other than NMI.
The correspondence between IPR settings and interrupt sources is shown in table 5.3.
The IPR registers set a priority (levels 7 to 0) for each interrupt source other than NMI.
The IPR registers are initialized to H'77 by a reset and in hardware standby mode.
Bits 7 and 3—Reserved: Read-only bits, always read as 0.
Table 5.3
Register
IPRA
IPRB
IPRC
IPRD
IPRE
IPRF
IPRG
IPRH
IPRI
IPRJ
IPRK
Notes: 1. Reserved bits.
Bit
Initial value :
R/W
2. The refresh timer and DMAC are not supported in the H8S/2321.
Interrupt Priority Registers A to K (IPRA to IPRK)
Correspondence between Interrupt Sources and IPR Settings
:
:
—
—
7
0
IPR6
R/W
6 to 4
IRQ0
IRQ2
IRQ3
IRQ6
IRQ7
Watchdog timer
— *
TPU channel 0
TPU channel 2
TPU channel 4
8-bit timer channel 0
DMAC *
SCI channel 1
6
1
1
2
IPR5
R/W
5
1
IPR4
R/W
4
1
Rev.6.00 Sep. 27, 2007 Page 115 of 1268
—
—
3
0
Bits
2 to 0
IRQ1
IRQ4
IRQ5
DTC
Refresh timer
A/D converter
TPU channel 1
TPU channel 3
TPU channel 5
8-bit timer channel 1
SCI channel 0
SCI channel 2
Section 5 Interrupt Controller
IPR2
R/W
2
1
REJ09B0220-0600
IPR1
R/W
1
1
IPR0
R/W
0
1