HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 103

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Interrupt Priority Register B (IPRB): IPRB is an 8-bit readable/writable register in which
interrupt priority levels can be set.
IPRB is initialized to H'00 by a reset and in hardware standby mode.
Bit
Initial value
Read/Write
IPRB7
Priority level B7
Selects the priority level of ITU channel 3 interrupt requests
R/W
7
0
IPRB6
Priority level B6
Selects the priority level of ITU channel 4 interrupt requests
R/W
6
0
IPRB5
Priority level B5
Selects the priority level of DMAC
interrupt requests (channels 0 and 1)
R/W
5
0
89
Reserved bit
R/W
—
4
0
IPRB3
Priority level B3
Selects the priority level of SCI
channel 0 interrupt requests
R/W
3
0
Priority level B2
Selects the priority level of
SCI channel 1 interrupt requests
IPRB2
R/W
2
0
Priority level B1
Selects the priority level
of A/D converter
interrupt request
IPRB1
R/W
1
0
Reserved bit
R/W
—
0
0