HD643303x Hitachi, HD643303x Datasheet - Page 98

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

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
R/W
—
5
0
Reserved bits
83
R/W
—
4
0
IPRB3
Priority level B3
Selects the priority level of SCI
channel 0 interrupt requests
R/W
3
0
Reserved bit
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