3069RF-ZTAT Datasheet, PDF (113/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Interrupt Priority Register B (IPRB): IPRB is an 8-bit readable/writable register in which
interrupt priority levels can be set.
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
IPRB7 IPRB6 IPRB5 — IPRB3 IPRB2 IPRB1 —
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W R/W
Reserved bit
Priority level B1
Selects the priority level
of SCI channel 2 interrupt
requests
Priority level B2
Selects the priority level of
SCI channel 1 interrupt requests
Priority level B3
Selects the priority level of SCI
channel 0 interrupt requests
Reserved bit
Priority level B5
Selects the priority level of DMAC
interrupt requests (channels 0 and 1)
Priority level B6
Selects the priority level of 8-bit timer channel 2, 3 interrupt requests
Priority level B7
Selects the priority level of 8-bit timer channel 0, 1 interrupt requests
IPRB is initialized to H'00 by a reset and in hardware standby mode.
Rev. 5.0, 09/04, page 91 of 978