RL78/G1P
CHAPTER 15 INTERRUPT FUNCTIONS
R01UH0895EJ0100 Rev.1.00
581
Nov 29, 2019
15.3.3 Priority specification flag registers (PR00L, PR00H, PR01L, PR10L, PR10H, PR11L)
The priority specification flag registers are used to set the corresponding maskable interrupt priority level.
A priority level is set by using the PR0xy and PR1xy registers in combination (xy = 0L, 0H, 1L, 1H, 2L, or 2H).
The PR00L, PR00H, PR01L, PR10L, PR10H, and PR11L registers can be set by a 1-bit or 8-bit memory manipulation
instruction. If the PR00L and PR00H registers, and the PR10L and PR10H registers are combined to form 16-bit registers
PR00 and PR10, they can be set by a 16-bit memory manipulation instruction.
Reset signal generation sets these registers to FFH.
Remark
If an instruction that writes data to this register is executed, the number of instruction execution clocks
increases by 2 clocks.
Figure 15-4. Format of Priority Specification Flag Registers (PR00L, PR00H, PR01L, PR10L, PR10H, PR11L)
Address: FFFE8H After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> <1> <0>
PR00L PPR05 PPR04 PPR03 PPR02 PPR01 PPR00 LVIPR0
WDTIPR0
Address: FFFECH After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> <1> <0>
PR10L PPR15 PPR14 PPR13 PPR12 PPR11 PPR10 LVIPR1
WDTIPR1
Address: FFFE9H After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> <1> <0>
PR00H
SREPR00
TMPR001H
SRPR00
STPR00
CSIPR000
DMAPR01 DMAPR00 FLPR0
IICAPR00 ADPR0
Address: FFFEDH After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> <1> <0>
PR10H SREPR10
TMPR101H
SRPR10 STPR10
CSIPR100
DMAPR11 DMAPR10 FLPR1
IICAPR10 ADPR1
Address: FFFEAH After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> 1
0
PR01L TMPR003 TMPR002 TMPR001 TMPR000 IICAPR01 TMPR003H
1
1
Address: FFFEEH After reset: FFH R/W
Symbol
<7> <6> <5> <4> <3> <2> 1
0
PR11L TMPR103 TMPR102 TMPR101 TMPR100 IICAPR11 TMPR103H
1
1
XXPR1X
XXPR0X
Priority level selection
0
0
Specify level 0 (high priority level)
0
1
Specify level 1
1
0
Specify level 2
1
1
Specify level 3 (low priority level)
Caution Be sure to set bits that are not available to the initial value.
Summary of Contents for RL78/G1P
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