RL78/G15 CHAPTER 14 INTERRUPT FUNCTIONS
R01UH0959EJ0110 Rev.1.10 Page 610 of 765
Mar 7, 2023
14.3.3 Priority specification flag registers (PR00L, PR00H, PR01L, PR01H, PR10L,
PR10H, PR11L, PR11H)
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).
The PR00L, PR00H, PR01L, PR01H, PR10L, PR10H, PR11L, and PR11H registers can be set by a 1-bit or 8-bit
memory manipulation instruction. If the PR00L and PR00H registers, the PR01L and PR01H registers, the PR10L and
PR10H registers, and the PR11L and PR11H registers are combined to form 16-bit registers PR00, PR01, PR10, and
PR11, 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 14-4. Format of Priority Specification Flag Registers
(PR00L, PR00H, PR01L, PR01H, PR10L, PR10H, PR11L, PR11H)
Address: FFFE8H After reset: FFH R/W
Symbol
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7
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6
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5
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4
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3
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2
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1
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0
PR00L STPR00
CSIPR000
IICPR000
PPR05 PPR04 PPR03 PPR02 PPR01 PPR00 WDTIPR0
Address: FFFECH After reset: FFH R/W
Symbol
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7
□
6
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5
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4
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3
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2
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1
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0
PR10L STPR10
CSIPR100
IICPR100
PPR15 PPR14 PPR13 PPR12 PPR11 PPR10 WDTIPR1
Address: FFFE9H After reset: FFH R/W
Symbol
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7
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6
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5
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4
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3
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2
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1
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0
PR00H PPR07 PPR06 ADPR0 TMPR001 TMPR000 TMPR001H SREPR00 SRPR00
CSIPR001
IICPR001
Address: FFFEDH After reset: FFH R/W
Symbol
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7
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6
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5
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4
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3
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2
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1
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0
PR10H PPR17 PPR16 ADPR1 TMPR101 TMPR100 TMPR101H SREPR10 SRPR10
CSIPR101
IICPR101
Address: FFFEAH After reset: FFH R/W
Symbol
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7
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6
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5
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4
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3
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2
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1
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0
PR01L TMPR006 TMPR005 TMPR004 ITPR0 TMPR003 TMPR002 IICAPR00 TMPR003H