CHAPTER 17 INTERRUPT FUNCTIONS
User’s Manual U16899EJ2V0UD
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(3) Priority specification flag registers (PR0L, PR0H, PR1L, PR1H)
The priority specification flag registers are used to set the corresponding maskable interrupt priority order.
PR0L, PR0H, PR1L, and PR1H are set by a 1-bit or 8-bit memory manipulation instruction. If PR0L and PR0H,
and PR1L and PR1H are combined to form 16-bit registers PR0 and PR1, they are set with a 16-bit memory
manipulation instruction.
RESET input sets these registers to FFH.
Figure 17-4. Format of Priority Specification Flag Registers (PR0L, PR0H, PR1L, PR1H)
Address: FFE8H After reset: FFH R/W
Symbol <7> <6> <5> <4> <3> <2> <1> <0>
PR0L
SREPR6
PPR5 PPR4 PPR3 PPR2 PPR1 PPR0 LVIPR
Address: FFE9H After reset: FFH R/W
Symbol <7> <6> <5> <4> <3> <2> <1> <0>
PR0H TMPR010
TMPR000
TMPR50
TMPRH0
TMPRH1
DUALPR0
STPR6
SRPR6
Address: FFEAH After reset: FFH R/W
Symbol <7> <6> <5> <4> <3> <2> <1> <0>
PR1L PPR7
PPR6
WTPR
KRPR
TMPR51
WTIPR
SRPR0
ADPR
Address: FFEBH After reset: FFH R/W
Symbol 7 6 5 4
<3>
<2>
<1>
<0>
PR1H 1 1 1 1
TMPR011
Note
TMPR001
Note
CSIPR11
Note
DMUPR
XXPRX
Priority
level
selection
0
High priority level
1
Low priority level
Note
µ
PD78F0133H, 78F0134H, 78F0136H, 78F0138H, and 78F0138HD only. Be sure to set this bit to 1 for
the
µ
PD78F0132H.
Caution Be sure to set bits 4 to 7 of PR1H to 1.