CHAPTER 14 INTERRUPT FUNCTIONS
Preliminary User’s Manual U16846EJ1V0UD
283
(3) Priority specification flag registers (PR0L, PR0H, PR1L)
The priority specification flag registers are used to set the corresponding maskable interrupt priority order.
PR0L, PR0H, and PR1L are set by a 1-bit or 8-bit memory manipulation instruction. If PR0L and PR0H are
combined to form 16-bit register PR0, they are set with a 16-bit memory manipulation instruction.
RESET input sets these registers to FFH.
Figure 14-4. Format of Priority Specification Flag Register (PR0L, PR0H, PR1L)
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
Note 1
STPR6
SRPR6
Address: FFEAH After reset: FFH R/W
Symbol 7 6 5 4 3 2
<1>
<0>
PR1L 1 1 1 1 1 1
SRPR0
Note 2
ADPR
XXPRX
Priority
level
selection
0
High priority level
1
Low priority level
Notes 1. This is CSIPRI0 in the
µ
PD78F0101H.
2.
µ
PD78F0102H and 78F0103H only.
Caution Be sure to set bits 2 to 7 of PR1L to 1.