Electronics America 8-Bit Single-Chip Microcontrollers User's Manual
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CHAPTER 21 INTERRUPT AND TEST FUNCTIONS
<7>
PPR6
Symbol
PR0L
<6>
PPR5
<5>
PPR4
<4>
PPR3
<3>
PPR2
<2>
PPR1
<1>
PPR0
<0>
TMPR4
Address
FFE8H FFH
After
Reset
R/W
R/W
0
1
Priority Level Selection
High priority level
Low priority level
<7>
TMPR01
PR0H
<6>
TMPR00
<5>
TMPR3
<4>
STPR
<3>
SRPR
<2>
SERPR
<1>
CSIPR1
<0>
CSIPR0
7
1PR1L
6
1
5
1
4
1
3
1
<2>
ADPR
<1>
TMPR2
<0>
TMPR1
FFE9H FFH R/W
FFEAH FFH R/W
× ×
PR
×
Cautions 1. If a watchdog timer is used in watchdog timer mode 1, set TMPR4 flag to 1.
2. Set always 1 in PR1L bits 3 through 7.
(3) Priority specify flag registers (PR0L, PR0H, and PR1L)
The priority specify flag is used to set the corresponding maskable interrupt priority orders.
PR0L, PR0H, and PR1L are set with a 1-bit or 8-bit memory manipulation instruction. If PR0L and PR0H are
used as a 16-bit register PR0, use a 16-bit memory manipulation instruction for the setting.
RESET input sets these registers to FFH.
Figure 21-4. Priority Specify Flag Register Format