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CHAPTER 19 INTERRUPT FUNCTIONS
User’s Manual U15798EJ2V0UD
(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 by a 16-bit memory manipulation instruction.
RESET input sets the values of these registers to FFH.
Figure 19-4. Format of Priority Specification Flag Registers (PR0L, PR0H, PR1L)
Address: FFE8H After reset: FFH R/W
Symbol
7
6
5
4
3
2
1
0
PR0L
PPR6
PPR5
PPR4
PPR3
PPR2
PPR1
PPR0
WDTPR
Address: FFE9H After reset: FFH R/W
Symbol
7
6
5
4
3
2
1
0
PR0H
WTNIPR0
IICPR0
Note
CSIPR3
CSIPR1
STPR0
SRPR0
SERPR0
KRPR
Address: FFEAH After reset: FFH R/W
Symbol
7
6
5
4
3
2
1
0
PR1L
WTNPR0
ADPR0
TMPR51
TMPR50
TMPRB0
TMPRA0
TMPR01
TMPR00
XXPRX
Priority level selection
0
High priority level
1
Low priority level
Note
µ
PD780344Y, 780354Y Subseries only
Caution
When the watchdog timer is used in the watchdog timer mode 1, set the WDTPR flag to 1.
Содержание mPD780344 Series
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