Renesas H8/38024 Hardware Manual page 98

[A: Prior to executing BSET]
MOV. B #80,
MOV. B R0L,
MOV. B R0L,
P3
7
Input/output Input
Pin state Low level High level Low level Low level Low level Low level Low level Low level
PCR3 0
PDR3 1
RAM0 1
[B: BSET instruction executed]
BSET #0 ,
[C: After executing BSET]
MOV. B @RAM0, R0L
MOV. B R0L,
P3
7
Input/output Input
Pin state Low level High level Low level Low level Low level Low level Low level High level
PCR3 0
PDR3 1
RAM0 1
Rev. 6.00, 08/04, page 68 of 628
The PDR3 value (H'80) is written to a work area in memory
R0L
(RAM0) as well as to PDR3
@RAM0
@PDR3
P3 P3
6 5
Input Output
0 1
0 0
0 0
The BSET instruction is executed designating the PDR3
@RAM0
work area (RAM0).
The work area (RAM0) value is written to PDR3.
@PDR3
P3 P3
6 5
Input Output
0 1
0 0
0 0
P3 P3
4 3
Output Output
1 1
0 0
0 0
P3 P3
4 3
Output Output
1 1
0 0
0 0
P3 P3
2 1
Output Output
1 1
0 0
0 0
P3 P3
2 1
Output Output
1 1
0 0
0 0
P3
0
Output
1
0
0
P3
0
Output
1
1
1