Datasheet

Section 2 CPU
R01UH0309EJ0500 Rev. 5.00 Page 79 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table 2.13 Effective Address Calculation (2)
No
5
op
31
23
31
0
Don't care
abs
@aa:8
7
H'FFFF
op
31
23
31
0
Don't care
@aa:16
op
@aa:24
@aa:32
abs
15
16
31 2331
0
Don't care
31
23
31
0
Don't care
abs
op
abs
6
op IMM
#xx:8/#xx:16/#xx:32
824
24
24
24
Addressing Mode and Instruction Format
Absolute address
Immediate
Effective Address Calculation Effective Address (EA)
Sign extension
Operand is immediate data.
31 23
7
Program-counter relative
@(d:8,PC)/@(d:16,PC)
Memory indirect @@aa:8
• Normal mode
*
• Advanced mode
31
0
Don't care
23
0
disp
0
31 2331
0
Don't care
disp op
23
op
8
abs
31
0
abs
H'000000
78
0 15
31
2331
0
Don't care
15
H'00
16
op abs
31
0
abs
H'000000
78
0 31
24
24
24
Note: * Normal mode is not available in this LSI.
PC contents
Sign
extension
Memory contents
Memory contents