参数资料
型号: R5F21236DFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 31/38页
文件大小: 473K
代理商: R5F21236DFP
Section 2 CPU
Rev. 2.00 Aug. 28, 2007 Page 25 of 1106
REJ09B0230-0200
Table 2.5
Access to Immediate Data
Type
This LSI's CPU
Example of Other CPU
8-bit immediate
MOV
#H'12,R0
MOV.B
#H'12,R0
16-bit immediate
MOV.W
@(disp,PC),R0
........
.DATA.W H'1234
MOV.W
#H'1234,R0
32-bit immediate
MOV.L
@(disp,PC),R0
........
.DATA.L H'12345678
MOV.L
#H'12345678,R0
Note:
*
Immediate data is accessed by @(disp,PC).
Absolute Addresses: When data is accessed by absolute address, place the absolute address value
in a table in memory beforehand. The absolute address value is transferred to a register using the
method whereby immediate data is loaded when an instruction is executed, and the data is
accessed using the register indirect addressing mode.
Table 2.6
Access to Absolute Address
Type
CPU in this LSI
Example of Other CPUs
Absolute address
MOV.L
@(disp,PC),R1
MOV.B
@R1,R0
........
.DATA.L H'12345678
MOV.B @H'12345678,R0
Note:
*
Immediate data is referenced by @(disp,PC).
16-Bit/32-Bit Displacement: When data is accessed using the 16- or 32-bit displacement
addressing mode, the displacement value is placed in a table in memory beforehand. Using the
method whereby immediate data is loaded when an instruction is executed, this value is
transferred to a register and the data is accessed using index register indirect addressing mode.
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