参数资料
型号: S3P9664-SK
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, SOP-20
文件页数: 63/148页
文件大小: 784K
代理商: S3P9664-SK
ADDRESSING MODES
S3C9664/P9664 (Preliminary Spec)
3-8
INDEXED ADDRESSING MODE (Continued)
Point to Working
Register Pair
(1 of 8)
LSB Selects
16-Bit
address
added to
offset
dst
OPCODE
Program Memory
XS (OFFSET)
4-Bit Working
Register Address
Sample Instructions:
LDC
R4, #04H[RR2]
; The values in the program address (RR2 + #04H)
are loaded into register R4.
LDE
R4,#04H[RR2]
; Identical operation to LDC example, except that
external program memory is accessed.
NEXT 3 Bits
Register
Pair
src
8-Bits
16-Bits
+
Program Memory
or
Datamemory
OPERAND
Value used in
Instruction
16-Bits
Register File
Figure 3-8. Indexed Addressing to Program or Data Memory with Short Offset
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