参数资料
型号: S3P9664-AM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDIP24
封装: 0.300 INCH, SDIP-24
文件页数: 64/148页
文件大小: 784K
代理商: S3P9664-AM
S3C9664/P9664 (Preliminary Spec)
ADDRESSING MODES
3-9
INDEXED ADDRESSING MODE (Concluded)
Point to Working
Register Pair
(1 of 8)
LSB Selects
16-Bit
address
added to
offset
Program Memory
4-Bit Working
Register Address
Sample Instructions:
LDC
R4, #1000H[RR2]
; The values in the program address (RR2 + #1000H)
are loaded into register R4.
LDE
R4, #1000H[RR2]
; Identical operation to LDC example, except that
external program memory is accessed.
NEXT 3 Bits
Register
Pair
8-Bits
16-Bits
+
Program Memory
or
Datamemory
OPERAND
Value used in
Instruction
16-Bits
Register File
OPCODE
XLH (OFFSET)
XLL (OFFSET)
dst
src
Figure 3-9. Indexed Addressing to Program or Data Memory with Long Offset
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