參數(shù)資料
型號: m789436
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-Bit Single-Chip Microcontrollers
中文描述: 8位單芯片微控制器
文件頁數(shù): 106/144頁
文件大小: 1378K
代理商: M789436
CHAPTER 3 CPU ARCHITECTURE
64
User’s Manual U15075EJ1V0UM00
3.2.2 General-purpose registers
The general-purpose registers consist of eight 8-bit registers (X, A, C, B, E, D, L, and H).
Each register can be used as an 8-bit register, or two 8-bit registers in pairs can be used as a 16-bit register (AX,
BC, DE, and HL).
General-purpose registers can be described in terms of function names (X, A, C, B, E, D, L, H, AX, BC, DE, or
HL) or absolute names (R0 to R7 and RP0 to RP3).
Figure 3-18. General-Purpose Register Configuration
(a) Absolute names
R0
15
0
7
0
16-bit processing
8-bit processing
RP3
RP2
RP1
RP0
R1
R2
R3
R4
R5
R6
R7
(b) Function names
X
15
0
7
0
16-bit processing
8-bit processing
HL
DE
BC
AX
A
C
B
E
D
L
H
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