參數(shù)資料
型號: AT80251G2D-SLSUM
廠商: Atmel
文件頁數(shù): 18/77頁
文件大?。?/td> 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標準包裝: 972
系列: 8x251
核心處理器: C251
芯體尺寸: 8/16-位
速度: 24MHz
連通性: EBI/EMI,I²C,Microwire,SPI,UART/USART
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器類型: ROMless
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
25
AT/TSC8x251G2D
4135F–8051–11/06
4. If this instruction addresses external memory location, add 2(N+2) to the number of
states (N: number of wait states).
Table 21.
Summary of Increment and Decrement Instructions
Notes: 1. A shaded cell denotes an instruction in the C51 Architecture.
2. If this instruction addresses an I/O Port (Px, x = 0-3), add 2 to the number of states.
Add 3 if it addresses a Peripheral SFR.
IncrementINC <dest>dest opnd
← dest opnd + 1
IncrementINC <dest>, <src>dest opnd
← dest opnd + src opnd
DecrementDEC <dest>dest opnd
← dest opnd - 1
DecrementDEC <dest>, <src>dest opnd
← dest opnd - src opnd
Mnemonic
<dest>,
<src>
(1)
Comments
Binary Mode
Source Mode
Bytes
States
Bytes
States
INC
DEC
AACC by 1
1
Rn
Register by 1
1
2
dir8
Direct address (on-chip RAM or
SFR) by 1
22(2)
at Ri
Indirect address by 1
1
3
2
4
INC
DEC
Rm, #short
Byte register by 1, 2, or 4
3
2
1
WRj, #short
Word register by 1, 2, or 4
3
2
1
INC
DRk, #short
Double word register by 1, 2, or 4
3
4
2
3
DEC
DRk, #short
Double word register by 1, 2, or 4
3
5
2
4
INC
DPTR
Data pointer by 1
1
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