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參數(shù)資料
| 型號： | AT43USB351M-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Full-speed/Low-speed USB Microcontroller with ADC and PWM |
| 中文描述： | 8-BIT, MROM, 24 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 8/101頁 |
| 文件大?。?/td> | 624K |
| 代理商： | AT43USB351M-AC |
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8
AT43USB351M
3302E–USB–7/04
The General-
purpose
Register File
All register operating instructions in the instruction set have direct and single cycle access to
all registers. The only exception is the five constant arithmetic and logic instructions SBCI,
SUBI, CPI, ANDI, and ORI between a constant and a register, and the LDI instruction for load
immediate constant data. These instructions apply to the second half of the registers in the
register file – R16..R31. The general SBC, SUB, CP, AND, and OR and all other operations
between two registers or on a single register apply to the entire register file.
As shown in Table 2, each register is also assigned a data memory address, mapping them
directly into the first 32 locations of the user Data Space. Although not being physically imple-
mented as SRAM locations, this memory organization provides great flexibility in access of the
registers, as the X-, Y-, and Z-registers can be set to index any register in the file.
Table 2.
AVR CPU General-purpose Working Register
Register
Address
Comment
R0
$00
R1
$01
R2
$02
..
R13
$0D
R14
$0E
R15
$0F
R16
$10
R17
$11
..
R26
$1A
X-register low byte
R27
$1B
X-register high byte
R28
$1C
Y-register low byte
R29
$1D
Y-register high byte
R30
$1E
Z-register low byte
R31
$1F
Z-register high byte
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相關(guān)代理商/技術(shù)參數(shù) |
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| AT43USB353M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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| AT43USB353M-AC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB355 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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