參數(shù)資料
型號: AT90S4433-8AC
廠商: Atmel
文件頁數(shù): 24/126頁
文件大?。?/td> 0K
描述: IC MCU 4K FLSH 8MHZ A/D 32TQFP
標準包裝: 250
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 20
程序存儲器容量: 4KB(2K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x10b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 32-TQFP
包裝: 托盤
12
AT90S/LS4433
1042H–AVR–04/03
The direct addressing reaches the entire data space. The Indirect with Displacement
mode features 63 address locations reached from the base address given by the Y- or
Z-register.
When using register indirect addressing modes with automatic pre-decrement and post-
increment, the address registers X, Y, and Z are decremented and incremented.
The 32 general purpose working registers, 64 I/O Registers and the 128 bytes of inter-
nal data SRAM in the AT90S4433 are all accessible through all these addressing
modes.
See the next section for a detailed description of the different addressing modes.
Program and Data
Addressing Modes
The AT90S4433 AVR RISC microcontroller supports powerful and efficient addressing
modes for access to the Flash Program memory, SRAM, Register File, and I/O data
memory. This section describes the different addressing modes supported by the AVR
architecture. In the figures, OP means the operation code part of the instruction word.
To simplify, not all figures show the exact location of the addressing bits.
Register Direct, Single
Register Rd
Figure 10. Direct Single Register Addressing
The operand is contained in register d (Rd).
Register Direct, Two Registers
Rd and Rr
Figure 11. Direct Register Addressing, Two Registers
Operands are contained in registers r (Rr) and d (Rd). The result is stored in register d
(Rd).
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