参数资料
型号: MEGA32C1-15AZ
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP32
封装: 7 X 7 MM, 1 MM HEIGHT, 0.80 MM PITCH, LEAD FREE, PLASTIC, TQFP-32
文件页数: 6/132页
文件大小: 10886K
代理商: MEGA32C1-15AZ
14
7593L–AVR–09/12
AT90USB64/128
Bit 0 – C: Carry Flag
The Carry Flag C indicates a carry in an arithmetic or logic operation. See the “Instruction set
summary” on page 423 for detailed information.
5.5
General purpose register file
The register file is optimized for the AVR Enhanced RISC instruction set. In order to achieve the
required performance and flexibility, the following input/output schemes are supported by the
register file:
One 8-bit output operand and one 8-bit result input
Two 8-bit output operands and one 8-bit result input
Two 8-bit output operands and one 16-bit result input
One 16-bit output operand and one 16-bit result input
Figure 5-2 shows the structure of the 32 general purpose working registers in the CPU.
Figure 5-2.
AVR CPU general purpose working registers.
Most of the instructions operating on the Register File have direct access to all registers, and
most of them are single cycle instructions.
As shown in Figure 5-2, 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-pointer registers can be set to index any register in the file.
5.5.1
The X-register, Y-register, and Z-register
The registers R26..R31 have some added functions to their general purpose usage. These reg-
isters are 16-bit address pointers for indirect addressing of the data space. The three indirect
address registers X, Y, and Z are defined as described in Figure 5-3.
70Addr.
R0
0x00
R1
0x01
R2
0x02
R13
0x0D
General
R14
0x0E
purpose
R15
0x0F
working
R16
0x10
registers
R17
0x11
R26
0x1A
X-register Low byte
R27
0x1B
X-register High byte
R28
0x1C
Y-register Low byte
R29
0x1D
Y-register High byte
R30
0x1E
Z-register Low byte
R31
0x1F
Z-register High byte
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相关代理商/技术参数
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MEGA32C1-15MZ 制造商:Atmel Corporation 功能描述:
MEGA32C1-ESAZ 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16K/32K/64K Bytes In-System Programmable Flash
MEGA32C1-ESMZ 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16K/32K/64K Bytes In-System Programmable Flash
MEGA32M1-15AZ 制造商:Atmel Corporation 功能描述:
MEGA32M1-15MZ 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16K/32K/64K Bytes In-System Programmable Flash