参数资料
型号: AT90S8515-8AC
厂商: Atmel
文件页数: 2/112页
文件大小: 0K
描述: IC MCU 8K FLSH 8MHZ 44TQFP
标准包装: 160
系列: AVR® 90S
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 8KB(4K x 16)
程序存储器类型: 闪存
EEPROM 大小: 512 x 8
RAM 容量: 512 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 6 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 44-TQFP
包装: 托盘
10
AT90S8515
0841G–09/01
General-purpose
Register File
Figure 6 shows the structure of the 32 general-purpose working registers in the CPU.
Figure 6. AVR CPU General-purpose Working Registers
All the register operating instructions in the instruction set have direct and single-cycle
access to all registers. The only exception are 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 Figure 6, 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 phys-
ically implemented 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.
X-register, Y-register and
Z-register
The registers R26..R31 have some added functions to their general-purpose usage.
These registers are address pointers for indirect addressing of the Data Space. The
three indirect address registers X, Y, and Z are defined as:
Figure 7. X-, Y-, and Z-registers
7
0
Addr.
R0
$00
R1
$01
R2
$02
R13
$0D
General
R14
$0E
Purpose
R15
$0F
Working
R16
$10
Registers
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
15
0
X - register
7
0
7
0
R27 ($1B)
R26 ($1A)
15
0
Y - register
7
0
7
0
R29 ($1D)
R28 ($1C)
15
0
Z - register
7
0
7
0
R31 ($1F)
R30 ($1E)
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AT90S8515-8JC 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT90S8515-8JI 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT90S8515-8PC 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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