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参数资料
| 型号： | AT90LS8535-4JC |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 中文描述： | 8-BIT, FLASH, 4 MHz, RISC MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, MS-018AC, LCC-44 |
| 文件页数： | 8/127页 |
| 文件大小： | 2454K |
| 代理商： | AT90LS8535-4JC |
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8
AT90S/LS8535
1041H
–
11/01
assigned the 32 lowermost Data Space addresses ($00 - $1F), allowing them to be
accessed as though they were ordinary memory locations.
The I/O memory space contains 64 addresses for CPU peripheral functions as Control
Registers, Timer/Counters, A/D converters and other I/O functions. The I/O memory can
be accessed directly or as the Data Space locations following those of the register file,
$20 - $5F.
The AVR uses a Harvard architecture concept
–
with separate memories and buses for
program and data. The program memory is executed with a two-stage pipeline. While
one instruction is being executed, the next instruction is pre-fetched from the program
memory. This concept enables instructions to be executed in every clock cycle. The pro-
gram memory is in-system downloadable Flash memory.
With the relative jump and call instructions, the whole 4K address space is directly
accessed. Most AVR instructions have a single 16-bit word format. Every program
memory address contains a 16- or 32-bit instruction.
During interrupts and subroutine calls, the return address Program Counter (PC) is
stored on the stack. The stack is effectively allocated in the general data SRAM and
consequently, the stack size is only limited by the total SRAM size and the usage of the
SRAM. All user programs must initialize the SP in the reset routine (before subroutines
or interrupts are executed). The 10-bit stack pointer (SP) is read/write-accessible in the
I/O space.
The 512 bytes data SRAM can be easily accessed through the five different addressing
modes supported in the AVR architecture.
The memory spaces in the AVR architecture are all linear and regular memory maps.
Figure 5.
Memory Maps
A flexible interrupt module has its control registers in the I/O space with an additional
global interrupt enable bit in the status register. All the different interrupts have a sepa-
rate interrupt vector in the interrupt vector table at the beginning of the program
32 Gen. Purpose
Working Registers
64 I/O Registers
Internal SRAM
(512 x 8)
$0000
$001F
$0020
$005F
$0060
$025F
$000
$FFF
Data Memory
Program Memory
Program Flash
(4K x 16)
EEPROM
(512 x 8)
$000
$1FF
Data Memory
相关PDF资料 |
PDF描述 |
|---|---|
| AT90LS8535-4JI | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| AT90LS8535-4MI | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| AT90LS8535-4PC | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| AT90LS8535-4PI | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| AT90LS8535-8MC | RESISTOR, FIXED, FILM, CH |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT90LS8535-4JI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash |
| AT90LS8535-4MC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash |
| AT90LS8535-4MI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash |
| AT90LS8535-4PC | 功能描述:8位微控制器 -MCU 8k bit 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 |
| AT90LS8535-4PI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash |
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