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| 型号： | ADUC824BSZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 33/68页 |
| 文件大小： | 0K |
| 描述： | IC MCU 8K FLASH ADC/DAC 52MQFP |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心处理器： | 8052 |
| 芯体尺寸： | 8-位 |
| 速度： | 12.58MHz |
| 连通性： | EBI/EMI，I²C，SPI，UART/USART |
| 外围设备： | POR，PSM，温度传感器，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 8KB（8K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 640 x 8 |
| RAM 容量： | 256 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.25 V |
| 数据转换器： | A/D 3x16b，4x24b; D/A 1x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 52-QFP |
| 包装： | 托盘 |
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REV. B
ADuC824
–39–
Table XII. Flash/EE Memory Parallel Programming Modes
Port 3 Pins
Programming
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Mode
XXXX
000Erase Flash/EE
Program, Data, and
Security Modes
XXXX
001Read Device
Signature/ID
X
1010Program Code Byte
X
0010Program Data Byte
X
1011Read Code Byte
X
0011Read Data Byte
XXXX
100Program Security
Modes
XXXX
101Read/Verify Security
Modes
All other codes
Redundant
Flash/EE Program Memory Security
The ADuC824 facilitates three modes of Flash/EE program
memory security. These modes can be independently activated,
restricting access to the internal code space. These security
modes can be enabled as part of the user interface available on all
ADuC824 serial or parallel programming tools referenced on the
MicroConverter web page at www.analog.com/microconverter.
The security modes available on the ADuC824 are described
as follows:
Lock Mode
This mode locks code in memory, disabling parallel programming
of the program memory although reading the memory in parallel
mode is still allowed. This mode is deactivated by initiating a
“code-erase” command in serial download or parallel program-
ming modes.
Secure Mode
This mode locks code in memory, disabling parallel programming
(program and verify/read commands) as well as disabling the
execution of a ‘MOVC’ instruction from external memory,
which is attempting to read the op codes from internal memory.
This mode is deactivated by initiating a “code-erase” command
in serial download or parallel programming modes.
Serial Safe Mode
This mode disables serial download capability on the device. If
Serial Safe mode is activated and an attempt is made to reset
the part into serial download mode, i.e., RESET asserted and
deasserted with
PSEN low, the part will interpret the serial
download reset as a normal reset only. Therefore, it will not
enter serial download mode but only execute a normal reset
sequence. Serial Safe mode can only be disabled by initiating a
code-erase command in parallel programming mode.
Using the Flash/EE Data Memory
The user Flash/EE data memory array consists of 640 bytes that
are configured into 160 (00H to 9FH) 4-byte pages as shown in
Figure 30.
9FH
BYTE 1
BYTE 2
BYTE 3
BYTE 4
00H
BYTE 1
BYTE 2
BYTE 3
BYTE 4
Figure 30. Flash/EE Data Memory Configuration
As with other ADuC824 user-peripheral circuits, the interface to
this memory space is via a group of registers mapped in the SFR
space. A group of four data registers (EDATA1–4) are used to
hold 4-byte page data just accessed. EADRL is used to hold the
8-bit address of the page to be accessed. Finally, ECON is an
8-bit control register that may be written with one of five Flash/EE
memory access commands to trigger various read, write, erase, and
verify functions. These registers can be summarized as follows:
ECON:
SFR Address: B9H
Function:
Controls access to 640 Bytes
Flash/EE Data Space.
Default:
00H
EADRL:
SFR Address: C6H
Function:
Holds the Flash/EE Data Page
Address. (640 Bytes => 160 Page
Addresses.)
Default:
00H
EDATA 1–4: SFR Address: BCH to BFH respectively
Function:
Holds Flash/EE Data memory
page write or page read data bytes.
Default:
EDATA1–2 –> 00H
EDATA3–4 –> 00H
A block diagram of the SFR interface to the Flash/EE Data
Memory array is shown in Figure 31.
9FH
BYTE 1 BYTE 2 BYTE 3 BYTE 4
00H
EDATA1 (BYTE 1)
EDATA2 (BYTE 2)
EDATA3 (BYTE 3)
EDATA4 (BYTE 4)
EADRL
ECON COMMAND
INTERPRETER LOGIC
ECON
BYTE 1 BYTE 2 BYTE 3 BYTE 4
FUNCTION:
RECEIVES COMMAND DATA
FUNCTION:
HOLDS THE 8-BIT PAGE
ADDRESS POINTER
FUNCTION:
INTERPRETS THE FLASH
COMMAND WORD
FUNCTION:
HOLDS THE 4-BYTE
PAGE DATA
Figure 31. Flash/EE Data Memory Control and Configuration
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相关代理商/技术参数 |
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|---|---|
| ADUC824BSZ-DEN | 功能描述:8052 MicroConverter? ADuC8xx Microcontroller IC 8-Bit 12.58MHz 8KB (8K x 8) FLASH 制造商:analog devices inc. 系列:MicroConverter? ADuC8xx 包装:- 零件状态:上次购买时间 核心处理器:8052 核心尺寸:8-位 速度:12.58MHz 连接性:EBI/EMI，I2C，SPI，UART/USART 外设:POR，PSM，温度传感器，WDT I/O 数:34 程序存储容量:8KB（8K x 8） 程序存储器类型:闪存 EEPROM 容量:640 x 8 RAM 容量:256 x 8 电压 - 电源（Vcc/Vdd）:2.7 V ~ 5.25 V 数据转换器:A/D 3x16b，4x24b；D/A 1x12b 振荡器类型:内部 工作温度:-40°C ~ 85°C（TA） 封装/外壳:- 供应商器件封装:- 标准包装:1 |
| ADUC824BSZ-REEL | 功能描述:IC MCU 8K FLASH ADC/DAC 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC831 | 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU |
| ADUC831BCP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADUC831BCP-REEL | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:12-BIT ADC WITH EMBEDDED 8-BIT MCU I.C. - Tape and Reel |
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