参数资料
| 型号： | ADUC836BCPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 25/80页 |
| 文件大小： | 0K |
| 描述： | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| 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，PWM，温度传感器，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 62KB（62K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.25 V |
| 数据转换器： | A/D 7x16b; D/A 1x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 56-VFQFN 裸露焊盘，CSP |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
ADuC836
–30–
ADuC836
–31–
User Download Mode (ULOAD)
In Figure 17 we can see that it was possible to use the 62 Kbytes
of Flash/EE program memory available to the user as one single
block of memory. In this mode, all of the Flash/EE memory is
read only to user code.
However, the Flash/EE program memory can also be written to
during runtime simply by entering ULOAD mode. In ULOAD
mode, the lower 56 Kbytes of program memory can be erased
and reprogrammed by user software, as shown in Figure 19.
ULOAD mode can be used to upgrade your code in the field via
any user defined download protocol. Configuring the SPI port on
the ADuC836 as a slave, it is possible to completely reprogram
the 56 Kbytes of Flash/EE program memory in only 5 seconds
(see Application Note uC007).
Alternatively, ULOAD mode can be used to save data to the
56 Kbytes of Flash/EE memory.This can be extremely useful in
data logging applications where the ADuC836 can provide up to
60 Kbytes of NV data memory on-chip (4 Kbytes of dedicated
Flash/EE data memory also exist).
The upper 6 Kbytes of the 62 Kbytes of Flash/EE program memory
are only programmable via serial download or parallel program-
ming.This means that this space appears as read-only to user
code.Therefore, it cannot be accidently erased or reprogrammed
by erroneous code execution.This makes it very suitable to use
the 6 Kbytes as a bootloader. A Bootload Enable option exists in
the serial downloader to “Always RUN from E000h after Reset.”
If using a bootloader, this option is recommended to ensure that
the bootloader always executes correct code after reset.
Programming the Flash/EE program memory via ULOAD mode
is described in more detail in the description of ECON and also
in Application Note uC007.
FFFFH
E000H
DFFFH
0000H
USER BOOTLOADER SPACE
THE USER BOOTLOADER SPACE
CAN BE PROGRAMMED IN
DOWNLOAD/DEBUG MODE VIA THE
KERNEL BUT IS READ ONLY WHEN
EXECUTING USER CODE
6 KBYTE
F800H
F7FFH
USER DOWNLOAD SPACE
EITHER THE DOWNLOAD/DEBUG KERNEL
OR USER CODE (IN ULOAD MODE) CAN
PROGRAM THIS SPACE.
EMBEDDED DOWNLOAD/DEBUG KERNEL
PERMANENTLY EMBEDDED FIRMWARE ALLOWS CODE
TO BE DOWNLOADED TO ANY OF THE 62 KBYTES OF
ON-CHIP PROGRAM MEMORY. THE KERNEL PROGRAM
APPEARS AS ‘NOP’ INSTRUCTIONS TO USER CODE.
56 KBYTE
2 KBYTE
62 KBYTES
OF USER
CODE
MEMORY
Figure 19. Flash/EE Program Memory Map in
ULOAD Mode
Flash/EE Program Memory Security
The ADuC836 facilitates three modes of Flash/EE program memory
security.These modes can be independently activated, restrict-
ing access to the internal code space.These security modes can
be enabled as part of serial download protocol, as described
in Application Note uC004, or via parallel programming.The
ADuC836 offers the following security modes:
Lock Mode
This mode locks the code memory, disabling parallel program-
ming of the program memory. However, reading the memory in
Parallel mode and reading the memory via a MOVC command
from external memory is still allowed.This mode is deactivated
by initiating an “erase code and data” command in Serial Down-
load or Parallel Programming modes.
Secure Mode
This mode locks the code memory, disabling parallel program-
ming of the program memory. Reading/verifying the memory
in Parallel mode and reading the internal memory via a MOVC
command from external memory is also disabled.This mode is
deactivated by initiating an “erase code and data” 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 down-
load reset as a normal reset only. It will therefore not enter Serial
Download mode, but only execute a normal reset sequence.
Serial Safe mode can only be disabled by initiating an “erase code
and data” command in parallel programming mode.
REV. A
相关PDF资料 |
PDF描述 |
|---|---|
| ADUC843BSZ62-5 | IC ADC 12BIT W/FLASH MCU 52-MQFP |
| ADUC845BCPZ62-5 | IC FLASH MCU W/24BIT ADC 56-CSP |
| ADUC847BCPZ62-5 | IC MCU FLASH W/24BIT ADC 56-CSP |
| ADV202BBCZ-135 | IC CODEC VIDEO 135MHZ 144CSPBGA |
| ADV212BBCZ-115 | IC CODEC VID JPEG 2000 121CSPBGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC836BCPZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP 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 |
| ADUC836BS | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Analog Devices 功能描述:8BIT MCU +16BIT DUAL ADC MQFP52 |
| ADUC836BS | 制造商:Analog Devices 功能描述:IC SEMICONDUCTOR ((NS)) |
| ADUC836BSZ | 功能描述:IC ADC DUAL 16BIT W/MCU 52-MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| ADUC841 | 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
发布紧急采购，3分钟左右您将得到回复。