收藏本站
参数资料
型号： ADUC845BCPZ8-3
厂商： ANALOG DEVICES INC
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56
封装： 8 X 8 MM, LEAD FREE, MO-220-VLLD-2, LFCSP-56
文件页数： 56/108页
文件大小： 1940K
代理商： ADUC845BCPZ8-3
ADuC845/ADuC847/ADuC848
Rev. B | Page 51 of 108
USING FLASH/EE DATA MEMORY
The 4 kbytes of Flash/EE data memory are configured as 1024
pages, each of 4 bytes. As with the other ADuC845/ADuC847/
ADuC848 peripherals, 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) holds the 4 bytes of data at each
page. The page is addressed via the EADRH and EADRL
registers. Finally, ECON is an 8-bit control register that can be
written to with one of nine Flash/EE memory access commands
to trigger various read, write, erase, and verify functions. A
block diagram of the SFR interface to the Flash/EE data memory
array is shown in Figure 32.
ECON—Flash/EE Memory Control SFR
Programming either Flash/EE data memory or Flash/EE
program memory is done through the Flash/EE memory
control SFR (ECON). This SFR allows the user to read, write,
erase, or verify the 4 kbytes of Flash/EE data memory or the
56 kbytes of Flash/EE program memory.
BYTE 1
(0000H)
E
DATA1
S
F
R
BYTE 1
(0004H)
BYTE 1
(0008H)
BYTE 1
(000CH)
BYTE 1
(0FF8H)
BYTE 1
(0FFCH)
BYTE 2
(0001H)
E
DATA2
S
F
R
BYTE 2
(0005H)
BYTE 2
(0009H)
BYTE 2
(000DH)
BYTE 2
(0FF9H)
BYTE 2
(0FFDH)
BYTE 3
(0002H)
E
DATA3
S
F
R
BYTE 3
(0006H)
BYTE 3
(000AH)
BYTE 3
(000EH)
BYTE 3
(0FFAH)
BYTE 3
(0FFEH)
BYTE 4
(0003H)
E
DATA4
S
F
R
BYTE 4
(0007H)
BYTE 4
(000BH)
BYTE 4
(000FH)
BYTE 4
(0FFBH)
(0FFFH)
01H
00H
02H
03H
3FEH
3FFH
P
A
GE
ADDRE
S
(E
ADRH/L)
BYTE
ADDRESSES
ARE GIVEN IN
BRACKETS
04741-032
BYTE 4
Figure 32. Flash/EE Data Memory Control and Configuration
Table 32. ECON—Flash/EE Memory Commands
ECON Value
Command Description
(Normal Mode, Power-On Default)
Command Description
(ULOAD Mode)
01H Read
4 bytes in the Flash/EE data memory, addressed by the
page address EADRH/L, are read into EDATA1–4.
Not implemented. Use the MOVC instruction.
02H Write
Results in 4 bytes in EDATA1–4 being written to the
Flash/EE data memory, at the page address given by
EADRH (0
≤ EADRH < 0400H). Note that the 4 bytes in the
page being addressed must be pre-erased.
Bytes 0 to 255 of internal XRAM are written to the 256 bytes of
Flash/EE program memory at the page address given by
EADRH/L (0
≤ EADRH/L < E0H).
Note that the 256 bytes in the page being addressed must be
pre-erased.
03H
Reserved.
04H Verify
Verifies that the data in EDATA1–4 is contained in the
page address given by EADRH/L. A subsequent read of
the ECON SFR results in a 0 being read if the verification
is valid, or a nonzero value being read to indicate an
invalid verification.
Not implemented. Use the MOVC and MOVX instructions to
verify the Write in software.
05H Erase Page
4-byte page of Flash/EE data memory address is erased
by the page address EADRH/L.
64-byte page of FLASH/EE program memory addressed by the
byte address EADRH/L is erased. A new page starts when EADRL
is equal to 00H, 80H, or C0H.
06H Erase All
4 kbytes of Flash/EE data memory are erased.
The entire 56 kbytes of ULOAD are erased.
81H ReadByte
The byte in the Flash/EE data memory, addressed by the
byte address EADRH/L, is read into EDATA1 (0
≤ EADRH/L
≤ 0FFFH).
Not implemented. Use the MOVC command.
82H WriteByte
The byte in EDATA1 is written into Flash/EE data memory
at the byte address EADRH/L.
The byte in EDATA1 is written into Flash/EE program memory at
the byte address EADRH/L (0 ≤ EADRH/L ≤ DFFFH).
0FH EXULOAD
Configures the ECON instructions (above) to operate on
Flash/EE data memory.
Enters normal mode, directing subsequent ECON instructions to
operate on the Flash/EE data memory.
F0H ULOAD
Enters ULOAD mode; subsequent ECON instructions
operate on Flash/EE program memory.
Enables the ECON instructions to operate on the Flash/EE
program memory. ULOAD entry mode.
相关PDF资料
PDF描述
ADUM2401ARWZ-RL SPECIALTY ANALOG CIRCUIT, PDSO16
AE101MD1CQ TOGGLE SWITCH, SPDT, LATCHED, 2A, 30VDC, THROUGH HOLE-STRAIGHT
AE105SD1CB TOGGLE SWITCH, SPDT, MOMENTARY, 0.02A, 20VDC, THROUGH HOLE-STRAIGHT
AE108MD1AQ TOGGLE SWITCH, SPDT, MOMENTARY, 2A, 30VDC, THROUGH HOLE-RIGHT ANGLE
5-1437556-7 TOGGLE SWITCH, SPDT, MOMENTARY, 2A, 30VDC, THROUGH HOLE-RIGHT ANGLE
相关代理商/技术参数
参数描述
ADUC845BCPZ8-5 功能描述:IC MCU FLASH 24BIT ADC 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
ADUC845BS62-3 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:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 52MQFP - Bulk
ADUC845BS62-5 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:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 5V 52MQFP - Bulk 制造商:Analog Devices 功能描述:IC MICROCONTROLLER
ADUC845BS8-3 制造商:Analog Devices 功能描述:
ADUC845BS8-5 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:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 5V 52MQFP - Bulk
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*