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參數(shù)資料
| 型號： | EVAL-ADUC834QSZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 26/80頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT DEV QUICK START ADUC834 |
| 標準包裝： | 1 |
| 系列： | QuickStart™ 套件 |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | ADuC834 |
| 所含物品： | 評估板，線纜，電源，軟件和文檔 |
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REV. A
–32–
ADuC834
BYTE 1
(0000H)
EDATA1
SFR
BYTE 1
(0004H)
BYTE 1
(0008H)
BYTE 1
(000CH)
BYTE 1
(0FF8H)
BYTE 1
(0FFCH)
BYTE 2
(0001H)
EDATA2
SFR
BYTE 2
(0005H)
BYTE 2
(0009H)
BYTE 2
(000DH)
BYTE 2
(0FF9H)
BYTE 2
(0FFDH)
BYTE 3
(0002H)
EDATA3
SFR
BYTE 3
(0006H)
BYTE 3
(000AH)
BYTE 3
(000EH)
BYTE 3
(0FFAH)
BYTE 3
(0FFEH)
BYTE 4
(0003H)
EDATA4
SFR
BYTE 4
(0007H)
BYTE 4
(000BH)
BYTE 4
(000FH)
BYTE 4
(0FFBH)
BYTE 4
(0FFFH)
01H
00H
02H
03H
3FEH
3FFH
PAGE
ADDRESS
(E
A
D
RH/L)
BYTE
ADDRESSES
ARE GIVEN IN
BRACKETS
Using the Flash/EE Data Memory
The 4 Kbytes of Flash/EE data memory is configured as 1024 pages,
each of 4 bytes. As with the other ADuC834 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)
is used to hold the 4 bytes of data at each page. The page is
addressed via the two registers EADRH and EADRL. Finally,
ECON is an 8-bit control register that may be written 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 20.
ECON—Flash/EE Memory Control SFR
Programming of either the Flash/EE data memory or the 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.
Table XIV.
ECON—Flash/EE Memory Commands
Command Description
ECON Value
(Normal Mode) (Power-On Default)
(ULOAD Mode)
01H
Results in 4 bytes in the Flash/EE data memory,
Not Implemented. Use the MOVC instruction.
READ
addressed by the page address EADRH/L,
being read into EDATA 1 to 4.
02H
Results in 4 bytes in EDATA1–4 being written to the
Results in bytes 0–255 of internal XRAM being written
WRITE
Flash/EE data memory, at the page address given by
to the 256 bytes of Flash/EE program memory at the page
EADRH. (0
≤ EADRH < 0400H)
address given by EADRH/L (0
≤ EADRH/L < E0H)
Note: The 4 bytes in the page being addressed must
Note: The 256 bytes in the page being addressed must
be pre-erased.
03H
Reserved Command
04H
Verifies if the data in EDATA1–4 is contained in the
Not Implemented. Use the MOVC and MOVX instructions
VERIFY
page address given by EADRH/L. A subsequent read
to verify the WRITE in software.
of the ECON SFR will result in a 0 being read if the
verification is valid, or a nonzero value being read to
indicate an invalid verification.
05H
Results in the erase of the 4 bytes page of Flash/EE data
Results in the 64-bytes page of Flash/EE program memory,
ERASE PAGE
memory addressed by the page address EADRH/L
addressed by the byte address EADRH/L being erased.
EADRL can equal any of 64 locations within the page. A new
page starts whenever EADRL is equal to 00H, 40H, 80H, or C0H
06H
Results in the erase of entire 4 Kbytes of Flash/EE
Results in the erase of the entire 56 Kbytes of ULOAD
ERASE ALL
data memory.
Flash/EE program memory
81H
Results in the byte in the Flash/EE data memory,
Not Implemented. Use the MOVC command.
READBYTE
addressed by the byte address EADRH/L, being read
into EDATA1. (0
≤ EADRH/L ≤ 0FFFH).
82H
Results in the byte in EDATA1 being written into
WRITEBYTE
Flash/EE data memory, at the byte address EADRH/L. Flash/EE program memory at the byte address
EADRH/L (0
≤ EADRH/L ≤ DFFFH)
0FH
Leaves the ECON instructions to operate on the
Enters normal mode directing subsequent ECON
EXULOAD
Flash/EE data memory.
instructions to operate on the Flash/EE data memory
F0H
Enters ULOAD mode, directing subsequent ECON
Leaves the ECON Instructions to operate on the Flash/EE
ULOAD
instructions to operate on the Flash/EE program memory. program memory.
Figure 20. Flash/EE Data Memory Control and Configuration
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| EVAL-ADUC836QS | 制造商:Analog Devices 功能描述:MCU 8BIT 8052 CISC 62KB+4KB FLASH 3.6V 48LQFP - Bulk 制造商:Analog Devices 功能描述:KIT- ADUC836 DEV SYSTEM |
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| EVAL-ADUC841QSPZ | 功能描述:KIT DEV QUICK START ADUC841 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件（MCU、DSP、FPGA、CPLD等） 系列:QuickStart™ PLUS 套件 標準包裝:1 系列:PICDEM™ 類型:MCU 適用于相關(guān)產(chǎn)品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，線纜，元件，CD，PICkit 編程器 產(chǎn)品目錄頁面:659 (CN2011-ZH PDF) |
| EVAL-ADUC841QSPZ | 制造商:Analog Devices 功能描述:Silicon Manufacturer:Analog Devices C |
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