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參數(shù)資料
| 型號： | C8051F005 |
| 廠商： | Cygnal Technologies |
| 英文描述： | 25 MIPS,32k Flash,2.25k Ram,12bit ADC,64 Pin MCU(25 MIPS,32k 閃速存儲器,2.25k Ram,12位 ADC,64 腳 MCU) |
| 中文描述： | 25 MIPS的，32K閃存，2.25k羊，12位ADC，64引腳微控制器（25 MIPS的，32K的閃速存儲器，2.25k羊，12位ADC和64腳微控制器） |
| 文件頁數(shù)： | 165/170頁 |
| 文件大?。?/td> | 1294K |
| 代理商： | C8051F005 |
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4.2001; Rev. 1.3
CYGNAL Integrated Products, Inc.
2001
Page 165
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PRELIMINARY
21.2.
The Flash memory can be programmed directly over the JTAG interface using the Flash Control, Flash Data, Flash
Address, and Flash Scale registers. These Indirect Data Registers are accessed via the JTAG Instruction Register.
Read and write operations on indirect data registers are performed by first setting the appropriate DR address in the
IR register. Each read or write is then initiated by writing the appropriate Indirect Operation Code (IndOpCode) to
the selected data register. Incoming commands to this register have the following format:
19:18
IndOpCode
IndOpCode: These bit set the operation to perform according to the following table:
IndOpCode
0x
10
11
The Poll operation is used to check the Busy bit as described below. Although a Capture-DR is performed, no
Update-DR is allowed for the Poll operation. Since updates are disabled, polling can be accomplished by shifting
in/out a single bit.
The Read operation initiates a read from the register addressed by the IR. Reads can be initiated by shifting only 2
bits into the indirect register. After the read operation is initiated, polling of the Busy bit must be performed to
determine when the operation is complete.
The write operation initiates a write of WriteData to the register addressed by the IR. Registers of any width up to
18 bits can be written. If the register to be written contains fewer than 18 bits, the data in WriteData should be left-
justified, i.e. its MSB should occupy bit 17 above. This allows shorter registers to be written in fewer JTAG clock
cycles. For example, an 8-bit register could be written by shifting only 10 bits. After a Write is initiated, the Busy
bit should be polled to determine when the next operation can be initiated. The contents of the Instruction Register
should not be altered while either a read or write operation is in progress.
Outgoing data from the indirect Data Register has the following format:
19
0
The Busy bit indicates that the current operation is not complete. It goes high when an operation is initiated and
returns low when complete. Read and Write commands are ignored while Busy is high. In fact, if polling for Busy
to be low will be followed by another read or write operation, JTAG writes of the next operation can be made while
checking for Busy to be low. They will be ignored until Busy is read low, at which time the new operation will
initiate. This bit is placed at bit 0 to allow polling by single-bit shifts. When waiting for a Read to complete and
Busy is 0, the following 18 bits can be shifted out to obtain the resulting data. ReadData is always right-justified.
This allows registers shorter than 18 bits to be read using a reduced number of shifts. For example, the result from a
byte-read requires 9 bit shifts (Busy + 8 bits).
Flash Programming Commands
17:0
WriteData
Operation
Poll
Read
Write
18:1
0
ReadData
Busy
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C8051F005/0046 | 制造商:Silicon Laboratories Inc 功能描述: |
| C8051F005DK | 功能描述:開發(fā)板和工具包 - 8051 MCU DEVELOPMENT KIT W/ US POWER SUPPLY RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| C8051F005DK-A | 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| C8051F005DK-B | 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| C8051F005DK-E | 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
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