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參數(shù)資料
| 型號： | M38514E6-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO42 |
| 封裝： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件頁數(shù)： | 52/91頁 |
| 文件大?。?/td> | 1161K |
| 代理商： | M38514E6-XXXFP |
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Rev.1.01
Oct 15, 2003
page 56 of 89
3851 Group (Built-in 24 KB or more ROM)
Symbol
Table 17 Definition of each bit in status register (SRD)
Status Register (SRD)
The status register shows the operating status of the flash
memory and whether erase operations and programs ended suc-
cessfully or in error. It can be read in the following ways:
(1) By reading an arbitrary address from the User ROM area after
writing the read status register command (7016)
(2) By reading an arbitrary address from the User ROM area in the
period from when the program starts or erase operation starts
to when the read array command (FF16) is input.
Also, the status register can be cleared by writing the clear status
register command (5016).
After reset, the status register is set to “8016”.
Table 17 shows the status register. Each bit in this register is ex-
plained below.
Sequencer status (SR7)
The sequencer status indicates the operating status of the flash
memory. This bit is set to “0” (busy) during write or erase operation
and is set to “1” when these operations ends.
After power-on, the sequencer status is set to “1” (ready).
Erase status (SR5)
The erase status indicates the operating status of erase operation.
If an erase error occurs, it is set to “1”. When the erase status is
cleared, it is set to “0”.
Program status (SR4)
The program status indicates the operating status of write opera-
tion. When a write error occurs, it is set to “1”.
The program status is set to “0” when it is cleared.
If “1” is written for any of the SR5 and SR4 bits, the program,
erase all blocks, and block erase commands are not accepted.
Before executing these commands, execute the clear status regis-
ter command (5016) and clear the status register.
Also, if any commands are not correct, both SR5 and SR4 are set
to “1”.
SR7 (bit7)
SR6 (bit6)
SR5 (bit5)
SR4 (bit4)
SR3 (bit3)
SR2 (bit2)
SR1 (bit1)
SR0 (bit0)
Definition
“1”
“0”
Status name
Sequencer status
Reserved
Erase status
Program status
Reserved
Ready
-
Terminated in error
-
Busy
-
Terminated normally
-
相關PDF資料 |
PDF描述 |
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| M38514E6FP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO42 |
| M38514M6-XXXFP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO42 |
| M38514E6-XXXSP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP42 |
| M38517F8SP | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PDIP42 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M38517T-ADS | 功能描述:DEV TMP TRGT BRD FOR M38517RSS & RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 標準包裝:1 系列:- 附件類型:適配器板 適用于相關產(chǎn)品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE |
| M38517T-PAC | 功能描述:DEV SIMPLE TOOL EMULATOR FOR M38 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 內(nèi)電路編程器、仿真器以及調(diào)試器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 19/Jul/2010 標準包裝:1 系列:* 類型:* 適用于相關產(chǎn)品:* 所含物品:* |
| M3852 BK001 | 制造商:Alpha Wire 功能描述:CBL 8COND 14AWG BLK 1000' |
| M3852 BK002 | 制造商:Alpha Wire 功能描述:CBL 8COND 14AWG BLK 500' |
| M3852 BK005 | 制造商:Alpha Wire 功能描述:CBL 8COND 14AWG BLK 100' |
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