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參數(shù)資料
| 型號： | M37542F8GP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 106/124頁 |
| 文件大小： | 1238K |
| 代理商： | M37542F8GP |
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7542 Group
Rev.3.03
Jul 11, 2008
Page 80 of 117
REJ03B0006-0303
Table 12 Definition of each bit in status register
● Status Register
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 12 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 reset 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 reset to “0” when it is cleared.
If “1” is written for any of the SR5 and SR4 bits, the read array,
program, and block erase commands are not accepted. Before ex-
ecuting these commands, execute the clear status register
command (5016) and clear the status register.
Also, if any commands are not correct, both SR5 and SR4 are set
to “1”.
Each bit of
SRD bits
SR7 (bit7)
SR6 (bit6)
SR5 (bit5)
SR4 (bit4)
SR3 (bit3)
SR2 (bit2)
SR1 (bit1)
SR0 (bit0)
Sequencer status
Reserved
Erase status
Program status
Reserved
Status name
“1”
Ready
-
Terminated in error
-
“0”
Busy
-
Terminated normally
-
Definition
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| M37542M4-XXXHP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQCC36 |
| M37542M2-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO36 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37542F8GP#U0 | 功能描述:MCU 3/5V 32K+4K PB-FREE 32-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M37542F8GPSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP MICROCOMPUTER |
| M37542F8HP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37542F8SP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37542F8SP#U0 | 制造商:Renesas Electronics Corporation 功能描述:MCU 4.0/5.5V 32K PB-FREE 32-SDIP - Trays |
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