- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69013 > M37512F8HHP 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 PDF資料下載
參數(shù)資料
| 型號： | M37512F8HHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 63/87頁 |
| 文件大小： | 879K |
| 代理商： | M37512F8HHP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁當(dāng)前第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁
Feb 18, 2005
page 66 of 85
REJ03B0122-0101
7512 Group
Software Commands (CPU Rewrite Mode)
Table 16 lists the software commands.
After setting the CPU Rewrite Mode Select Bit of the flash memory
control register to “1”, execute a software command to specify an
erase or program operation.
Each software command is explained below.
qRead Array Command (FF16)
The read array mode is entered by writing the command code
“FF16” in the first bus cycle. When an address to be read is input in
one of the bus cycles that follow, the contents of the specified ad-
dress are read out at the data bus (D0 to D7).
The read array mode is retained intact until another command is
written.
qRead Status Register Command (7016)
The read status register mode is entered by writing the command
code “7016” in the first bus cycle. The contents of the status regis-
ter are read out at the data bus (D0 to D7) by a read in the second
bus cycle.
The status register is explained in the next section.
In the EW1 mode, do not execute this command.
qClear Status Register Command (5016)
This command is used to clear the bits SR4 and SR5 of the status
register after they have been set. These bits indicate that opera-
tion has ended in an error. To use this command, write the
command code “5016” in the first bus cycle.
qProgram Command (4016)
Program operation starts when the command code “4016” is writ-
ten in the first bus cycle. Then, if the address and data to program
are written in the 2nd bus cycle, program operation (data program-
ming and verification will start.
Whether the write operation is completed can be confirmed by
_____
reading the status register or the RY/BY Status Flag.
____
The RY/BY Status Flag is “0” (busy) during write operation and “1”
(ready) when the write operation is completed as is the status reg-
ister bit 7.
Table 16 List of software commands (CPU rewrite mode)
Do not execute this command for rewrite control program address
in the EW1 mode.
In the E/W0 mode, when the program starts, the read status reg-
ister mode is entered automatically and the contents of the status
register is read at the data bus (D0 to D7). The status register bit 7
(SR7) is set to “0” at the same time the write operation starts and
is returned to “1” upon completion of the write operation. In this
case, the read status register mode remains active until the read
array command (FF16) is written.
Fig. 73 Program flowchart
Start
Write 4016
Status register
read
Program completed
NO
YES
Write address
Write data
Program
error
NO
YES
RY/BY status flag = “1 ”?
Write
Program status flag = “0 ”?
Command
Program
Clear status register
Read array
Read status register
X
First bus cycle
Second bus cycle
FF16
7016
5016
4016
Write
X
SRD
Read
Write
(Note 2)
WA (Note 3)
WD (Note 3)
Block erase
2016
Write
D016
Write
BA (Note 4)
Mode
Address
Mode
Address
Data
(D0 to D7)
(Note 1)
Notes 1: X denotes a given address in the User ROM area .
2: SRD = Status Register Data
3: WA = Write Address, WD = Write Data
4: BA = Block Address to be erased (Input the maximum address of each block.)
Cycle number
1
2
1
2
X
Data
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37513M8-XXXHP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| M37513EFFS | 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CQCC100 |
| M37513EFHP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| M37513M8-XXXGP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| M37515M4-XXXHP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37512F8HP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512F8H-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512F8-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCHHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。