- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄360558 > 90S1200 (Atmel Corp.) -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash PDF資料下載
參數(shù)資料
| 型號： | 90S1200 |
| 廠商： | Atmel Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 中文描述： | 位AVR微控制器具有8K字節(jié)的系統(tǒng)內(nèi)可編程閃存 |
| 文件頁數(shù)： | 42/71頁 |
| 文件大?。?/td> | 1416K |
| 代理商： | 90S1200 |
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頁當(dāng)前第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
42
AT90S1200
0838H
–
AVR
–
03/02
Programming the EEPROM
The programming algorithm for the EEPROM data memory is as follows (refer to
“
Pro-
gramming the Flash
”
for details on command, address and data loading):
1.
A: Load Command
“
0001 0001
”
.
2.
C: Load Address Low Byte ($00 - $3F).
3.
D: Load Data Low Byte ($00 - $FF).
4.
E: Write Data Low Byte.
Reading the EEPROM
The algorithm for reading the EEPROM memory is as follows (refer to
“
Programming the
Flash
”
for details on command and address loading):
1.
A: Load Command
“
0000 0011
”
.
2.
C: Load Address Low Byte ($00 - $3F).
3.
Set OE to
“
0
”
, and BS to
“
0
”
. The EEPROM data byte can now be read at DATA.
4.
Set OE to
“
1
”
.
Programming the Fuse Bits
The algorithm for programming the Fuse bits is as follows (refer to
“
Programming the
Flash
”
for details on command and data loading):
1.
A: Load Command
“
0100 0000
”
.
2.
D: Load Data Low Byte. Bit n =
“
0
”
programs and bit n =
“
1
”
erases the Fuse bit.
Bit 5 = SPIEN Fuse
Bit 0 = RCEN Fuse
Bit 7 - 6, 4 - 1 =
“
1
”
. These bits are reserved and should be left unprogrammed (
“
1
”
).
3.
Give WR a
t
WLWH_PFB
wide negative pulse to execute the programming;
t
WLWH_PFB
is found in Table 17. Programming the Fuse bits does not generate any activity
on the RDY/BSY pin.
Programming the Lock Bits
The algorithm for programming the Lock bits is as follows (refer to
“
Programming the
Flash
”
for details on command and data loading):
1.
A: Load Command
“
0010 0000
”
.
2.
D: Load Data Low Byte. Bit n =
“
0
”
programs the Lock bit.
Bit 2 = Lock Bit2
Bit 1 = Lock Bit1
Bit 7 - 3, 0 =
“
1
”
. These bits are reserved and should be left unprogrammed (
“
1
”
).
3.
E: Write Data Low Byte.
The Lock bits can only be cleared by executing Chip Erase.
Reading the Fuse and Lock
Bits
The algorithm for reading the Fuse and Lock bits is as follows (refer to
“
Programming
the Flash
”
on page 39 for details on command loading):
1.
A: Load Command
“
0000 0100
”
.
2.
Set OE to
“
0
”
, and BS to
“
1
”
. The status of Fuse and Lock bits can now be read
at DATA (
“
0
”
means programmed).
Bit 7 = Lock Bit1
Bit 6 = Lock Bit2
Bit 5 = SPIEN Fuse
Bit 0 = RCEN Fuse
3.
Set OE to
“
1
”
.
Observe especially that BS needs to be set to
“
1
”
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 90S2313 | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 90S2343 | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 90S4414 | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| 90S8535 | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 90SCFM | 20SCFM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 90S2313 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 2K bytes In-System Programmable Flash |
| 90S2343 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 2K Bytes of In-System Programmable Flash |
| 90S4414 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K bytes In-System Programmable Flash |
| 90S7A | 制造商:QUARTZCOM 制造商全稱:QUARTZCOM the communications company 功能描述:-20 ~ +70 °C commercia l application -30 ~ +75 °C on request |
| 90S8535 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。