- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371050 > MC68HC11K0VFN2 (MOTOROLA INC) 8-BIT MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC11K0VFN2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQCC84 |
| 封裝： | PLASTIC, LCC-84 |
| 文件頁數(shù)： | 22/80頁 |
| 文件大?。?/td> | 420K |
| 代理商： | MC68HC11K0VFN2 |
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頁當(dāng)前第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
MOTOROLA
22
M68HC11 K Series
MC6HC11KTS/D
3.4 EEPROM
The 640-byte EEPROM is initially located at $0D80 after reset, assuming EEPROM is enabled in the
memory map by the EEON bit in the CONFIG register. EEPROM can be placed at any 4-Kbyte bound-
ary ($xD80) by writing appropriate values to the INIT2 register. Note that EEPROM can be mapped so
that it contains the vector space. Refer to
Figure 4
. The MC68HC11K0, MC68HC11K3, MC68L11K0,
and MC68L11K3 have no EEPROM. Refer to the
ordering information tables
.
Programming and erasing the EEPROM is controlled by the PPROG register, and dependent upon the
block protect (BPROT) register value. An on-chip charge pump develops the high voltage required for
programming and erasing. When the frequency of the E clock is less than 1 MHz, select the internal
clock source to drive the EEPROM charge pump by writing one to the CSEL bit in the OPTION register.
The CONFIG register consists of a single EEPROM byte. Although the byte is not included in the 640-
byte EEPROM array, programming the CONFIG register requires the same procedure as any byte in
the array. The erased state of bits in the CONFIG register is logic one. Refer to the CONFIG register
description that follows this section.
The erased state of an EEPROM byte is $FF (all ones).
To erase the EEPROM, ensure that the proper bits of the BPROT register are cleared, then complete
the following steps using the PPROG register:
1.
2.
Set the ERASE, EELAT, and appropriate BYTE and ROW bits in PPROG register.
Write to the appropriate EEPROM address with any data. Row erase only requires a write to
any location in the row. Bulk erase is done by writing to any location in the array.
Set the ERASE, EELAT, EEPGM, and appropriate BYTE and ROW bits in PPROG register.
Delay for 10 ms or more, as appropriate.
Clear the EEPGM bit in PPROG to turn off the programming voltage.
Clear the PPROG register to reconfigure the EEPROM address and data buses for normal op-
eration.
To program the EEPROM, ensure the proper bits of the BPROT register are cleared and use the
PPROG register to complete the following steps:
3.
4.
5.
6.
1.
2.
3.
4.
5.
6.
Set the EELAT bit in PPROG register.
Write data to the desired address.
Set EEPGM bit in PPROG.
Delay for 10 ms or more, as appropriate.
Clear the EEPGM bit in PPROG to turn off the programming voltage.
Clear the PPROG register to reconfigure the EEPROM address and data buses for normal op-
eration.
CAUTION
Since it is possible to perform other operations while the EEPROM programming/
erase operation is in progress, it is common to start the operation and then return
to the main program until the 10 ms is completed. When the EELAT bit is set at the
beginning of a program/erase operation, the EEPROM is electronically removed
from the memory map; thus, it is not accessible during the program/erase cycle.
Care must be taken to ensure that EEPROM resources will not be needed by any
routines in the code during the 10 ms program/erase time.
PPROG
—EEPROM Programming Control
$003B
Bit 7
6
5
4
3
2
1
Bit 0
ODD
EVEN
LVPI
BYTE
ROW
ERASE
EELAT
EEPGM
RESET:
0
0
0
0
0
0
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC11K0VFN3 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFN4 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU2 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU3 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU4 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC11K0VFN3 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller |
| MC68HC11K0VFN4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K0VFU2 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K0VFU3 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K0VFU4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。