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參數(shù)資料
| 型號(hào)： | MC68HC11EA9CFN3 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁數(shù)： | 13/58頁 |
| 文件大?。?/td> | 583K |
| 代理商： | MC68HC11EA9CFN3 |
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MOTOROLA
MC68HC11EA9
20
MC68HC11EA9TS/D
* MC68HC711EA9 only.
ODD — Program Odd Rows in Half of EEPROM (TEST)
EVEN — Program Even Rows in Half of EEPROM (TEST)
ELAT — EPROM/OTPROM Latch Control
MC68HC711EA9 only. Refer to 4.9.3 Programming EPROM with Downloaded Data.
BYTE — Byte/Other EEPROM Erase Mode
0 = Row or bulk erase mode used
1 = Erase only one byte of EEPROM
ROW — Row/All EEPROM Erase Mode (only valid when BYTE = 0)
0 = All 512 bytes of EEPROM erased
1 = Erase only one 16-byte row of EEPROM
ERASE — Erase/Normal Control for EEPROM
0 = Normal read or program mode
1 = Erase mode
EELAT — EEPROM Latch Control
0 = EEPROM address and data bus configured for normal reads
1 = EEPROM address and data bus configured for programming or erasing
PGM — EPROM/OTPROM/EEPROM Programming Voltage Enable
0 = Programming voltage to EPROM/OTPROM/EEPROM array disconnected
1 = Programming voltage to EPROM/OTPROM/EEPROM array connected
PGM can be read any time and can only be written when ELAT = 1 (for EPROM/OTPROM program-
ming) or when EELAT = 1 (for EEPROM programming).
4.10.2 CONFIG Register
The CONFIG register consists of an EEPROM byte and static latches that control the start-up configu-
ration of the MCU. The contents of the EEPROM byte are transferred into static working latches during
reset sequences. The operation of the MCU is controlled directly by these latches and not by CONFIG
itself. Although the byte is not included in the 512-byte EEPROM array, programming the CONFIG reg-
ister requires the same procedure as any byte in the array. In normal modes, changes to CONFIG do
not affect operation of the MCU until after the next reset sequence. When programming, the CONFIG
register itself is accessed. When the CONFIG register is read, the static latches are accessed.
PPROG — EPROM and EEPROM Programming Control Register
$103B
BIT 7
654321
BIT 0
ODD
EVEN
ELAT*
BYTE
ROW
ERASE
EELAT
PGM
RESET:
00000001
Table 6 BYTE/ROW Control Bits
BYTE
ROW
Action
0
Bulk Erase (All 512 Bytes)
0
1
Row Erase (16 Bytes)
1
0
Byte Erase
1
Byte Erase
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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