參數(shù)資料
型號(hào): MC68HC05E6MDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: PLASTIC, SOIC-28
文件頁數(shù): 63/140頁
文件大?。?/td> 1141K
代理商: MC68HC05E6MDWR2
Memory and Registers
EEPROM
MC68HC05E6 — Rev. 1.0
MOTOROLA
Memory and Registers
29
5-mem
space is arranged into five 32-byte blocks: $0100–$011F,
$0120–$013F, $0140–$015F, $0160–$017F and $0180–$019F).
Performing a bulk erase to any EEPROM address will erase the entire
160 byte EEPROM array.
EELATCH — EEPROM latch control
1 = EEPROM address and data buses are configured for
programming; reads from the array are inhibited while this bit
is set.
0 = EEPROM address and data buses are configured for normal
reads.
EERC — EEPROM RC oscillator control
1 = The EEPROM section uses the internal RC oscillator instead of
the CPU clock; a time delay of tRCON should be allowed for the
RC oscillator to stabilize (see Table 23).
0 = The EEPROM section uses the CPU clock.
NOTE:
The EERC bit should always be set if the bus frequency falls below 1.0
MHz.
EEPGM — EEPROM programming power enable/disable
1 = Voltage from the charge pump is supplied to the EEPROM
array in order that programming or erasing may take place.
0 = Voltage from the charge pump is removed from the EEPROM
array.
EEPROM
programming and
erasing
procedures
To program a byte of EEPROM, set EELATCH = CPEN = 1, set ER1 =
ER0 = 0, write data to the desired address and then set EEPGM for a
time tEPGM.
Table 2 Erase mode select
ER1
ER0
Mode
0
No erase
0
1
Byte erase
1
0
Block erase
1
Bulk erase
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