參數(shù)資料
型號: MC68HC05P18MDW
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: SOIC-28
文件頁數(shù): 115/144頁
文件大小: 1348K
代理商: MC68HC05P18MDW
Advance Information
MC68HC(8)05P18 — Rev. 2.0
72
EEPROM
MOTOROLA
EEPROM
8.3 EEPROM Programming Register
The contents and use of the programming register are discussed here.
CPEN — Charge Pump Enable Bit
When set, CPEN enables the charge pump which produces the
internal EEPROM programming voltage. This bit should be set
concurrently with the LATCH bit. The programming voltage will not be
available until EEPGM is set. The charge pump should be disabled
when not in use. CPEN is readable and writable and is cleared by
reset.
ER1 and ER0 — Erase Select Bits
ER1 and ER0 form a 2-bit field which is used to select one of three
erase modes: byte, block, or bulk. Table 8-1 shows the modes
selected for each bit configuration. These bits are readable and
writable and are cleared by reset.
Address:
$001C
Bit 7
654321
Bit 0
Read:
0
CPEN
0
ER1
ER0
LATCH
EERC
EEPGM
Write:
Reset:
00000000
= Unimplemented
Figure 8-1. EEPROM Programming Register (EEPROG)
Table 8-1. Erase Mode Select
ER1
ER0
Mode
0
Program (no erase)
0
1
Byte erase
1
0
Block erase
1
Bulk erase
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