Holtek HT66F20 Manual page 45

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
EEPROM Register List
• HT66F20
Name
7
EEA —
EED D�
EEC —
• HT66F30
Name
7
EEA —
EED D�
EEC —
• HT66F40
Name
7
EEA —
EED D�
EEC —
• HT66F50/HT66F60
Name
7
EEA D�
EED D�
EEC —
EEA Register
• HT66F20
Bit 7
Name —
R/W —
POR —
Bit 7~5 Unimplemented, read as "0"
Bit 4~0 Data EEPROM address
Data EEPROM address bit 4~bit 0
Rev. 2.50
Bit
6 5 4
— — D4
D6 D5 D4
— — — WREN
Bit
6 5 4
— D5 D4
D6 D5 D4
— — —
Bit
6 5 4
D6 D5 D4
D6 D5 D4
— — —
Bit
6 5 4
D6 D5 D4
D6 D5 D4
— — —
6 5 4
— — D4
— — R/W
— — ×
45
3 2 1
D3 D2 D�
D3 D2 D�
WR RDEN
3 2 1
D3 D2 D�
D3 D2 D�
WREN WR RDEN
3 2 1
D3 D2 D�
D3 D2 D�
WREN WR RDEN
3 2 1
D3 D2 D�
D3 D2 D�
WREN WR RDEN
3 2 1
D3 D2 D�
R/W R/W R/W
× × ×
"x" �nknown
��ne 22� 20��
0
D0
D0
RD
0
D0
D0
RD
0
D0
D0
RD
0
D0
D0
RD
0
D0
R/W
×