Holtek HT66F20 Manual page 89

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
PBC Register
• HT66F40/HT66F50/HT66F60
Bit 7
Name D�
R/W R/W
�
POR
PCC Register
• HT66F30/HT66F40/HT66F50/HT66F60
Bit 7
Name D�
R/W R/W
POR �
PDC Register
• HT66F40/HT66F50/HT66F60
Bit 7
Name D�
R/W R/W
POR �
PEC Register
• HT66F40/HT66F50/HT66F60
Bit 7
Name D�
R/W R/W
POR �
PFC Register
• HT66F60
Bit 7
Name D�
R/W R/W
POR �
Bit 7~0 I/O Port bit 7~bit 0 Input/Output Control
0: Output
1: Input
Rev. 2.50
6 5 4
D6 D5 D4
R/W R/W R/W
� � �
6 5 4
D6 D5 D4
R/W R/W R/W
� � �
6 5 4
D6 D5 D4
R/W R/W R/W
� � �
6 5 4
D6 D5 D4
R/W R/W R/W
� � �
6 5 4
D6 D5 D4
R/W R/W R/W
� � �
89
3 2 1
D3 D2 D�
R/W R/W R/W
� � �
3 2 1
D3 D2 D�
R/W R/W R/W
� � �
3 2 1
D3 D2 D�
R/W R/W R/W
� � �
3 2 1
D3 D2 D�
R/W R/W R/W
� � �
3 2 1
D3 D2 D�
R/W R/W R/W
� � �
��ne 22� 20��
0
D0
R/W
�
0
D0
R/W
�
0
D0
R/W
�
0
D0
R/W
�
0
D0
R/W
�