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Rev. 1.21
58
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Rev. 1.21
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HT66F488/HT66F489
A/D Flash MCU with EEPROM
HT66F488/HT66F489
A/D Flash MCU with EEPROM
Bit 1~0
IOHS41~IOHS40
: PA4 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
IOHR2 Register
Bit
7
6
5
4
3
2
1
0
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IOHSB1
IOHSB�
IOHSA1
IOHSA�
IOHS�1
IOHS��
IOHS81
IOHS8�
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
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Bit 7~6
IOHSB1~IOHSB0
: PC4~PC7 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
Bit 5~4
IOHSA1~IOHSA0
: PC0~PC3 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
Bit 3~2
IOHS91~IOHS90
: PB4~PB7 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
Bit 1~0
IOHS81~IOHS80
: PB0~PB3 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
IOHR3 Register
Bit
7
6
5
4
3
2
1
0
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—
—
—
—
IOHSD1 IOHSD� IOHSC1 IOHSC�
R/W
—
—
—
—
R/W
R/W
R/W
R/W
POR
—
—
—
—
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Bit 7~4
Unimplemented, read as “0”
Bit 3~2
IOHSD1~IOHSD0
: PD4~PD5 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output
Bit 1~0
IOHSC1~IOHSC0
: PD0~PD3 source current output selection bit
00: Full source current output
01: 10/22 full source current output
10: 7/22 full source current output
11: 4/22 full source current output