EM78P417N/418N/419N
8-Bit Microprocessor with OTP ROM
Bit 6 (/PD6): Control bit is used to enable the pull-down of the P66 pin
Bit 5 (/PD5): Control bit is used to enable the pull-down of the P65 pin
Bit 4 (/PD4): Control bit is used to enable the pull-down of the P64 pin
Bit 3 (/PD3): Control bit is used to enable the pull-down of the P63 pin
Bit 2 (/PD2): Control bit is used to enable the pull-down of the P62 pin
Bit 1 (/PD1): Control bit is used to enable the pull-down of the P61 pin
Bit 0 (/PD0): Control bit is used to enable the pull-down of the P60 pin.
6.2.8 IOCC0 (Open-Drain Control Register)
7
6
5
4
3
2
1
0
/OD7
/OD6
/OD5
/OD4
/OD3
/OD2
/OD1
/OD0
IOCC0 register is both readable and writable.
Bit 7 (OD7): Control bit is used to enable the open-drain of the P57 pin.
0 = Enable open-drain output
1 = Disable open-drain output
Bit 6 (OD6): Control bit is used to enable the open-drain of the P56 pin.
Bit 5 (OD5): Control bit is used to enable the open-drain of the P55 pin.
Bit 4 (OD4): Control bit is used to enable the open-drain of the P54 pin.
Bit 3 (OD3): Control bit is used to enable the open-drain of the P53 pin.
Bit 2 (OD2): Control bit is used to enable the open-drain of the P52 pin.
Bit 1 (OD1): Control bit is used to enable the open-drain of the P51 pin.
Bit 0 (OD0): Control bit is used to enable the open-drain of the P50 pin.
6.2.9 IOCD0 (Pull-high Control Register)
7
6
5
4
3
2
1
0
/PH7
/PH6
/PH5
/PH4
/PH3
/PH2
/PH1
/PH0
IOCD0 register is both readable and writable.
Bit 7 (/PH7): Control bit is used to enable the pull-high of the P67 pin.
0 = Enable internal pull-high;
1 = Disable internal pull-high.
Bit 6 (/PH6): Control bit is used to enable the pull-high of the P66 pin.
Bit 5 (/PH5): Control bit is used to enable the pull-high of the P65 pin.
Bit 4 (/PH4): Control bit is used to enable the pull-high of the P64 pin.
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Product Specification (V1.0) 06.23.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
