em78p210n ELAN Microelectronics Corp, em78p210n Datasheet - Page 20

• Manufacturer Part Number: em78p210n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P210N
8-Bit Microcontroller with OTP ROM
14 •
6.2.20 Bank 1-RC (Open-drain Control Register)
Bank 1-RC register is both readable and writable.
Bit 7 (OD7):
Bit 6 (OD6):
Bit 5 (OD5):
Bit 4 (OD4):
Bit 3 (OD3):
Bit 2 (OD2):
Bit 1 (OD1):
Bit 0 (OD0):
6.2.21 Bank 1-RD (Pull-high Control Register)
Bank 1-RD register is both readable and writable.
Bit 7 (/PH7):
Bit 6 (/PH6):
Bit 5 (/PH5):
Bit 4 (/PH4):
Bit 3 (/PH3):
Bit 2 (/PH2):
Bit 1 (/PH1):
Bit 0 (/PH0):
/OD7
Bit 7
Bit 7
/PH7
/OD6
Bit 6
Bit 6
/PH6
Control bit is used to enable the open-drain of the P57 pin.
0 = Enable open-drain output
1 = Disable open-drain output
Control bit used to enable the open-drain output of the P56 pin.
Control bit used to enable the open-drain output of the P55 pin.
Control bit used to enable the open-drain output of the P54 pin.
Control bit used to enable the open-drain output of the P53 pin.
Control bit used to enable the open-drain output of the P52 pin.
Control bit used to enable the open-drain output of the P51 pin.
Control bit used to enable the open-drain output of the P50 pin.
Control bit used to enable the pull-high function of the P67 pin.
Control bit used to enable the pull-high function of the P66 pin.
Control bit used to enable the pull-high function of the P65 pin.
Control bit used to enable the pull-high function of the P64 pin.
Control bit used to enable the pull-high function of the P53 pin.
Control bit used to enable the pull-high function of the P52 pin.
Control bit used to enable the pull-high function of the P51 pin.
Control bit used to enable the pull-high function of the P50 pin.
0 = Enable internal pull-high
1 = Disable internal pull-high
/OD3
/PH5
Bit 5
Bit 5
/OD2
/PH4
Bit 4
Bit 4
(This specification is subject to change without further notice)
/OD5
Bit 3
Bit 3
/PH3
Product Specification (V1.2) 04.22.2008
/OD4
/PH2
Bit 2
Bit 2
/OD1
/PH1
Bit 1
Bit 1
/OD0
Bit 0
Bit 0
/PH0