HYUNDAI MicroElectronics
GMS81C2012/GMS81C2020
6. PORT STRUCTURES
R41~R43, R50~R52, R57
R53/SCLK
VDD
Pull-up
Selection
N-MOS
Open Drain Select
Tr.
VDD
Pull-up
Mask
Option
VDD
SCLK Output
Tr.
M UX
Data Reg.
Mask
Option
VDD
Data Reg.
Pin
Dir.
Reg.
Direction
Reg.
Pin
VSS
VSS
M UX
Rd
Rd
R00/INT0, R01/INT1, R02/EC0
SCLK Input
Selection
VDD
Data Reg.
R54/SIN
Mask
Option
Pin
Dir.
Reg.
Selection
VDD
Pull-up
Tr.
N-MOS
Open Drain Select
Rd
Mask
Option
Vdisp
VDD
Data Reg.
EX) INT0
Alternate Function
Direction
Reg.
Pin
R40/T0O
VSS
Rd
VDD
Pull-up
Selection
Tr.
Mask
Option
VDD
Secondary
Function
SIN Input
M U X
Pin
Data Reg.
Direction
Reg.
VSS
M U X
Rd
MAR. 2000 Ver 1.00
15