GMS81508A Datasheet, PDF (59/91 Pages) Hynix Semiconductor – USERS MANUAL

HYUNDAI MicroElectronics

R5 PORT I/O DIRECTION REGISTER
R5DD
<00CB_H>
W
W
W
W
W
W
W
W
7
6
5
4
3
2
1
0
R5DD7 R5DD6 R5DD5 R5DD4 R5DD3 R5DD2 R5DD1 R5DD0

R5 PORT DATA REGISTER
Determines I/O of R5 port
0 : Input
1 : Output
R5
<00CA_H>
R/W R/W R/W R/W R/W R/W R/W R/W
7
6
5
4
3
2
1
0
R57 R56 R55 R54 R53 R52 R51 R50
Port R5 Output Data

PORT R5 MODE REGISTER
PMR5
<00D1_H>
W
W
7
6
5
4
3
2
1
0
-
-
BUZ ^WDTON -
-
-
-
R55 / BUZ Selection
0 : R55 ( Input / Output )
1 : BUZ ( Output )
R54 / WDTON Selection
0 : R54 ( Input / Output )
1 : WDTON ( Output )
3.7. R6 PORT
R6 Port consists of 4-bit Programmable I/O ports and 4-bit input only ports and this port can be
used as a analog input port for A/D conversion by program.
Register Name
R6 I/O Direction Register
R6 Port Data Register
A/D Converter Mode Register
Symbol
R6DD
R6
ADCM
R/W
W
R/W
W
Address
00CD_H
00CC_H
00E8_H
Initial Value
0000 ----
Not initialized
--00 0001
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