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R
EM6521
Copyright © 2005, EM Microelectronic-Marin SA
27
www.emmicroelectronic.com
Table 6.7.6 Register RegSPData
Bit
Name
Reset
R/W
Description
3
SerPData[3]
0
R* /W
Parallel output data
2
SerPData[2]
0
R* /W
Parallel output data
1
SerPData[1]
0
R* /W
Parallel output data
0
SerPData[0]
0
R* /W
Parallel output data
R* : The input terminal value is read, not the register
Table 6.7.7 Option Register OPTNoPdPS
Bit
Name
R/W
Description
3
NoPdPS[3]
0
R/W
No pull-down on PSP[3]
2
NoPdPS[2]
0
R/W
No pull-down on PSP[2]
1
NoPdPS[1]
0
R/W
No pull-down on PSP[1]
0
NoPdPS[0]
0
R/W
No pull-down on PSP[0]
Default "0" is: Pull-down on
Table 6.7.8 Option Register OPTNchOpDPS
Bit
Name
R/W
Description
3
NchOpDPS[3]
0
R/W
Nch. Open Drain on PSP[3]
2
NchOpDPS[2]
0
R/W
Nch. Open Drain on PSP[2]
1
NchOpDPS[1]
0
R/W
Nch. Open Drain on PSP[1]
0
NchOpDPS[0]
0
R/W
Nch. Open Drain on PSP[0]
Default "0" is: CMOS output