OEA
Port A Output Enable
7F9C
b7
b6
b5
b4
b3
b2
b1
b0
OEA7
OEA6
OEA5
OEA4
OEA3
OEA2
OEA1
OEA0
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
OEB
Port B Output Enable
7F9D
b7
b6
b5
b4
b3
b2
b1
b0
OEB7
OEB6
OEB5
OEB4
OEB3
OEB2
OEB1
OEB0
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
OEC
Port C Output Enable
7F9E
b7
b6
b5
b4
b3
b2
b1
b0
OEC7
OEC6
OEC5
OEC4
OEC3
OEC2
OEC1
OEC0
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
R/W
x
Figure 12-9. Output Enable Registers
The OE registers control the output enables on the tri-state drivers connected to the port
pins. When these bits are “1,” the port is an output, unless the corresponding PORTnCFG
bit is set to a “1.”
EZ-USB TRM v1.9
Chapter 12. EZ-USB Registers
Page 12-13
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