AN2136SC Cypress Semiconductor Corp, AN2136SC Datasheet - Page 206

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AN2136SC

Manufacturer Part Number
AN2136SC
Description
IC MCU 8051 8K RAM 24MHZ 44QFP
Manufacturer
Cypress Semiconductor Corp
Series
EZ-USB®r
Datasheet

Specifications of AN2136SC

Applications
USB Microcontroller
Core Processor
8051
Program Memory Type
ROMless
Controller Series
AN213x
Ram Size
8K x 8
Interface
I²C, USB
Number Of I /o
8
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
428-1309

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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
OEA
OEB
OEC
OEA7
OEB7
OEC7
R/W
R/W
R/W
b7
b7
b7
x
x
x
OEA6
OEC6
OEB6
R/W
R/W
R/W
b6
b6
b6
x
x
x
OEA5
OEB5
OEC5
R/W
R/W
R/W
b5
b5
b5
x
x
x
Figure 12-9. Output Enable Registers
Port A Output Enable
Port C Output Enable
Port B Output Enable
Chapter 12. EZ-USB Registers
OEA4
OEB4
OEC4
R/W
R/W
R/W
b4
b4
b4
x
x
x
OEA3
OEC3
OEB3
R/W
R/W
R/W
b3
b3
b3
x
x
x
OEA2
OEB2
OEC2
R/W
R/W
R/W
b2
b2
b2
x
x
x
OEA1
OEC1
OEB1
R/W
R/W
R/W
b1
b1
b1
x
x
x
Page 12-13
OEA0
OEB0
OEC0
R/W
R/W
R/W
b0
b0
b0
7F9C
x
7F9D
x
x
7F9E

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