AN2136SC Cypress Semiconductor Corp, AN2136SC Datasheet - Page 206

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

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

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