AN2131QC Cypress Semiconductor Corp, AN2131QC Datasheet - Page 47

• Manufacturer Part Number: AN2131QC
• Description: IC MCU 8051 8K RAM 24MHZ 80BQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB®r

Specifications of AN2131QC

• 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: 24
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1307

The EZ-USB chip provides additional enhancements outside the 8051. These include:
The 8051 communicates with the EZ-USB core through a set of memory mapped regis-
ters. These registers are grouped as follows:
These registers and their functions are described throughout this manual. A full descrip-
tion of every register and bit appears in Chapter 12, “EZ-USB Registers.”
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2.3
2.4
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Fast external transfers (Autopointer, Fast Transfer Mode)
Vectored USB interrupts (Autovector)
Separate buffers for SETUP and DATA portions of a CONTROL transfer.
Breakpoint Facility.
Endpoint buffers and FIFOs
8051 control
IO ports
Fast Transfer
I
Interrupts
USB Functions
EZ-USB Enhancements
EZ-USB Register Interface
2
C Controller
Chapter 2. EZ-USB CPU
EZ-USB TRM v1.9