AN2131QC Cypress Semiconductor Corp, AN2131QC Datasheet - Page 195

• 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

Figure 12-1 illustrates the register description format used in this chapter.
Page 12-2
Register Name
Other Conventions
USB
ADDR
VAL
FRAME Is a frame count.
PTR
R, W access
Default val
bitname
•
•
•
•
•
b7
The top line shows the register name, functional description, and address in the
EZ-USB memory.
The second line shows the bit position in the register.
The third line shows the name of each bit in the register.
The fourth line shows 8051 accessibility: R(ead), W(rite), or R/W.
The fifth line shows the default value. These values apply after a Power-On-Reset
(POR).
Indicates a global (not endpoint-specific) USB function.
Is an address.
Means “valid.”
Is an address pointer.
R, W access
Default val
bitname
b6
R, W access
Default val
bitname
b5
Figure 12-1. Register Description Format
Chapter 12. EZ-USB Registers
R, W access
Register Function
Default val
bitname
b4
R, W access
Default val
bitname
b3
R, W access
Default val
bitname
b2
R, W access
Default val
bitname
b1
EZ-USB TRM v1.9
R, W access
Default val
Address
bitname
b0