PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 526

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

Data Sheet
The start-of-frame-done enable feature (SOFDE=1) is useful for USB memory read
accesses when the number of data bytes to be transferred from CPU to USB is not
predictable (see figure 22-11). The CPU can write data as desired to USB memory until
a SOF occures (every 1 ms). The automatic setting of bit SOF causes bit EOD to be set
(at
read operation has been finished (bit SOD set at
USB memory to the CPU which can start again writing data into USB memory.
Figure 22-11 Single Buffer Mode : USB Read Access with
MaxLen
1
). This indicates the CPU that no CPU action on this buffer is required until a USB
in USB Buffer
Data Bytes
Number of
USB read accesses
Start-of-Frame-Done Enabled
and EOD
SOF (n)
set
1
SOD
set
2
CPU write accesses
526
Frame n
2
). Setting of SOD indicates an empty
SOF (n+1)
and EOD
set
Frame n+1
SOD
set
USB Module
PSB 21473
MCT03404
2003-03-31
INCA-D
Time