SK-FR80-120PMC-USB Fujitsu, SK-FR80-120PMC-USB Datasheet - Page 61
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SK-FR80-120PMC-USB
Manufacturer Part Number
SK-FR80-120PMC-USB
Description
BOARD, EVAL, FOR MB91660 SERIES
Manufacturer
Fujitsu
Type
Evaluation Boardr
Datasheet
1.SK-FR80-120PMC-USB.pdf
(146 pages)
Specifications of SK-FR80-120PMC-USB
Kit Features
External FRAM Memory MB85RS256, USB A & USB A Connectors, USB To Serial Converter
Mcu Supported Families
MB91660
Silicon Manufacturer
Fujitsu
Core Architecture
FR80
Kit Contents
Board, USB A To Mini-B Cable
Features
USB Connector, 7-segment LED, Humidity Sensor
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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- Download datasheet (9Mb)
Each packet will be explained.
All packets begin with a SYNC field. This is an 8-bit field used to synchronize the input data and
local clock on the input circuit. The SYNC field is used only for synchronizing. The frame starting
packet contains an SOF (Start of Frame) field after the SYNC field.
Number field is for counting the number of frames.
5-bit CRC for detecting transmission errors.
The side that receives the data sends a handshake packet.
The packets shown in Figure 4.9-3 are combined to form a frame for transferring over the USB.
SOF is a type of PID (Packet ID), but used only for the frame starting packet. The Frame
The CRC (Cyclic Redundancy Check) field is used to detect transmission errors.
An EOP (End of Packet) is sent at the end of each packet.
In the token packet, the PID is followed by a 7-bit address and 4-bit endpoint number, plus a
In the data packet, the PID is followed by a 16-bit CRC for detecting transmission errors.
Figure 4.9-3 USB packet format
60
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