Datasheet

Section 22 USB Function Module (USB)
Rev. 2.00 Aug. 20, 2008 Page 831 of 1198
REJ09B0403-0200
Section 22 USB Function Module (USB)
The H8S/2472 Group incorporates a USB function module (USB).
22.1 Features
• The UDC (USB device controller) conforming to USB2.0 and transceiver process USB
protocol automatically.
Automatic processing of USB standard commands for endpoint 0 (some commands and
class/vendor commands require decoding and processing by firmware)
• Transfer speed: Supports full-speed (12 Mbps)
• Endpoint configuration:
Endpoint
Name
Abbreviation Transfer Type
Maximum
Packet Size
FIFO Buffer
Capacity (Byte)
DTC Transfer
Endpoint 0 EP0s Setup 8 8 
EP0i Control-in 8 8 
EP0o Control-out 8 8 
Endpoint 1 EP1 Bulk-out 64 128 Possible
Endpoint 2 EP2 Bulk-in 64 128 Possible
Endpoint 3 EP3 Interrupt-in 8 8 
Configuration1-Interface0-AlternateSetting0 EndPoint1
EndPoint2
EndPoint3
• Interrupt requests: Generates various interrupt signals necessary for USB
transmission/reception
• Power mode: Self-powered mode
Note: The EtherC operates only in high-speed mode