Datasheet

Section 14 Universal Serial Bus (USB)
Rev.7.00 Dec. 24, 2008 Page 474 of 698
REJ09B0074-0700
Bit Bit Name Initial Value R/W Description
0 EP0sRDFN 0 W EP0s Read Complete
0: Performs no operation. A NAK handshake is
returned in response to transmit/receive requests in
the data stage until 1 is written to this bit.
1: Writes 1 to this bit after reading data for EP0s
command FIFO. After receiving the setup command,
this trigger enables the next packet in the data stage
to be received by EP0i and EP0o. EP0s can always
be overwritten and receive data regardless of this
trigger.