SH7263 Datasheet, PDF (1348/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 25 USB 2.0 Host/Function Module (USB)
Figure 25.4 shows the timing at which an NRDY interrupt is generated when the function
controller function is selected.
(1) Data transmission
USB bus
IN token packet
NAK handshake
NRDY interrupt
(2) Data reception: OUT token reception
USB bus
OUT token packet
NRDY interrupt
Data packet
NAK handshake
(CRC error, etc)
(3) Data reception: PING token reception
USB bus
PING packet
NAK handshake
NRDY interrupt
Figure 25.4 Timing at which NRDY Interrupt is Generated when Function Controller
Function is Selected
Rev. 2.00 Mar. 14, 2008 Page 1314 of 1824
REJ09B0290-0200