SH7670 Datasheet, PDF (801/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 17 USB 2.0 Host/Function Module (USB)
Figure 17.4 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
(CRC error, etc)
Data packet
NAK handshake
(3) Data reception: PING token reception
USB bus
PING packet
NAK handshake
NRDY interrupt
Figure 17.4 Timing at which NRDY Interrupt is Generated when Function Controller
Function is Selected
Rev. 1.00 Nov. 14, 2007 Page 775 of 1262
REJ09B0437-0100