Section 18 Universal Serial Bus Interface (USB)
Rev. 3.00 Jan 25, 2006 page 613 of 872
REJ09B0286-0300
USB Host
USB Function Core
Slave CPU
Core Interface
Notes: 1. When an EP5TF interrupt is specified as a USBIB or USBIC interrupt according to the INTSELR0 setting, the corresponding interrupt
occurs. In this case, if a USBIB or USBIC interrupt occurs, interrupt source determination process is not required. (Note that TFFR0 must
be accessed to clear the flags.)
2. When an EP5TS interrupt is specified as a USBIB or USBIC interrupt according to the INTSELR0 setting, the corresponding interrupt
occurs. In this case, if a USBIB or USBIC interrupt occurs, interrupt source determination process is not required. (Note that TSFR0 must
be accessed to clear the flags.)
Receive an OUT
token packet
Receive a NAK
handshake packet
Send NAK to the host CPU
Send NAK to the slave CPU
Request to rewind the
RFU pointer
Request an USBID
interrupt (EP5TF)
*
1
Request RFU transmission
A RAM-FIFO full error
occurs
Initiate the USBID interrupt
processing
Read USBIFR0 and check
if a TF interrupt occurs
or not
Read TFFR0 and check
if an EP5TF interrupt occurs
or not
Read data and modify
the RFU pointer
Clear the EP5TF bit of
TFFR0 to 0
Complete the USBID
interrupt processing
Send an OUT
token packet
Send an OUT data
packet (64 bytes)
Receive an OUT data
packet (64 bytes)
Receive an ACK
handshake packet
Re-transmission
Send an OUT
token packet
Send an OUT data
packet (64bytes)
Receive an OUT
token packet
Receive an OUT data
packet (64 bytes)
Send ACK to the host CPU
Send ACK to the slave CPU
Write data to the EP5
receive buffer
A RAM-FIFO full error
occurs
Rewind the RFU pointer
and send ACK
Write data to the EP5
receive buffer
Request RFU transmission
Request to modify the RFU
pointer
Request an USBID interrupt
(EP5TS)
*
2
Initiate the USBID
interrupt processing
The following procedure is the same
as that when the initial FIFO is empty.
Modify the RFU pointer
and send ACK
Write data to RAM-FIFO
and send ACK
Figure 18.9 Operation on Receiving an OUT Token (EP5-OUT: Initial FIFO Is Full)
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...