1 / 9

CRKit R4 Architecture rev 0.23

CRKit R4 Architecture rev 0.23. WINLAB – Rutgers University Date : August 25, 2011. R4 - top level. R4 - app2host. if (IP == 1) then Enable IP processing (append dIP, sIP & UDP) Forward dMAC/Ethertype (Note, sMAC provided in RMAP) else Disable IP Processing

abedi
Télécharger la présentation

CRKit R4 Architecture rev 0.23

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CRKit R4 Architecturerev 0.23 WINLAB – Rutgers University Date : August 25, 2011

  2. R4 - top level

  3. R4 - app2host if (IP == 1) then Enable IP processing (append dIP, sIP & UDP) Forward dMAC/Ethertype (Note, sMAC provided in RMAP) else Disable IP Processing Forward dMAC/Ethertype (Note, sMAC provided in RMAP) endif Lookup using PortID dMAC/Ethertype from IP Processor VRT Receiver Lookup using PortID dMAC/Ethertype appended to IP/VITA data if (V == 1) then Enable VITA formatting else Disable VITA formatting endif

  4. R4 - app2host MMU drdy - data ready dreq - data request Use CMD_CNT as ACK to MEM_CTL/PCORE to indicate completion of data removal from MEM. CMD FORMAT PortID: 0-3 - APP0-3 ports 4-15 – PCORE ports size : data size in bytes ptr : pointer to data in memory To prefetch configuration settings at VITA emitter and IP Processor. Next prefetch can commence during current payload transfer

  5. R4 - host2app PCORE CMD FORMAT Ethertype = 0x0800 - IPv4 0x0806 - ARP If (V==1) then VITA context packet Else non-VITA packet use ethertype field for further parsing Endif; Use CMD_CNT as ACK to MEM_CTL to indicate completion of PCORE data removal from MEM. • Forward ethernet payload if : • incoming MAC = dMAC • incoming MAC = Broadcast • Append Ethertype field (16-bit) to ethernet payload if (ethertype == IPv4 & Incoming IP == dIP & UDP = 1000) then forward UDP payload to VITA Receiver else forward packet to PCORE

  6. R4 - PCORE PCORE – RMAP RD/WR IP Host -> PCORE (UDP-1001) RTYPE: 0x2000 – RMAP READ 0x2001 – RMAP WRITE RADDR: Register address RDATA: Register data Address Decoding IP PCORE -> Host (UDP-1001)

  7. R4 - APP

  8. R4 – Memory Map Upper 4 MSBs : 0x0-0x1 : PCORE 0x2 : CRKIT Others : Unused 0x0 : CMN 0x1 : ETH 0x2 : PKT 0x4-0xB : APP 0xC : DAC IF 0xD : ADC IF INT SPI, LED DCM/CLOCK CE

  9. R4 – Interrupt Architecture CMN INT ETH INT PKT INT uP INTC IPIF APP INT SYS INT PCORE CR

More Related