Processor Local Bus Functional Model Toolkit User's Manual
Processor Local Bus Functional Model Toolkit User's Manual
Processor Local Bus Functional Model Toolkit User's Manual
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
7.9 Four-word Line Read Followed By Four-word Line Write Transfers<br />
Figure 16 shows the operation of a four-word line read followed immediately by a four-word line write<br />
on the PLB.<br />
Cycle<br />
SYS_plbClk<br />
Transfer Qualifiers<br />
Mn_request<br />
Mn_priority(0:1)<br />
Mn_busLock<br />
Mn_RNW<br />
Mn_BE(0:3)<br />
Mn_size(0:3)<br />
Mn_type(0:2)<br />
Mn_abort<br />
Mn_A<strong>Bus</strong>(0:31)<br />
PLB_PAValid<br />
Sl_addrAck<br />
Write Data <strong>Bus</strong><br />
Mn_wrD<strong>Bus</strong>(0:31)<br />
Sl_wrDAck<br />
Sl_wrComp<br />
Mn_wrBurst<br />
Read Data <strong>Bus</strong><br />
Sl_rdD<strong>Bus</strong>(0:31)<br />
Sl_rdWdAddr(0:3)<br />
Sl_rdDAck<br />
Sl_rdComp<br />
Mn_rdBurst<br />
0001 0001<br />
000 000<br />
A1 A2<br />
Figure 16. Four Word Line Read followed by Four Word Line Write<br />
set_device (path=/plb_complex/plb_master0,device_type=plb_master)<br />
mem_init(addr=00000000,data=00010203)<br />
mem_init(addr=00000004,data=04050607)<br />
mem_init(addr=00000008,data=08090a0b)<br />
mem_init(addr=0000000c,data=0c0d0e0f)<br />
mem_init(addr=00000010,data=10111213)<br />
mem_init(addr=00000014,data=14151617)<br />
mem_init(addr=00000018,data=18191a1b)<br />
0 1 2 3 4 5 6 7 8 9<br />
0000<br />
0000<br />
Next Read AValid Next Write AValid<br />
D0(A2) D1(A2) D2(A2) D3(A2)<br />
W0 W1 W2 W3<br />
0000 0001 0010 0011<br />
0000<br />
0000<br />
Version 4.9.2 PLB <strong>Bus</strong> Timing 67
Change language