RPIXP2850BB Intel, RPIXP2850BB Datasheet - Page 124

• Manufacturer Part Number: RPIXP2850BB
• Manufacturer: Intel

Specifications of RPIXP2850BB

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Operating Supply Voltage (max): 1.575/2.7/3.465V
• Operating Supply Voltage (min): 1.235/2.3/3.135V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

IXP28XX Network Processor
PCI
6.5
Table 46.
124
PCI_ACK64_L
PCI_AD[0]
PCI_AD[1]
PCI_AD[10]
PCI_AD[11]
PCI_AD[12]
PCI_AD[13]
PCI_AD[14]
PCI_AD[15]
PCI_AD[16]
PCI_AD[17]
PCI_AD[18]
PCI_AD[19]
PCI_AD[2]
PCI_AD[20]
PCI_AD[21]
PCI_AD[22]
PCI_AD[23]
PCI_AD[24]
PCI_AD[25]
PCI_AD[26]
PCI_AD[27]
PCI_AD[28]
Signal
Note: It is typically not required to account for the package trace length for PCI interface signals.
Note: If the flight delay of the target PCB is not 180 ps/in then the ratio, (154/180), must be modified
Package Trace Lengths for PCI Signals
Table 46
The flight time on the package substrate is 154ps/in which differs from the flight delay of standard
FR4, typical 180ps/in. As a result the package routing lengths in
compensate for the difference in flight delay between the package and the PCB. For example
PCI_ACK64_L has a package length of 0.593 in, and the target PCB has a flight delay of 180ps/in.
In order to adjust the package length to match the PCB flight delay this length must be multiplied
by the ratio of 154/180 or the difference between the package and PCB flight delays. Therefore the
trace package routing length that must be accounted for on the PCB is 0.593*(154/180) or 0.507 in.
accordingly, i.e., the denominator would be changed to reflect the actual flight delay.
Package Trace Lengths for PCI Signals (Sheet 1 of 2)
15.052
6.118
7.934
11.996
16.187
2.379
10.843
13.881
13.628
8.055
11.044
3.802
7.593
14.995
12.79
10.251
10.299
5.299
1.845
17.686
7.434
2.48
12.666
Metric
Units
(mm)
provides package trace lengths for PCI signals.
English
0.593
0.241
0.312
0.472
0.637
0.094
0.427
0.546
0.537
0.317
0.435
0.150
0.299
0.590
0.504
0.404
0.405
0.209
0.073
0.696
0.293
0.098
0.499
Units
(in)
PCI_AD[38]
PCI_AD[39]
PCI_AD[4]
PCI_AD[40]
PCI_AD[41]
PCI_AD[42]
PCI_AD[43]
PCI_AD[44]
PCI_AD[45]
PCI_AD[46]
PCI_AD[47]
PCI_AD[48]
PCI_AD[49]
PCI_AD[5]
PCI_AD[50]
PCI_AD[51]
PCI_AD[52]
PCI_AD[53]
PCI_AD[54]
PCI_AD[55]
PCI_AD[56]
PCI_AD[57]
PCI_AD[58]
Signal
8.43
15.183
4.626
5.386
14.329
9.768
10.39
4.96
4.537
2.088
12.445
5.838
11.942
9.05
10.852
10.741
1.893
11.913
5.843
7.053
7.908
10.645
2.518
Metric
Units
(mm)
English
0.332
0.598
0.182
0.212
0.564
0.385
0.409
0.195
0.179
0.082
0.490
0.230
0.470
0.356
0.427
0.423
0.075
0.469
0.230
0.278
0.311
0.419
0.099
Units
(in)
PCI_CBE_L[1]
PCI_CBE_L[2]
PCI_CBE_L[3]
PCI_CBE_L[4]
PCI_CBE_L[5]
PCI_CBE_L[6]
PCI_CBE_L[7]
PCI_CLK
PCI_FRAME_L
PCI_GNT_L[0]
PCI_GNT_L[1]
PCI_IDSEL
PCI_INTA_L
PCI_INTB_L
PCI_M66EN
PCI_PAR
PCI_PAR64
PCI_PERR_L
PCI_REQ_L[0]
PCI_REQ_L[1]
PCI_REQ64_L
PCI_DEVSEL_L
PCI_IRDY_L
Table 46
Signal
Hardware Design Guide
must be adjusted to
3.597
1.571
9.587
13.866
3.349
10.543
6.818
5.22
8.571
4.673
14.405
13.908
11.147
12.348
7.397
5.826
1.72
13.373
5.838
2.9
3.644
9.697
1.72
Metric
Units
(mm)
English
0.142
0.062
0.377
0.546
0.132
0.415
0.268
0.206
0.337
0.184
0.567
0.548
0.439
0.486
0.291
0.229
0.068
0.526
0.230
0.114
0.143
0.382
0.068
Units
(in)