cx28500 Mindspeed Technologies, cx28500 Datasheet - Page 192

• Manufacturer Part Number: cx28500
• Description: Cx28500 Multichannel Synchronous Communications Controller
• Manufacturer: Mindspeed Technologies

Table A-6.
Table A-7.
28500-DSH-002-C
Spare Time (ms)
Spare Time (cycles)
In Spare Time Amnt Filled
In Spare Time Amnt Emptied
Max Total in SLP Buffer
Max Total in SLP Buffer
MAXDATA
MAXDATA
Max L
Max L
Max L
Max L
Utilization
Utilization
Amnt Data Filled in L
Amnt Data Emptied in L
Number of Ch
Mem Available (KB)
Packet Length (bits)
Ext. Ch Rate (Kbps)
PCI Freq. (MHz)
Read Latency
Write Latency
PCI Bit Mode
ch
pci
ch
pci
(ms)
(ms)
(ms)
(ms)
Utilization
Example One (2 of 2)
Example Two (1 of 3)
pci
Configuration
Configuration
66 MHz PCI
66 MHz PCI
pci
Mindspeed Proprietary and Confidential
Mindspeed Technologies
TOTAL
TOTAL
TOTAL
PBIT
fpci
RX
RX
RX
RX
RX
TX
RX
TX
TX
TX
TX
RX
TX
TX
M
N
R
w
P
r
Not Including Spare Time
64-Bit PCI
64-Bit PCI
168 x 1536K Channels
168 x 1536K Channels
0.326
28466
0.431
0.508
0.076
0.554
0.076
0.170
0.156
1592
1526
1536
677
620
352
352
120
110
168
352
64
66
64
2
0
Suggested
CX28500 PCI Bus Latency and Utilization Analysis
32-Bit PCI
32-Bit PCI
0.457
44-Byte Messages
26287
44-Byte Messages
0.109
0.398
0.508
0.554
0.109
0.238
0.218
1592
1526
1536
625
573
352
352
171
157
168
352
64
66
32
2
0
®
64-Bit PCI
64-Bit PCI
6 x 44.21M Channels
6 x 44.21M Channels
0.335
31783
21743
19931
43723
41900
44210
0.482
0.484
0.003
0.528
0.003
0.175
0.160
352
352
118
108
352
64
66
64
6
2
0
32-Bit PCI
32-Bit PCI
0.469
31711
21694
19886
43723
41900
44210
0.480
0.484
0.004
0.528
0.004
0.245
0.224
352
352
168
153
352
64
66
32
6
2
0
64-Bit PCI
64-Bit PCI
12312378
186.551
186.607
248.810
168 x 4K Channels
0.002
168 x 4K Channels
12-Byte Messages
12-Byte Messages
0.056
0.056
0.001
0.001
1592
1393
796
597
168
96
96
64
96
66
64
0
0
4
2
0
32-Bit PCI
32-Bit PCI
12311540
186.538
186.607
248.810
0.003
0.069
0.069
0.001
0.001
1592
1393
796
597
168
96
96
96
64
66
32
0
0
4
2
0
177