DM9010BI DAVICOM [Davicom Semiconductor, Inc.], DM9010BI Datasheet - Page 48
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DM9010BI
Manufacturer Part Number
DM9010BI
Description
Industrial-temperature 10/100 Mbps Single Chip Ethernet Controller With General Processor Interface
Manufacturer
DAVICOM [Davicom Semiconductor, Inc.]
Datasheet
1.DM9010BI.pdf
(60 pages)
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10.3.4 Processor I/O Read Timing
*Note:(The default clk period is 20ns)
1. The IO16 is valid when the SD bus width is 16-bit or
Preliminary
Version: DM9010BI--DS-P01
January 12, 2010
Symbol
T2+T
T
32-bit, and the system address is DATA port (i.e.
CMD is high) and the value of INDEX port is
memory data register index.(ex. F0H, F2H, F6H or
F8H)
2
T
T
T
T
T
T
T
T
+T
1
2
3
4
5
6
7
8
6
6
System Address(SA) valid to IOR# valid
IOR# width
IOR# valid to System Data(SD) valid
IOR# invalid to System Data(SD) bus invalid
IOR# invalid to System Address(SA) invalid
IOR# invalid to next IOR#/IOW# valid
When read DM9010BI register
IOR# valid to next IOR#/IOW# valid
When read DM9010BI memory with F0h register
IOR# valid to next IOR#/IOW# valid
When read DM9010BI memory with F2h register
System Address(SA) valid to IO16,IO32 valid
System Address(SA) invalid to IO16, IO32 invalid
Parameter
Industrial-temperature Single Chip Ethernet Controller with General Processor Interface
2. The IO32 is valid when the SD bus width is 32-bit,
register index(ex. F0H, F2H, F6H or F8H)
the system address is DATA port (i.e. CMD is high)
and the value of INDEX port is memory data
Min.
10
0
0
2
4
1
Typ.
Max.
3
3
3
3
DM9010BI
Unit
clk*
clk*
clk*
ns
ns
ns
ns
ns
ns
ns
48
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