DM9010
Single Chip Ethernet Controller with General Processor Interface
1. The IO16 is valid when the SD bus width is 16-bit or
2. The IO32 is valid when the SD bus width is 32-bit,
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）
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）
10.3.4 Processor I/O Write Timing
T5
T1
←
→
→
←
,CMD
AEN,SA
T6
←
→
T2
∫∫
T4
IOW
SD
→
→
←
←
T3
←
→
IO16,IO32
Note1.2
T8
→ ←
T7
→ ←
Symbol
T1
Parameter
System Aaddress(SA) valid to IOW# valid
IOW# width
Min.
0
10
3
Typ. Max.
Unit
ns
ns
T2
T3
System Data(SD) setup time
ns
T4
System Data (SD) hold time
3
ns
T5
T6
IOW# invalid to System Address(SA) invalid
IOW# Invalid to next IOW#/IOR# valid
When write DM9010 INDEX port
IOW# Invalid to next IOW#/IOR# valid
When write DM9010 DATA port
IOW# Invalid to next IOW#/IOR# valid
When write DM9010 memory
0
1
ns
clk*
T6
2
1
clk*
clk*
T2+T6
T7
T8
System Address(SA) valid to IO16, IO32 valid
System Address(SA) invalid to IO16, IO32 invalid
3
3
ns
ns
Note：(the default clk period is 20ns)
1. The IO16 is valid when the SD bus width is 16-bit or
32-bit and 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. The IO32 is valid when the SD bus width is 32-bit
and 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)
Preliminary
51
Version: DM9010-17--DS-P04
Jan. 18, 2006
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
