DM9010BI datasheet(49/60 Pages) DAVICOM

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DM9010BI

Industrial-temperature Single Chip Ethernet Controller with General Processor Interface

Preliminary

Version: DM9010BI--DS-P01

January 12, 2010

10.3.5 Processor I/O Write Timing

Symbol

Parameter

Min.

Typ.

Max.

Unit

System Address(SA) valid to IOW# valid

IOW# width

System Data(SD) setup time

System Data (SD) hold time

IOW# invalid to System Address(SA) invalid

IOW# Invalid to next IOW#/IOR# valid

When write DM9010BI INDEX port

clk*

IOW# Invalid to next IOW#/IOR# valid

When write DM9010BI DATA port

clk*

T2+T6

IOW# valid to next IOW#/IOR# valid

When write DM9010BI memory

clk*

System Address(SA) valid to IO16, IO32 valid

System Address(SA) invalid to IO16, IO32 invalid

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

AEN,SA

→

←

IOW

→

∫∫

←

→

←

→

←

IO16,IO32

←

→

Note1.2

,CMD

DM9010BI Datasheet(PDF) 49 Page - Davicom Semiconductor, Inc.

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