參數(shù)資料
型號(hào): DM9000A
廠商: Electronic Theatre Controls, Inc.
英文描述: Ethernet Controller with General Processor Interface
中文描述: 以太網(wǎng)控制器與通用處理器接口
文件頁(yè)數(shù): 47/56頁(yè)
文件大?。?/td> 1744K
代理商: DM9000A
DM9000A
Ethernet Controller with General Processor Interface
Preliminary datasheet
Version: DM9000A-DS-P03
Apr. 21, 2005
47
10.3.4 Processor I/O Write Timing
T1
T4
CS# , CMD
T6
IOW#
T2
SD
T3
T8
T7
IO16
T5
Symbol
T
1
T
2
T
3
T
4
T
5
T
6
Parameter
Min.
0
10
10
3
0
1
Typ.
Max.
Unit
ns
ns
ns
ns
ns
clk*
CS#,CMD valid to IOW# valid
IOW# Width
System Data(SD) Setup Time
System Data(SD) Hold Time
IOW# Invalid to CS#,CMD Invalid
IOW# Invalid to next IOW#/IOR# valid
When write DM9000A INDEX port
IOW# Invalid to next IOW#/IOR# valid
When write DM9000A DATA port
IOW# Invalid to next IOW#/IOR# valid
When write DM9000A memory
CS#,CMD Valid to IO16 valid
CS#,CMD Invalid to IO16 Invalid
T
6
2
clk*
T
2
+T
6
1
clk*
T
7
T
8
3
3
ns
ns
Note
1. The IO16 is valid when the SD bus width is 16-bit
and system address is DATA port (i.e. CMD is high)
and the value of INDEX port is memory data
(the default clk period is 20ns)
register index (ex. F0H, F2H, F6H or F8H
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