參數(shù)資料
型號: 21145
廠商: Intel Corp.
英文描述: Phoneline/Ethernet LAN Controller(電話線/以太網(wǎng)LAN控制器)
中文描述: 電話線/以太網(wǎng)控制器(電話線/以太網(wǎng)局域網(wǎng)控制器)
文件頁數(shù): 39/50頁
文件大?。?/td> 624K
代理商: 21145
21145
Preliminary
Datasheet
33
3.11
Expansion ROM and Serial ROM Port DC Specification
Table 30
lists the DC specifications for the expansion ROM and serial ROM ports. These
specifications apply in any mode in which the ports are used.
3.12
Expansion ROM Port Timing
This section describes the expansion ROM port timing.
3.12.1
Expansion ROM Read Timing
Figure 15
shows the expansion ROM read timing characteristics, and
Table 31
lists the expansion
ROM read timing limits.
Table 30. Expansion ROM and Serial ROM Port DC Specifications
Symbol
Definition
Condition
Minimum
Maximum
Unit
V
oh
Output high voltage
I
oh
= –4 mA
2.4
V
V
ol
Output low voltage
I
ol
= 4 mA
0.4
V
V
ih
Input high voltage
2.0
V
V
il
Input low voltage
0.8
V
I
oz
1
Maximum tristate output
leakage current
V
out
= vdd or vss
–10
10
μ
A
NOTE:
1. For sr_do and br_ce_l, the maximum value is 1.0
μ
A.
Figure 15. Expansion ROM Read Timing Diagram
A6457-01
Tads
Aoe=0, we=1
DaValid
Address<1>
Address<0>
Address<16>
Address<17>
Address=<15:8>
Tadh
Tads
Tadh
Telqx
Telqv
Tehqz
Tavav
Toh
Tavqv
br_ad<7:0>
br_a<1>
br_a<0>
br_ce_l
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