參數(shù)資料
型號(hào)： AM79C984AKCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： Circular Connector; No. of Contacts:6; Series:MS27474; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:8-35 RoHS Compliant: No
中文描述： DATACOM, ETHERNET TRANSCEIVER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 22/44頁(yè)
文件大?。?/td> 222K
代理商： AM79C984AKCW
P R E L I M I N A R Y
22
Am79C984A
Command/Response Timing
Figure 6 shows the command/response timing. At the
end of a GET command, the eIMR device waits two
SCLK cycles and then transmits the response on SO.
.
Figure 6. Control Get Command/Response
Control Commands
The following section details the operation of each con-
trol commands available in the eIMR device. In all
cases, the individual bits in each command are shown
with the most-significant bit (bit 7) on the left and the
least-significant bit (bit 0) on the right. Table 4 and Table
5 show a summary of default states and a summary of
control commands, respectively.
Note:
Data is transmitted and received on the serial
data lines least-significant bit first and most-significant
bit last.
ST D0 D1 D2 D3 D4 D5 D6 D7
SCLK
SI
ST D0 D1 D2 D3 D4 D5 D6 D7
SO
20650A-11
20650B-11
Table 4. Summary of Default States after Reset
eIMR Programmable Option—S Off
AUI Partitioning Algorithm
TP Partitioning Algorithm
AUI/TP Port
Link Test
Link Pulse
Automatic Receiver Polarity
Reversal
Extended Distance Mode
Blink Rate
Software Override of LEDs
Normal
Normal
Enabled
Enabled
Enabled
State of SI at reset
Disabled
Off
Disabled
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