參數(shù)資料
型號(hào): AM79C985JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: enhanced Integrated Multiport Repeater Plus (eIMR+⑩)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數(shù): 33/48頁
文件大?。?/td> 260K
代理商: AM79C985JC
Am79C985
33
P R E L I M I N A R Y
Figure 13.
eIMR+ Internal Arbitration Mode Connection
Figure 14.
IMR+ Mode External Arbitration
V
DD
V
DD
V
DD
~1 k
1 k
~1 k
D
Q
Q
P C
D
Q
Q
P C
RST
74LS74
20 MHz
OSC
CLK
D
J
A
C
CLK
D
J
A
C
(
Note: In a multiple eIMR+ system, the reset
signal must be synchronized to CLK.)
CLK
D
J
A
C
eIMR+
SELI_0
SELI_1
RST
SELO
eIMR+
SELI_0
SELI_1
RST
SELO
eIMR+
SELI_0
SELI_1
RST
SELO
20651B-18
SELI_0
SELI_1
DAT JAM ACK COL
SELO
SELI_0
SELI_1
DAT JAM ACK COL
SELO
COL
ACK
SEL1 SEL2 SEL3
Arbiter
GCOL
eIMR+
eIMR+
eIMR+
1 k
SELI_0
SELI_1
DAT JAM ACK COL
SELO
20651B-19
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