AM79C984 Advanced Micro Devices, AM79C984 Datasheet - Page 30
AM79C984
Manufacturer Part Number
AM79C984
Description
enhanced Integrated Multiport Repeater (eIMR)
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C984.pdf
(44 pages)
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30
RST
(Note: In a multiple eIMR system, the reset
signal must be synchronized to CLK.)
20 MHz
OSC
D
P C
1 k
SELI_0
SELI_1
Q
DAT JAM ACK COL
Q
74LS74
D
P C
eIMR
Q
Q
Figure 11. eIMR Internal Arbitration Mode Connection
SELO
V
Figure 12. IMR+ Mode External Arbitration
DD
CLK
SELI_0
RST
CLK
SELI_0
RST
SELI_1
SELI_1
P R E L I M I N A R Y
SELI_0
SELI_1
DAT JAM ACK COL
Am79C984A
SELO
SELO
eIMR
eIMR
eIMR
COL ACK SEL1 SEL2 SEL3
SELO
Arbiter
1 k
SELI_0
RST
CLK
SELI_1
SELI_0
SELI_1
DAT JAM ACK COL
GCOL
SELO
eIMR
eIMR
~1 k
SELO
20650B-17
~1 k
20650B-16
V
DD
V
DD
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