am79c984a Advanced Micro Devices, am79c984a Datasheet - Page 30

• Manufacturer Part Number: am79c984a
• Description: Enhanced Integrated Multiport Repeater Eimr
• Manufacturer: Advanced Micro Devices

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