AM79C976KI AMD (ADVANCED MICRO DEVICES), AM79C976KI Datasheet - Page 47

• Manufacturer Part Number: AM79C976KI
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C976KI

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / RoHS Status: Not Compliant

Disconnect Without Data Transfer
Figure 16 shows a target disconnect sequence during
which no data is transferred. STOP is asserted on clock
4 without TRDY being asserted at the same time. The
Am79C976 controller terminates the access with the
deassertion of FRAME on clock 5 and of IRDY one
9/14/00
DEVSEL
FRAME
TRDY
STOP
C/BE
IRDY
REQ
GNT
CLK
PAR
AD
1
DEVSEL is sampled
Figure 15. Disconnect With Data Transfer
2
ADDR i
0111
3
P R E L I M I N A R Y
DATA
PAR
4
0000
Am79C976
DATA
5
PAR
clock cycle later. It finally releases the bus on clock 7.
The Am79C976 controller will again request the bus
after two clock cycles to retry the last transfer. The
starting address of the new transfer will be the address
of the last non-transferred data.
6
7
8
9
10
ADDR i +8
0111
11
22929B17
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