Functional logic diagram(1), Atf1500a(l), Functional logic diagram – Rainbow Electronics ATF1500AL User Manual
Page 2
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ATF1500A(L)
2
Functional Logic Diagram
(1)
Note:
1.
Arrows connecting macrocells indicate direction and groupings of CASIN/CASOUT data flow.
The ATF1500A has 32 bi-directional I/O pins and 4 dedi-
cated input pins. Each dedicated input pin can also serve
as a global control signal: register clock, register reset or
output enable. Each of these control signals can be
selected for use individually within each macrocell.
Each of the 32 logic macrocells generates a buried feed-
back, which goes to the global bus. Each input and I/O pin
also feeds into the global bus. Because of this global bus-
sing, each of these signals is always available to all 32
macrocells in the device.
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