资料介绍
The Ultra37000™ family of CMOS CPLDs provides a range of
high-density programmable logic solutions with unparalleled
system performance. The Ultra37000 family is designed to
bring the flexibility, ease of use, and performance of the 22V10
to high-density CPLDs. The architecture is based on a number
of logic blocks that are connected by a Programmable Interconnect
Matrix (PIM). Each logic block features its own
product term array, product term allocator, and 16 macrocells.
The PIM distributes signals from the logic block outputs and all
input pins to the logic block inputs.
All of the Ultra37000 devices are electrically erasable and In-
System Reprogrammable (ISR), which simplifies both design
and manufacturing flows, thereby reducing costs. The ISR
feature provides the ability to reconfigure the devices without
having design changes cause pinout or timing changes. The
Cypress ISR function is implemented through a JTAGcompliant
serial interface. Data is shifted in and out through
the TDI and TDO pins, respectively. Because of the superior
routability and simple timing model of the Ultra37000 devices,
ISR allows users to change existing logic designs while simultaneously
fixing pinout assignments and maintaining system performance.
high-density programmable logic solutions with unparalleled
system performance. The Ultra37000 family is designed to
bring the flexibility, ease of use, and performance of the 22V10
to high-density CPLDs. The architecture is based on a number
of logic blocks that are connected by a Programmable Interconnect
Matrix (PIM). Each logic block features its own
product term array, product term allocator, and 16 macrocells.
The PIM distributes signals from the logic block outputs and all
input pins to the logic block inputs.
All of the Ultra37000 devices are electrically erasable and In-
System Reprogrammable (ISR), which simplifies both design
and manufacturing flows, thereby reducing costs. The ISR
feature provides the ability to reconfigure the devices without
having design changes cause pinout or timing changes. The
Cypress ISR function is implemented through a JTAGcompliant
serial interface. Data is shifted in and out through
the TDI and TDO pins, respectively. Because of the superior
routability and simple timing model of the Ultra37000 devices,
ISR allows users to change existing logic designs while simultaneously
fixing pinout assignments and maintaining system performance.
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