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参数资料
| 型号： | CY38015V144-66BBC |
| 厂商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分类： | PLD |
| 英文描述： | LOADABLE PLD, 18.9 ns, PBGA144 |
| 封装： | FBGA-144 |
| 文件页数： | 28/32页 |
| 文件大小： | 929K |
| 代理商： | CY38015V144-66BBC |
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PRELIMINARY
Quantum38K ISR
CPLD Family
Document #: 38-03043 Rev. **
Page 5 of 32
Logic Block (LB)
The logic block is the basic building block of the Quantum38K
architecture. It consists of a product term array, an intelligent
product-term allocator, and 16 macrocells.
Product Term Array
Each logic block features a 72 x 83 programmable product
term array. This array accepts 36 inputs from the PIM. These
inputs originate from device pins and macrocell feedbacks as
well as channel memory feedbacks. Active LOW and active
HIGH versions of each of these inputs are generated to create
the full 72-input field. The 83 product terms in the array can be
created from any of the 72 inputs.
Of the 83 product terms, 80 are for general-purpose use for
the 16 macrocells in the logic block. Two of the remaining three
product terms in the logic block are used as asynchronous set
and asynchronous reset product terms. The final product term
is the Product Term clock (PTCLK) and is shared by all 16
macrocells within a logic block.
Product Term Allocator
Through the product term allocator, Warp software automati-
cally distributes the 80 product terms as needed among the 16
macrocells in the logic block. The product term allocator pro-
vides two important capabilities without affecting performance:
product term steering and product term sharing.
Product Term Steering
Product term steering is the process of assigning product
terms to macrocells as needed. For example, if one macrocell
requires ten product terms while another needs just three, the
product term allocator will “steer” ten product terms to one
macrocell and three to the other. On Quantum38K devices,
product terms are steered on an individual basis. Any number
between 1and 16 product terms can be steered to any macro-
cell.
Product Term Sharing
Product term sharing is the process of using the same product
term among multiple macrocells. For example, if more than
one function has one or more product terms in its equation that
are common to other functions, those product terms are only
programmed once. The Quantum38K product term allocator
allows sharing across groups of four macrocells in a variable
fashion. The software automatically takes advantage of this
capability so that the user does not have to intervene.
Note that neither product term sharing nor product term steer-
ing have any effect on the speed of the product. All steering
and sharing configurations have been incorporated in the tim-
ing specifications for the Quantum38K devices.
.
Figure 3. Quantum38K Logic Block Cluster Diagram
Logic
Block
0
Logic
Block
1
Logic
Block
3
Logic
Block
2
Cluster
Memory
0
PIM
Logic
Block
7
Logic
Block
6
Logic
Block
4
Logic
Block
5
Cluster
Memory
1
64 Inputs From
Horizontal Routing
Channel
64 Inputs From
Vertical Routing
Channel
Clock Inputs
GCLK[3:0]
CC
CC = Carry Chain
16
36
16
36
16
36
16
36
16
36
16
36
16
36
8
25
8
25
4
16
36
64 Inputs from
Horizontal Routing
Channel
144 Outputs to
Horizontal and Vertical
Cluster-to-Channel PIMs
64 Inputs from
Vertical Routing
Channel
16
相关PDF资料 |
PDF描述 |
|---|---|
| CY38015V144-66BBI | LOADABLE PLD, 18.9 ns, PBGA144 |
| CY38015V144-83BBC | LOADABLE PLD, 15 ns, PBGA144 |
| CY38015V144-83BBI | LOADABLE PLD, 15 ns, PBGA144 |
| CY38015V208-66NC | LOADABLE PLD, 18.9 ns, PQFP208 |
| CY38015V208-66NI | LOADABLE PLD, 18.9 ns, PQFP208 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CY38050V208-125NTC | 制造商:Cypress Semiconductor 功能描述:CPLD QUANTUM38K 72K GATES 768 MCRCLLS COMM 0.18UM 2.5V/3.3V - Bulk |
| CY38050V208-125NTI | 制造商:Cypress Semiconductor 功能描述:CPLD QUANTUM38K 72K GATES 768 MCRCLLS IND 0.18UM 2.5V/3.3V 2 - Bulk |
| CY38050V208-83NTC | 制造商:Cypress Semiconductor 功能描述:CPLD QUANTUM38K 72K GATES 768 MCRCLLS COMM 0.18UM 2.5V/3.3V - Bulk |
| CY38050V208-83NTI | 制造商:Cypress Semiconductor 功能描述:CPLD QUANTUM38K 72K GATES 768 MCRCLLS IND 0.18UM 2.5V/3.3V 2 - Bulk |
| CY38100V208-125NTI | 制造商:Cypress Semiconductor 功能描述:CPLD QUANTUM38K 144K GATES 1536 MCRCLLS IND 0.18UM 2.5V/3.3V - Bulk |
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