TMC2250A datasheet(8/23 Pages) FAIRCHILD

Part #	TMC2250A

Description	Matrix Multiplier 12 x 10 bit, 50 MHz

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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PRODUCT SPECIFICATION

TMC2250A

8

REV. 1.0.2 10/25/00

Table 5. Coefﬁcient Input Ports

3 x 3 Matrix Multiplier (Mode 00)

This mode utilizes all six input and output ports in the basic

conﬁguration to realize a "triple dot product", in which each

output is the sum of all three input words in that column

multiplied by the appropriate stored coefﬁcients. The three

corresponding sums of products are available at the outputs

ﬁve clock cycles after the input data are latched, and three

new data words half-LSB rounded to 12 bits are then avail-

able every clock cycle.

X(5)=A(1)KA1(1)+B(1)KB1(1)+C(1)KC1(1)

Y(5)=A(1)KA2(1)+B(1)KB2(1)+C(1)KC2(1)

Z(5)=A(1)KA3(1)+B(1)KB3(1)+C(1)KC3(1)

Input Port

Registers Available

KA

KA1, KA2, KA3

KB

KB1, KB2, KB3

KC

KC1, KC2, KC3

Figure 1. 3 x 3 Matrix Multiplier Impulse Response (Mode 00)

1

01

10

11

0

1.0

0

00

KA1 + KB1 + KC1

KA2 + KB2 + KC2

KA3 + KB3 + KC3

K_1

K_2

K_3

00

CLK

CWE

KA, KB, KC

DATA IN A, B, C

MODE CONTROL

X OUT

Y OUT

Z OUT

23

4

5

678

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