TMC2250A Fairchild Semiconductor, TMC2250A Datasheet - Page 8

• Manufacturer Part Number: TMC2250A
• Description: Matrix Multiplier 12 X 10 Bit, 50 Mhz
• Manufacturer: Fairchild Semiconductor

PRODUCT SPECIFICATION
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
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MODE CONTROL
Input Port
DATA IN A, B, C
KC
KA
KB
KA, KB, KC
X OUT
Y OUT
Z OUT
CWE
CLK
KA1, KA2, KA3
KB1, KB2, KB3
KC1, KC2, KC3
K_1
01
0
Registers Available
1
Figure 1. 3 x 3 Matrix Multiplier Impulse Response (Mode 00)
K_2
10
0
2
K_3
1.0
11
3
00
0
4
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)
00
0
5
0
6
7
KA 1 + KB 1 + KC 1
KA 2 + KB 2 + KC 2
KA 3 + KB 3 + KC 3
REV. 1.0.2 10/25/00
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TMC2250A