PDSP1601MC Datasheet, PDF (1/18 Pages) Mitel Networks Corporation – ALU and Barrel Shifter

Supersedes April 1993 version, DS3763 - 1.1
The PDSP1601 is a high performance 16-bit arithmetic
logic unit with an independent on-chip 16-bit barrel shifter.
The PDSP1601 supports Multicycle multiprecision
operation. This allows a single device to operate at 10MHz for
16-bit-bit-fields, 5MHz for 32-bit fields and 2.5MHz for 64-bit
fields. The PDSP1601 can also be cascaded to produce wider
words at the 10MHz rate using the Carry Out and Carry In pins.
The Barrel Shifter is capable of extension, for example the
PDSP1601 can used to select a 16-bit field from a 32-bit input
in 100ns.
PDSP1601 MC
PDSP1601 MC
ALU and Barrel Shifter
DS3763 - 2.1 November 1998
GC100
Fig.1 Pin connections
GC pin Function GC pin Function GC pin Function GC pin Function
80
VCC
5
81
RS2
6
82
C0
7
83
C1
8
84
C2
9
85
C3
10
86
C4
11
87
C5
12
88
C6
13
89
C7
14
90
GND
15
91
C8
16
92
C9
17
93
C10
18
94
C11
19
95
C12
20
96
C13
21
97
C14
22
98
C15
23
99
OE
24
100
BFP
25
VCC
CO
RA0
RA1
RA2
CI
IA0
IA1
IA2
IA3
IA4
MSB
MSS
B15
B14
B13
B12
B11
B10
B9
B8
FEATURES
s 16-bit, 32 instruction 10MHz ALU
s 16-bit, 10MHz Logical, Arithmetic or Barrel Shifter
s Independent ALU and Shifter Operation
s 4 x 16-bit On Chip Scratchpad Registers
s Multiprecision Operation; e.g. 200ns 64-bit
Accumulate
s Three Port Structure with Three Internal Feedback
Paths Elimates I/O Bottlenecks
s 300mW Maximum Power Dissipation
s 100-pin Ceramic Quad Flatpack
APPLICATIONS
s Digital Signal Processing
s Array Processing
s Graphics
s Database Addressing
s High Speed Arithmetic Processors
30
B7
55
A7
31
B6
56
A6
32
B5
57
A5
33
B4
58
A4
34
B3
59
A3
35
B2
60
A2
36
B1
61
A1
37
B0
62
A0
38
CEB
63
CEA
39
CLK
64
MSC
40
GND
65
IS0
41
MSA0
66
IS1
42
MSA1
67
IS2
43
A15
68
IS3
44
A14
69
SV0
45
A13
70
SV1
46
A12
71
SV2
47
A11
72
SV3
48
A10
73
SVOE
49
A9
74
RS0
50
A8
75
RS1
Rev
A
B
C
D
Date
MAR 1993 NOV 1998
NOTE
Polyimide is used as an inter-layer dielectric and glassivation.
ORDERING INFORMATION
PDSP1601/MC/GC1R
(Ceramic QFP Package -
MIL STD 883 Class B
Screening)
1