PDSP16488A0 Mitel Networks Corporation, PDSP16488A0 Datasheet

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PDSP16488A0

Manufacturer Part Number
PDSP16488A0
Description
Single Chip 2D Convolver with Integral Line Delays
Manufacturer
Mitel Networks Corporation
Datasheet
Table 2 PDSP16488As needed to implement typical window sizes
Supersedes version in 1996 Media IC Handbook, HB4599-1.0
and the PDSP16488A MA data sheet, DS3742
image processing device. It performs a two dimensional convo-
lution between the pixels within a video window and a set of
stored coefficients. An internal multiplier accumulator array can
be multi-cycled at double or quadruple the pixel clock rate. This
then gives the window size options listed in Table 1.
four or eight line delays. The length of each delay can be
programmed to the users requirement, up to a maximum of 1024
pixels per line. The line delays are arranged in two groups,which
may be internally connected in series or may be configured to
accept separate pixel inputs. This allows interlaced video or
frame to frame operations to be supported.
downloaded from a host computer or from an EPROM. No
additional logic is required to support the EPROM and a single
device can support up to 16 convolvers.
network which allows several devices to be cascaded. Con-
volvers with larger windows can then be fabricated as shown in
Table 2.
of overflow, but the final result will not normally occupy all bits.
The PDSP16488A thus provides a gain control block in the
output path, which allows the user to align the result to the most
significant end of the 32-bit word.
Pixel
*Maximum rate is limited to 30MHz by line store expansion delays
size
(MHz)
16
16
pixel
Max.
8
8
8
rate
10
10
20
20
40
40
The PDSP16488A is a fully integrated, application specific,
An internal 32kbit RAM can be configured to provide either
The 8-bit coefficients are also stored internally and can be
The PDSP16488A contains an expansion adder and delay
Intermediate 32-bit precision is provided to avoid any danger
Table 1 Single PDSP16488A configurations
Width
Window size
Pixel
size
4
8
8
4
8
16
16
16
8
8
8
3 3 5 5 7 7 9 9 11 11 15 15 23 23
Depth
1
1
1
1
1
2
No. of PDSP16488As for N N window size
4
4
8
4
4
4*
1
2
2
4
-
Maximum pixel
rate (MHz)
4*
1
2
2
4
-
20
20
10
20
10
4
6
-
-
-
-
4
6
-
-
-
-
Single Chip 2D Convolver with Integral Line Delays
Line delays
4
8
-
-
-
-
4 1024
4 1024
8 512
4 512
4 512
9
-
-
-
-
-
FEATURES
Note: PDSP16488A devices are not guaranteed to cascade with
PDSP16488 devices. Mitel Semiconductor do not recommend
that PDSP16488A be mixed with PDSP16488 devices in a single
equipment design. The PDSP16488A requires external pullup
resistors in EPROM Mode (see Static Electrical Characteristics).
ORDERING INFORMATION
Commercial (0°C to
PDSP16488A / C0 / AC (PGA)
Industrial ( 40°C to
PDSP16488A / B0 / AC (PGA)
PDSP16488A / B0 / GC (QFP)
Military ( 55°C to
PDSP16488A / A0 / AC (PGA)
PDSP16488A / A0 / GC (QFP)
PDSP16488A / MA / ACBR (PGA) MIL-STD-883 Class B*
PDSP16488A / MA / GCPR (QFP) MIL-STD-883 Class B*
*See Notes following Static Electrical CharacteristicsTable
COMPOSITE
DATA
The PDSP16488A is a replacement for the
PDSP16488 (see Note below)
8 or 16-bit Pixels with rates up to 40 MHz
Window Sizes up to 8 8 with a Single Device
Eight Internal Line Delays
Supports Interlace and Frame-to-Frame Operations
Coefficients Supplied from an EPROM or Remote Host
Expandable in both X and Y for Larger Windows
Gain Control and Pixel Output Manipulation
84-pin PGA or 132-pin QFP Package Options
EXTRACT
SYNC
Fig. 1 Typical stand-alone real time system
ADC
CLOCK
PIXEL
ODD FIELD
OPTIONAL
GEN
DELAY
FIELD
SYNC
125°C)
70°C)
85°C)
CLK
HRES
BYPASS
L7:0
IP7:0
Advance Information
PDSP16488A
ADDR DATA
PDSP16488A
DS3713 - 6.4 December 1997
EPROM
DELOP
POWER
D15:0
RESET
RES
ON
DELAYED
OUTPUT
DATA
SYNC

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PDSP16488A0 Summary of contents

Page 1

Supersedes version in 1996 Media IC Handbook, HB4599-1.0 and the PDSP16488A MA data sheet, DS3742 The PDSP16488A is a fully integrated, application specific, image processing device. It performs a two dimensional convo- lution between the pixels within a video window ...

Page 2

Signal Type IP7:0 Input L7:0 I/O BYPASS Input HRES Input X15:0 Dual function D15:0 Output Output PC1 Input PC0 DELOP Output DS I/O CE Input Input R/W PROG I/O CLK Input BIN Output OVR Output RES Input SINGLE Input MASTER ...

Page 3

CE DS R/W PC0 PROG MASTER SINGLE CONTROL DELOP HRES Y IP7:0 DELAY BYPASS DELAY DELAYS Y L7:0 DELAY DELAYS PC1 RES CS3:0 DELAY COEFFICIENT STORE (64) 1 LINE 3 LINE 8 8 ARRAY OF MACs 4 LINE CLK Fig. ...

Page 4

Fig. 3a Pin connections for 84 I/O pin grid array package - AC84 (Power ) (bottom view) Fig 3b Pin connections for 132 I/O ceramic power flatpack - GC132 (Power) (top view) Fig 3 Pin connection ...

Page 5

Pin Signal Pin IP2 IP1 IP0 BYPASS X15 D1 N/C N3 X14 X13 N/C SINGLE ...

Page 6

BASIC OPERATION The PDSP16488A convolver performs a weighted sum of all the pixels within two dimensional window. Each pixel value is multiplied by a signed coefficient, or weight, and the products are summed together. In practice positive ...

Page 7

IP7:0 512 BYPASS 512 512 512 8 8 BYPASS ARRAY 512 512 512 512 L7:0 IP7:0 1024 BYPASS 4 4 1024 1024 ARRAY 1024 L7:0 To support real time applications an option is provided in which the ...

Page 8

WINDOW LINE LINE N C8 LINE WINDOW LINE N 2 C48 C49 C50 C51 LINE C10 C11 LINE N C40 C41 C42 C43 LINE N 1 ...

Page 9

Gain Control Block This block is provided as an aid to locating the bits of interest in the 32-bit internal result. The magnitude of the largest convolved output will depend on the size of the window, and the coefficient values ...

Page 10

INPUT 0 REG DELAYS 0 DELAY = 0, DEFINED BY REG D3 DELAYS WIDTH = S LINE DELAYS 0 ZERO DELAYS 4 CLOCK REG DELAYS 0 REG DELAYS D ...

Page 11

The data from the last device in a horizontal row of convolvers feeds the expansion input of the first device in the next row. This is shown in Fig. 7. With this arrangement, the position of the partial window as ...

Page 12

IP7:0 512 512 512 512 512 512 512 512 L7:0 IP7:0 L7:0 512 512 MSB LSB 512 512 512 512 512 512 IP7:0 1024 1024 1024 1024 L7:0 IP7:0 L7:0 512 512 16 MSB LSB C0 C16 512 512 16 ...

Page 13

Loading Registers from a Host CPU The X14:0 expansion data inputs on a single or master device are connected to the host bus to provide address and data for the internal registers multiple device system the remaining devices ...

Page 14

EPROM control lines X7:0 8 bit data from the EPROM to the Master or Single device. Otherwise data is received from the previous device in the chain. X14:8 Lower 7 address bits to the EPROM from a Master or Single ...

Page 15

BIT 7 This bit controls the bypass option on the first line delay on the L7:0 inputs only effective when an 8 bit pixel mode is selected, which also needs more than four line delays. When L7:0 are ...

Page 16

ELECTRICAL CHARACTERISTICS The Electrical Characteristics are guaranteed over the following range of operating conditions, unless otherwise stated 5V±10%, GND = 0V (Military) = 55°C to AMB Static Characteristics Characteristic Output high voltage Output low voltage ...

Page 17

Pin Pin Voltage A1 L2 GND GND C1 N2 GND D2 M3 GND D1 N GND E1 N4 GND F2 M5 GND G2 N5 GND G1 M6 5· N/C J1 ...

Page 18

Switching Characteristics for Host mode Characteristic DS hold time after REPLY low Host address/data setup time Read setup time to prevent Write Host signal hold time Expansion in to data out in PROG mode Delay from DS low to low ...

Page 19

Switching Characteristics for EPROM mode Characteristic Delay from DS low to Master PC1 Delay from low to DS high PC0 Delay from DS high to high PC1 DS high time DS high to new EPROM address EPROM data setup time ...

Page 20

Switching Characteristics, operational timings Characteristic CLK low time CLK high time Data in setup time Data in hold time CLK rising to output delay L7:0 output delay HRES low setup time Output enable time Output disable time X15:0 Expansion setup ...

Page 21

APPLICATIONS INFORMATION Device Requirements The number of devices required to implement a given convolver window depends on the size of the window, the required pixel rate, and whether the pixel accuracy bits. In practice ...

Page 22

The least significant 8 bits of the pixel are connected to the Master device and the most significant 8 bits are connected to the device producing the final result.. The internal sum in this device must be delayed by four ...

Page 23

EPROM V 15k NOM GND GND HRES SYNC BYPASS V DD PDSP16488A PIXEL IP7:0 DATA LEAST SIG BYTE OF L7:0 16-BIT PIXEL Non-interlaced EPROM mode HOST CPU O/C HRES SYNC BYPASS V DD PDSP16488A PIXEL IP7:0 DATA LEAST SIG L7:0 ...

Page 24

PIXEL DATA SYNC PIXEL CLOCK RESET SYNC ODD FIELD PIXEL CLOCK RESET 8-BIT PIXEL DATA 24 EPROM MSB GND IP7:0 PC0 PDSP16488A GND R HRES WINDOW V CLK BYPASS DD L7:0 RES V DD 15k NOM IP7:0 ...

Page 25

PIXEL DATA GND SYNC PIXEL CLOCK CLK V DD O/C RESET RES V DD 15k NOM MSB GND GND O/C LSB SYNC ODD FIELD PIXEL CLOCK CLK LSB RESET RES MSB FIELD DELAY V DD 16-BIT PIXEL DATA MSB ...

Page 26

PIXEL DATA PIXEL CLOCK CLK SYNC HRES IP7:0 RESET RES DS R/W HRES V DD BYPASS L7:0 IP7:0 PC0 DS R/W HRES GND BYPASS L7:0 26 REPLY HOST CPU ADDRESS DECODE PROG CE1 CE2 CE3 CE4 O/C IP7:0 PC1 PC0 ...

Page 27

EPROM V DD 15k ADDR BITS NOM PIXEL DATA PIXEL CLOCK CLK GND SYNC HRES RESET RES IP7:0 DS PDSP16488A GND R/W HRES V BYPASS DD FIELD DELAY IP7:0 PC0 DS PDSP16488A GND R/W HRES BYPASS ODD FIELD UPPER ALS138 ...

Page 28

MSB 16-BIT PIXEL DATA PIXEL CLOCK CLK SYNC HRES MSB IP7:0 RESET RES DS R/W HRES V DD BYPASS L7:0 LSB LSB FIELD DELAY MSB MSB IP7:0 DS R/W HRES ODD FIELD BYPASS L7:0 LSB LSB 28 REPLY HOST CPU ...

Page 29

EPROM V DD 15k NOM PIXEL DATA PIXEL CLOCK CLK O/C SYNC HRES RESET RES IP7:0 MASTER DS PDSP16488A R/W GND HRES V BYPASS DD L7:0 IP7:0 PC0 DS PDSP16488A R/W GND HRES GND BYPASS L7:0 IP7:0 PC0 DS PDSP16488A ...

Page 30

PIXEL CLOCK CLK SYNC HRES RESET RES PIXEL EPROM DATA O/C IP7:0 CS3 MASTER DS PC1 PDSP16488A R/W PROG GND (1) CE HRES V BYPASS RES DD L7:0 4 CLK DELAYS IP7:0 PC1 PROG DS PDSP16488A GND R/W (4) CE ...

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North America Tel: +1 (770) 486 0194 Fax: +1 (770) 631 8213 Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively “Mitel”) is believed to be reliable. However, Mitel assumes no liability for errors ...

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