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Maxim DS33Z41 Manual de usuario Pagina 17

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DS33Z41DK
17 of 44
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
SCHEMATICS
The DS33Z41DK schematics are featured in the following pages. As this is a hierarchal schematic some
explanation is in order. The main board is composed of six hierarchal blocks: the processor block, the DS33Z41
block, and four Ethernet blocks inside the DS33Z41 block, which is a nested hierarchy block. The DS21458
consists of a single hierarchy block, which connects to a 140-pin AV bus that snaps into the mainboard.
All signals inside a hierarchy block are local, with exception for V
CC
and ground. In-port and out-port connectors are
used to allow signals inside a hierarchy block to become accessible as pins on the hierarchy blocks symbol. From
here, blocks are wired together as if they were ordinary components. The system diagram is shown again below,
with schematic page numbers given for each functional block.
This system contained other hierarchy blocks that are not shown (primarily a single-port serial card, T3E3 serial
card and the DS33Z44 mainboard). Due to this, page numbers will not be continuous and some gaps in numbering
will be seen when referring to the total page count. However, page numbers inside any given hierarchy block will
be continuous.
Figure 3. Schematic Hierarchy and Floorplan
DS33Z11 BLOCK
PAGE 3. SYMBOL
SCHEMATIC
PAGES 5-10
µP BLOCK
PAGE 4 SYMBOL
SCHEMATIC
PAGES 13-19
DS33Z11 MAINBOARD TOP LEVEL SCHEMATIC
ETHERNET PHY
PAGE 8 SYMBOL
SCHEMATIC
PAGES 11-12
SERIAL INTERFACE
2 X 140 PIN CONNECTORS
DS21458 RESOURCE CARD
SCHEMATIC
PAGES 46-55
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