DS33R11 Maxim Integrated Products, DS33R11 Datasheet - Page 52
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DS33R11
Manufacturer Part Number
DS33R11
Description
Network Controller & Processor ICs Ethernet Mapper with Integrated T1-E1-J1
Manufacturer
Maxim Integrated Products
Datasheet
1.DS33R11.pdf
(344 pages)
Specifications of DS33R11
Product
Framer
Number Of Transceivers
1
Supply Voltage (max)
1.89 V, 3.465 V
Supply Voltage (min)
1.71 V, 3.135 V
Supply Current (max)
100 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Package / Case
BGA
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It is recommended that the user reset the queue pointers for the connection after disconnection. The pointers must
be reset before a connection is made. If this disconnect/connect procedure is not followed, incorrect data may be
transmitted. The proper procedure for setting up a connection follows:
Table 9-3. Registers Related to Connections and Queues
9.12 Arbiter
The Arbiter manages the transport between the Ethernet port and the Serial port. It is responsible for queuing and
dequeuing packets to a single external SDRAM. The arbiter handles requests from the HDLC and MAC to transfer
data to and from the SDRAM.
REGISTER
AR.RQSC1
SU.QCRLS
GL.C1QPR
AR.TQSC1
LI.TQCTLS
GL.TRQIE
GL.TRQIS
GL.CON1
LI.TQTIE
SU.QRIE
•
•
•
•
•
Set up the queue sizes for both transmit and receive queue
Set up the high/low thresholds and interrupt enables if desired (GL.TRQIE, LI.TQTIE, SU.QRIE).
Reset all the pointers for the connection desired (GL.C1QPR).
Set up the connections (GL.CON1).
If a connection is disconnected, reset the queue pointers after the disconnection.
Enables connection between the Ethernet Interface and the Serial Interface. Note that once
connection is set up, then the queues and thresholds can be setup for that connection.
Size for the Transmit Queue in Number of 32—2K packets.
Size for the Receive Queue in Number of 32—2K packets.
Interrupt enable for items related to the connections at the global level
Interrupt enable status for items related to the connections at the global level
Enables for the Transmit queue crossing high and low thresholds
Latched status bits for connection high and low thresholds for the transmit queue.
Enables for the receive queue crossing high and low thresholds
Latched status bits for receive queue high and low thresholds.
Resets the connection pointer.
52 of 344
FUNCTION
(AR.TQSC1
and AR.RQSC1).
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