DS33Z11 Maxim Integrated Products, DS33Z11 Datasheet - Page 62

• Manufacturer Part Number: DS33Z11
• Description: Network Controller & Processor ICs Ethernet Mapper Ethe rnet-Serial TDM Ethe
• Manufacturer: Maxim Integrated Products

Specifications of DS33Z11

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.20 Hardware Mode
The hardware mode settings are provided for users who do not want to utilize a Microprocessor or EEPROM. The
hardware mode default queue sizes and watermark thresholds can be selected for various line rates using the
MODEC pins. The user can control the DTE/DCE and RMII/MII settings with hardware pins DCEDTES, and
RMIIMIIS. The flow control (pause and back pressure) can be configured with the AFCS hardware pins. The user
can also control bit order, data scrambling, and X.86 encapsulation using the A0, A1, and A2 pins respectively.
Half-Duplex operation is not available in hardware mode. Note that in the 100-pin CSBGA package option
(DS33ZH11), three pins are reserved for these three signals in future package revisions, but may not be included
in the current version. Contact the factory at
applications for each of the Hardware Modes are outlined in following tables. Note that in the hardware only mode
the following restrictions apply:
Table 8-8 Hardware Mode and Typical Applications
Modec Pin Settings
The specific registers and detailed functions for each of the hardware modes are detailed in the following tables.
00
10
The DS33Z11 has 3 different default hardware settings. This is outlined in the following tables. The typical
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The ports are powered up and ready to transmit/receive after reset
BERT functionality is not supported in Hardware Mode.
Queue size and watermarks are fixed
Receive and Transmit HDLC FCS are 16 bits
Transmit Packets are resent if errors occur, Receive Packets are rejected if errors occur
MII, RMII, Full and Half Duplex, Automatic flow control, DTE, DCE, 100 or 10 Mbps can be selected
through Hardware Pins
TDEN and RDEN are not supported and should be tied high
CIR function is not supported in Hardware Mode.
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Applications
Serial Interface connected to a T1/E1 Line, Ethernet Interface set to
10 Mbps or 100 Mbps MII/RMII.
Transmitter and receiver are enabled for communication.
Serial Interface connected to a T3/E3 line, Ethernet Interface set to 10
Mbps or 100 Mbps MII/RMII.
Transmitter and receiver are enabled for communication.
for more details.
DS33Z11 Ethernet Mapper