DS33Z41 Maxim Integrated Products, DS33Z41 Datasheet - Page 14
DS33Z41
Manufacturer Part Number
DS33Z41
Description
Network Controller & Processor ICs Quad Inverse-Multipl exing Ethernet Mappe
Manufacturer
Maxim Integrated Products
Datasheet
1.DS33Z41.pdf
(167 pages)
Specifications of DS33Z41
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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7 PIN DESCRIPTIONS
7.1 Pin Functional Description
Note that all digital pins are inout pins in JTAG mode. This feature increases the effectiveness of board level
ATPG patterns.
Table 7-1. Detailed Pin Descriptions
Note: I = Input; O = Output; Ipu = Input with pullup; Oz = Output with tri-state; IO = Bidirectional pin; IOz = Bidirectional pin with tri-state.
REF_CLKO
REF_CLK
RSYNC
TSYNC
NAME
RCLKI
TCLKI
RSER
TSER
D13
PIN
E13
G3
G2
G1
H1
F1
F2
TYPE
O
O
I
I
I
I
I
I
Serial Interface Transmit Clock Input. The clock reference for TSER,
which is output on the rising edge of the clock. TCLKI supports gapped
clocking, up to a maximum frequency of 52MHz.
Transmit Serial Data Output. Output on the rising edge of TCLKI.
Selective clock periods can be skipped for output of TSER with a
gapped clock input on TCLKI. The maximum data rate is 52Mbps.
Transmit Synchronization Input. An 8lHz synchronization pulse, used
to denote the first Channel 1 of the 8.192Mbps byte-interleaved IBO
data stream. Note that this input is also used to generate the transmit
byte synchronization if X.86 mode is enabled.
Serial Interface Receive Clock Input. Reference clock for receive
serial data on RSER. Gapped clocking is supported, up to the
maximum RCLKI frequency of 52MHz.
Receive Serial Data Input. Receive Serial data arrives on the rising
edge of the clock.
Receive Synchronization Input. An 8kHz synchronization pulse, used
to denote the first Channel 1 of the 8.192Mbps byte-interleaved IBO
data stream. Note that this input is also used to generate the receive
byte synchronization if X.86 mode is enabled.
Reference Clock (RMII and MII). When in RMII mode, all signals from
the PHY are synchronous to this clock input for both transmit and
receive. This required clock can be up to 50MHz and should have
±100ppm accuracy.
When in MII mode in DCE operation, the DS33Z41 uses this input to
generate the RX_CLK and TX_CLK outputs as required for the
Ethernet PHY interface. When the MII interface is used with DTE
operation, this clock is not required and should be tied low.
In DCE and RMII modes, this input must have a stable clock input
before setting the RST pin high for normal operation.
Reference Clock Output (RMII and MII). A derived clock output up to
50MHz, generated by internal division of the SYSCLKI signal.
Frequency accuracy of the REF_CLKO signal will be proportional to the
accuracy of the user-supplied SYSCLKI signal. See Section
more information.
SERIAL INTERFACE IO PINS
MII/RMII PORT
14 of 167
FUNCTION
8.2.2
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