MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 400
MOD5234-100IR
Manufacturer Part Number
MOD5234-100IR
Description
MOD5234 10/100 ETHERNET MODULE
Manufacturer
NetBurner Inc
Type
Controllers & Processorsr
Datasheets
1.MOD5272-100IR.pdf
(3 pages)
2.MOD5234-100IR.pdf
(4 pages)
3.MOD5234-100IR.pdf
(754 pages)
Specifications of MOD5234-100IR
Interface
I²C, SPI, UART
Voltage - Supply
2.5V
Mounting Type
Surface Mount
Package / Case
Module
Product
Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Format
-
Baud Rates
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q4483564
- Current page: 400 of 754
- Download datasheet (13Mb)
Fast Ethernet Controller (FEC)
19.3.3 Microcontroller Initialization
In the FEC, the descriptor control RISC initializes some registers after ECR[ETHER_EN] is
asserted. After the microcontroller initialization sequence is complete, the hardware is ready for
operation.
Table 19-33
19.3.4 User Initialization (After Asserting ECR[ETHER_EN])
After asserting ECR[ETHER_EN], the user can set up the buffer/frame descriptors and write to
the TDAR and RDAR. Refer to
19.3.5 Network Interface Options
The FEC supports both an MII interface for 10/100 Mbps Ethernet and a 7-wire serial interface for
10 Mbps Ethernet. The interface mode is selected by the RCR[MII_MODE] bit. In MII mode
(RCR[MII_MODE] = 1), there are 18 signals defined by the IEEE 802.3 standard and supported
by the EMAC. These signals are shown in
19-36
shows microcontroller initialization operations.
Table 19-33. Microcontroller Initialization
Signal Description
Transmit Enable
Section 19.2.5, “Buffer
Transmit Clock
Receive Clock
Transmit Data
Transmit Error
Carrier Sense
Initialize BackOff Random Number Seed
MCF5235 Reference Manual, Rev. 2
Collision
Initialize Transmit Ring Pointer
Initialize FIFO Count Registers
Table 19-34. MII Mode
Initialize Receive Ring Pointer
Clear Transmit FIFO
Activate Transmitter
Clear Receive FIFO
Activate Receiver
Table 19-34
Description
EMAC pin
ETXD[3:0]
below.
ETXCLK
ERXCLK
Descriptors” for more details.
ETXEN
ETXER
ECOL
ECRS
Freescale Semiconductor
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