MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 375
![MOD5234 10/100 ETHERNET MODULE](/photos/28/91/289101/mod-100ir_sml.jpg)
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: 375 of 754
- Download datasheet (13Mb)
19.2.4.3 Receive Descriptor Active Register (RDAR)
RDAR is a command register, written by the user, that indicates that the receive descriptor ring has
been updated (empty receive buffers have been produced by the driver with the empty bit set).
Whenever the register is written, the RDAR bit is set. This is independent of the data actually
written by the user. When set, the FEC will poll the receive descriptor ring and process receive
frames (provided ECR[ETHER_EN] is also set). Once the FEC polls a receive descriptor whose
empty bit is not set, then the FEC will clear the RDAR bit and cease receive descriptor ring polling
until the user sets the bit again, signifying that additional descriptors have been placed into the
receive descriptor ring.
The RDAR register is cleared at reset and when ECR[ETHER_EN] is cleared.
Freescale Semiconductor
Address
Reset
Reset
31–19
18–0
Bits
W
W
R HB
R
ERR
31
15
0
0
0
See
and
BABR BABT GRA TXF
30
14
0
0
0
Figure 19-3
Table
Name
—
29
13
0
0
0
19-4.
Figure 19-3. Interrupt Mask Register (EIMR)
28
12
0
0
0
Table 19-5. EIMR Field Descriptions
Interrupt mask. Each bit corresponds to an interrupt source defined by the EIR
register. The corresponding EIMR bit determines whether an interrupt condition can
generate an interrupt. At every processor clock, the EIR samples the signal
generated by the interrupting source. The corresponding EIR bit reflects the state of
the interrupt signal even if the corresponding EIMR bit is set.
0 The corresponding interrupt source is masked.
1 The corresponding interrupt source is not masked.
Reserved, should be cleared.
27
11
0
0
0
MCF5235 Reference Manual, Rev. 2
TXB RXF RXB
26
10
0
0
0
25
0
0
0
9
IPSBAR + 0x1008
24
0
0
0
8
MII
23
0
0
7
0
Description
ERR
EB
22
0
0
0
6
LC
21
0
0
0
5
RL
20
0
0
0
4
Memory Map/Register Definition
UN
19
0
0
0
3
18
0
0
0
0
2
17
0
0
0
0
1
16
0
0
0
0
0
19-11
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