MOD5272-100IR NetBurner Inc, MOD5272-100IR Datasheet - Page 239
MOD5272-100IR
Manufacturer Part Number
MOD5272-100IR
Description
PROCESSOR MODULE FLASH MOD5272
Manufacturer
NetBurner Inc
Type
Controllers & Processorsr
Datasheets
1.MOD5272-100IR.pdf
(2 pages)
2.MOD5272-100IR.pdf
(3 pages)
3.MOD5272-100IR.pdf
(550 pages)
Specifications of MOD5272-100IR
Module/board Type
Processor Module
Ethernet Connection Type
10/100 Ethernet Port RJ-45
Operating Voltage
3.3 V
Product
Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
MOD5272
For Use With
528-1001 - KIT DEVELOP NETWORK FOR MOD5272
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
528-1008
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MOTOROLA
11.5.5 Receive Descriptor Active Register (RDAR)
The RDAR register, Figure 11-8, is a command register that should be written by the user
to indicate that the receive descriptor ring has been updated (empty receive buffers have
been produced by the driver with the E bit set).
The R_DES_ACTIVE bit is set whenever the register is written. This is independent of the
data actually written by the user. When set, the FEC polls the receive descriptor ring and
processes receive frames (provided ETHER_EN is also set). As soon as the FEC polls a
receive descriptor whose E bit is not set, it clears the R_DES_ACTIVE bit and stops polling
the receive descriptor ring.
The RDAR register is cleared at reset and when ETHER_EN is cleared.
Reset
Reset
Field
Field
Addr
R/W
R/W
31–4
3–2
1–0
Bit
31
15
Name
IVEC
—
—
Reserved, should be cleared.
Interrupt vector. IVEC gives the highest outstanding priority FEC interrupt. The bit field
meanings (from low priority to high priority) are as follows:
00 No pending FEC interrupt
01 Non-time critical interrupt (All interrupts except TXB, TXF, RXB, and RXF.)
10 Transmit interrupt
11 Receive interrupt
Reserved, should be cleared.
—
Table 11-10. IVSR Field Descriptions
Figure 11-8. RDAR Register
Chapter 11. Ethernet Module
25
R_DES_ACTIVE
0000_0000_0000_0000
0000_0000_0000_0000
24
MBAR + 0x850
Read/Write
Read/Write
—
Description
23
—
Programming Model
11-15
16
0
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