MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 610
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: 610 of 754
- Download datasheet (13Mb)
Random Number Generator (RNG)
Each time the RNGER is written, the value is used to update the internal state of the RNG. The
update is performed in such a way that the entropy in the RNG’s internal state is preserved. Use of
the RNGER can increase the entropy but never decrease it.
29.2.4 RNG Output FIFO (RNGOUT)
The RNGOUT provides temporary storage for random data generated by the RNG. As long as the
FIFO is not empty, a read of this address will return 32 bits of random data. If the FIFO is read
when it is empty, Error Interrupt, FIFO Underflow and Last Read bits in the RNGSR will be set.
If the interrupt is enabled in the RNGCR an interrupt will be triggered to the interrupt controller.
The RNGSR[OFL], described in
to monitor how many 32-bit words are currently resident in the FIFO. A new random word is
pushed into the FIFO every 256 clock cycles (as long as the FIFO is not full). It is very important
that the user polls RNGSR[OFL] to make sure random values are present before reading from the
FIFO.
29-4
Address
Address
Reset
Reset
Reset
Reset
W
W
W
W
R
R
R
R
31
15
31
15
0
0
0
0
0
0
30
14
30
14
0
0
0
0
0
0
Figure 29-3. RNG Entropy Register (RNGER)
Figure 29-4. RNG Output FIFO (RNGOUT)
29
13
29
13
0
0
0
0
0
0
28
12
28
12
0
0
0
0
0
0
Section 29.2.2, “RNG Status Register
MCF5235 Reference Manual, Rev. 2
27
27
11
11
0
0
0
0
0
0
26
10
26
10
0
0
0
0
0
0
IPSBAR + 0x1A_000C
IPSBAR + 0x1A_0008
25
25
0
0
0
0
0
0
9
9
Random Output
Random Output
24
24
0
0
0
0
0
0
8
8
ENT
ENT
23
23
0
0
0
0
0
0
7
7
22
22
0
0
0
0
0
0
6
6
21
21
0
0
0
0
0
0
5
5
20
20
0
0
0
0
0
0
4
4
(RNGSR),” can be polled
19
19
0
0
0
0
0
0
3
3
18
18
0
0
0
0
0
0
2
2
Freescale Semiconductor
17
17
0
0
0
0
0
0
1
1
16
16
0
0
0
0
0
0
0
0
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