MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 605
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: 605 of 754
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28.4.5
An NMAC consists of one Hash operation.
Freescale Semiconductor
7. MDDSR register write. Load this register with the length of the message data (without
8. MDHA does the required algorithm’s auto padding of the message.
9. Set the MDCMR[GO] bit.
10. Wait for MDSR[INT] to be set or done interrupt to be triggered to indicate successful
11. If MDSR[DONE] is set or done interrupt is triggered, then read the message digest from
1. Reset the MDHA using the MDCMR[SWR] bit.
2. MDCR register write. Enable the interrupts. (optional)
3. MDMR register write. Select algorithm, data padding, HMAC.
4. Direct context load of the second key into DDx1 registers from OPAD step.
5. MDMDS register write. Load this register with the length of the key.
6. Direct context load of the first key into MDx0 registers from IPAD step.
7. MDDSR register write. Load this register with the length of the message data (without
8. Direct context load of MDMDS register with key size (for NMAC load with data size of 0
9. Fill data FIFO with message to be hashed.
10. MDHA does the required algorithm’s auto padding of the message.
11. Set the MDCMR[GO] bit.
12. Wait for MDSR[INT] to be set or done interrupt to be triggered to indicate successful
padding) in bytes.
completion (or failure).
the message digest registers.
padding) in bits.
bytes).
completion (or failure).
Performing an NMAC
You will need to provide a time-out feature in your interrupt handler.
The MDHA will stall with no response if it is waiting for message
data. This will most likely occur if the MDDSR write is not received
or auto-padding is disabled and a partial message block is provided.
MCF5235 Reference Manual, Rev. 2
NOTE
Initialization/Application Information
28-19
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