Freescale Semiconductor MSC8144E, Reference Manual

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MSC8144E Reference Manual, Rev. 3
26-180 Freescale Semiconductor
Security Engine (SEC)
26.5.12.2 RNG Data Size Register (RNGDSR)
The RNG Data Size Register is used to tell the RNG to begin generating random data. The actual
content of the Data Size Register does not affect the operation of the RNG. After a reset and prior
to the first write of data size, the RNG builds entropy without pushing data onto the FIFO. Once
the Data Size Register is written, the RNG begins pushing data onto the FIFO. Data is pushed
onto the FIFO every 256 cycles until the FIFO is full. The RNG then attempts to keep the FIFO
full.
RNGDSR RNG Data Size Register Offset 0xCA010
Bits 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48
Field —
Type W
Reset 0x0000
Bits 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
Field —
Type W
Reset 0x0000
Bits 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Field —
Type W
Reset 0x0000
Bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Field —
Type W
Reset 0x0000