NXP Semiconductors K32 L2A Series, Reference Manual, Page: 1220 / 1379

48.1.3.3.3.3 Diagram
Bits
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
Reserved RTY_CT
W
Reset
0
1
0 0 0 0 0 0 0 0 0 0 0 0
1
0 0 1
Bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
Reserved LRUN_MAX
W
Reset
0
1
0 0 0 0 0 0 0 0
1
0 1 0 0 0 1 0
1. Reset occurs at POR, and when TRNG0_MCTL[RST_DEF] is written to 1.
48.1.3.3.3.4 Fields
Field Function
31-20
—
Reserved.
19-16
RTY_CT
RETRY COUNT. If a statistical check fails during the TRNG Entropy Generation, the RTY_CT value
indicates the number of times a retry should occur before generating an error. This field is writable only if
TRNG0_MCTL[PRGM] bit is 1. This field will read zeroes if TRNG0_MCTL[PRGM] = 0. This field is
cleared to the default POR value by writing the TRNG0_MCTL[RST_DEF] bit to 1.
15-8
—
Reserved.
7-0
LRUN_MAX
LONG RUN MAX LIMIT. This value is the largest allowable number of consecutive samples of all 1, or all
0, that is allowed during the Entropy generation. This field is writable only if TRNG0_MCTL[PRGM] bit is
1. This field will read zeroes if TRNG0_MCTL[PRGM] = 0. This field is cleared to the POR reset value by
writing the TRNG0_MCTL[RST_DEF] bit to 1.
48.1.3.3.4 TRNG0 Poker Range (TRNG0_PKRRNG)
48.1.3.3.4.1 Address
Register Offset
TRNG0_PKRRNG 400A5008h
Standalone True Random Number Generator (SA-TRNG).
K32 L2A Reference Manual, Rev. 2, 01/2020
1220 NXP Semiconductors