User manual

Random Number Generator

www.ti.com

16.7.1.9 FROEN Register (Offset = 20h) [reset = X]

FROEN is shown in Figure 16-12 and described in Table 16-14.

FRO Enable

Figure 16-12. FROEN Register

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

RESERVED FRO_MASK

R-X R/W-FFFFFFh

Table 16-14. FROEN Register Field Descriptions

Bit Field Type Reset Description

31-24 RESERVED R X

Software should not rely on the value of a reserved. Writing any

other value than the reset value may result in undefined behavior.

23-0 FRO_MASK R/W FFFFFFh

Enable bits for the individual FROs. A '1' in bit [n] enables FRO 'n'.

Default state is all '1's to enable all FROs after power-up. Note that

they are not actually started up before the CTL.TRNG_EN bit is set

to '1'. Bits are automatically forced to ' 0' here (and cannot be written

to '1') while the corresponding bit in ALARMSTOP.FRO_FLAGS has

value '1'.

1172

Random Number Generator SWCU117A–February 2015–Revised March 2015

Submit Documentation Feedback