Rng Result Register (Rnrr) - Hitachi H8/3152 Hardware Manual

Bit 6: GE Description
0 Stops the RNG operation
1 Starts the RNG operation
Bits 5 to 0—Reserved: Always read as 1 and cannot be written to.
Although not used at present, the reserved bits may be used in the future. When writing to RCSR,
write 0 to these bits.
4.2.2

RNG Result Register (RNRR)

RNRR is a 16-bit read-only register and cannot be written to. RNRR must always be read in word
size. The initial value is undefined.
The random number generated in the RNG is written to RNRR. Reading RNRR while the RNG is
active (GE = 1) clears the RRDY to 0, then automatically generates and writes a new random
number to RNRR.
Bit:
Initial value:
Read/Write:
15 14 13 12 11
— — — — —
R R R R R
10 9 8 7 6
— — — — —
R R R R R
(Initial value)
5 4 3 2 1
— — — — —
R R R R R
0
—
R
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