SEIS=B_0x0, DRDY=B_0x0, CECS=B_0x0, CEIS=B_0x0, SECS=B_0x0
status register
| DRDY | Data Ready Once the output buffer becomes empty (after reading the RNG_DR register), this bit returns to 0 until a new random value is generated. Note: The DRDY bit can rise when the peripheral is disabled (RNGEN=0 in the RNG_CR register). If IE=1 in the RNG_CR register, an interrupt is generated when DRDY=1. 0 (B_0x0): The RNG_DR register is not yet valid, no random data is available. 1 (B_0x1): The RNG_DR register contains valid random data. |
| CECS | Clock error current status Note: CECS bit is valid only if the CED bit in the RNG_CR register is set to 0. 0 (B_0x0): The RNG clock is correct (fRNGCLK> fHCLK/32). If the CEIS bit is set, this means that a slow clock was detected and the situation has been recovered. 1 (B_0x1): The RNG clock is too slow (fRNGCLK< fHCLK/32). |
| SECS | Seed error current status One of the noise source has provided more than 64 consecutive bits at a constant value (â0â or â1â), or more than 32 consecutive occurrence of two bit patterns (â01â or â10â) Both noise sources have delivered more than 32 consecutive bits at a constant value (â0â or â1â), or more than 16 consecutive occurrence of two bit patterns (â01â or â10â) 0 (B_0x0): No faulty sequence has currently been detected. If the SEIS bit is set, this means that a faulty sequence was detected and the situation has been recovered. 1 (B_0x1): At least one of the following faulty sequence has been detected: |
| CEIS | Clock error interrupt status This bit is set at the same time as CECS. It is cleared by writing 0. Writing 1 has no effect. An interrupt is pending if IE = 1 in the RNG_CR register. 0 (B_0x0): The RNG clock is correct (fRNGCLK> fHCLK/32) 1 (B_0x1): The RNG has been detected too slow (fRNGCLK< fHCLK/32) |
| SEIS | Seed error interrupt status This bit is set at the same time as SECS. It is cleared by writing 0. Writing 1 has no effect. An interrupt is pending if IE = 1 in the RNG_CR register. 0 (B_0x0): No faulty sequence detected 1 (B_0x1): At least one faulty sequence has been detected. See SECS bit description for details. |