RL78/F13, F14 CHAPTER 27 SAFETY FUNCTIONS
R01UH0368EJ0210 Rev.2.10 1588
Dec 10, 2015
(3) CRC data register (CRCD)
This register is used to store the general-purpose CRC operation result.
The possible setting range is 0000H to FFFFH.
After 1 clock of CPU/peripheral hardware clock (f
CLK) has elapsed from the time CRCIN register is written, the CRC
operation result is stored to the CRCD register.
The CRCD register can be set by a 16-bit memory manipulation instruction.
Reset signal generation clears this register to 0000H.
Figure 27-6. Format of CRC Data Register (CRCD)
Address: F02FAH After reset: 0000H R/W
Symbol 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CRCD
CRCD15 to CRCD0 Store the general-purpose CRC operation result
Note 1, 2
0000H to FFFFH CRC operation result when supporting CRC-CCITT
0000H to 000FH CRC operation result when conforming to SENT
Note3
Notes 1. Read the value written to CRCD register before writing to CRCIN register.
2. If writing and storing operation result to CRCD register conflict, the writing is ignored.
3. For CRCD register write when conforming to SENT, write valid data to the lower 4 bits (bits 3 to 0)
and write 0 to the other bits.
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