PD70F3826_15 Datasheet, PDF (66/75 Pages) Renesas Technology Corp – RENESAS MCU

μ PD70F3826, 70F3827, 70F3828, 70F3829, 70F3830, 70F3831, 70F3832, 70F3833, 70F3834, 70F3835, 70F3836, 70F3837
27. CRC FUNCTIONS
27. CRC FUNCTION
The outline of the CRC function is shown below.
• CRC operation circuit for detection of data block errors
• Generation of 16-bit CRC code using a CRC-CCITT (X¹⁶ + X¹² + X⁵ + 1) generation polynomial for blocks of data
of any length in 8-bit units
• CRC code is set to the CRCD data register each time 1-byte data is transferred to the CRCIN register, after the
initial value is set to the CRCD register.
Internal bus
CRC input register (CRCIN) (8 bits)
CRC code generator
CRC data register (CRCD) (16 bits)
Internal bus
R01DS0029EJ0001 Rev.0.01
Sep 30, 2010
Page 66 of 75