SH7263 Datasheet, PDF (745/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 14 Realtime Clock (RTC)
14.5.4 Notes on Register Read and Write Operations
• Follow the directions in 14.4.3, Reading Time, when reading data after writing to counter
registers such as the second counter register.
• After writing to the RCR2 register, perform two dummy reads before reading data. The register
contents from before the write are returned by the two dummy reads, and the third read returns
the register contents reflecting the write.
• Registers other than the above can be read immediately after a write and the written value is
reflected.
Rev. 2.00 Mar. 14, 2008 Page 711 of 1824
REJ09B0290-0200