Note On Writing To Registers In Transmission, Reception, And Simultaneous Transmission And Reception - Renesas H8S/2100 Series Hardware Manual

6-bit single-chip microcomputer

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Note on Writing to Registers in Transmission, Reception, and Simultaneous

Transmission and Reception

After 1 is set to the TE and RE bits in SCR to start transmission, reception, and simultaneous

transmission and reception, do not write to SMR, SCR, BRR, and SDCR. Also, do not overwrite

the same value as the register value. However, this does not apply when a register is written to

clear the TE and RE bits in SCR to 0 after transmission, reception, or simultaneous transmission

and reception is completed. Reading is always allowed.

Section 14 Serial Communication Interface (SCI)

Rev. 1.00 May 09, 2008 Page 427 of 954

REJ09B0462-0100