CHAPTER 12 REAL-TIME OUTPUT FUNCTION (RTO)User’s Manual U16896EJ2V0UD 36112.4 OperationIf the real-time output operation is enabled by setting the RTPC0.RTPOE0 bit to 1, the data of the RTBH0 andRTBL0 registers is transferred to the real-time output latch in synchronization with the generation of the selectedtransfer trigger (set by the RTPC0.EXTR0 and RTPC0.BYTE0 bits). Of the transferred data, only the data of the bitsspecified as real-time output enabled by the RTPM0 register is output from bits RTPOUT00 to RTPOUT05. The bitsspecified as real-time output disabled by the RTPM0 register output 0.If the real-time output operation is disabled by clearing the RTPOE0 bit to 0, the RTPOUT00 to RTPOUT05 signalsoutput 0 regardless of the setting of the RTPM0 register.Figure 12-2. Example of Operation Timing of RTO0 (When EXTR0 and BYTE0 Bits = 00)A B A B A B A BD01 D02 D03 D04D11 D12 D13 D14D11 D12 D13 D14D01 D02 D03 D04INTTM51 (internal)INTTM50 (internal)CPU operationRTBH0RTBL0RT output latch 0 (H)RT output latch 0 (L)A: Software processing by INTTM51 interrupt request signal (write to RTBH0 register)B: Software processing by INTTM50 interrupt request signal (write to RTBL0 register)Remark For the operation during standby, refer to CHAPTER 19 STANDBY FUNCTION.
