Renesas Asynchronous SH7145F Manuale Utente

APPLICATION NOTE REJ06B0384-0100Z/Rev.1.00 September 2004 Page 1 of 20 SH7145 Group SCI Break Detection Introduction This application note discusses

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 10 of 20 5. Flowchart 5.1 Main Routine main ()init_sci () Initialize t

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 11 of 20 5.2 SCI Routine init_sci ()returnCancel the module standby st

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 12 of 20 5.3 Receive Routine rcv_sci ()returnbreakReceived data transf

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 13 of 20 5.4 Error Processing Routine err ()returnOverrun error?NoYes

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 14 of 20 5.5 CMT0 Interrupt Routine cmt_int ()returnStop counting by

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 15 of 20 6. Program Listing /*****************************************

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 16 of 20 /************************************************************

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 17 of 20 /* Initialize SCI asynchronous mode */ P_SCI0.SCR_0.B

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 18 of 20 /************************************************************

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 19 of 20 Revision Record Description Rev. Date Page Summary 1.00 Se

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 2 of 20 1. Specifications As shown in figure 1, break detection is per

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 20 of 20 1. These materials are intended as a reference to assist our

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 3 of 20 2. Description of Functions In this sample task, the SCI (Ser

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 4 of 20 • In asynchronous mode, serial data communication is performe

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 5 of 20 2.2 Compare-Match Timer (CMT) The CMT generates an interrupt

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 6 of 20 3. Description of Operation Figure 4 shows the operation duri

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 7 of 20 4. Description of Software 4.1 Modules Table 4 describes the

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 8 of 20 Table 6 Description of Internal Registers (2) Register Name B

SH7145 Group SCI Break Detection REJ06B0384-0100Z/Rev.1.00 September 2004 Page 9 of 20 Table 7 Description of Internal Registers (3) Register Name B