721
Chapter 17
Clocked Serial Interface 3 (CSI3)
User’s Manual U16580EE3V1UD00
<1> When the CSICAEn bit of the CSIM3n register is set to 1, operating clock supply is enabled.
<2> Specify the transfer mode by setting the CSIC3n and CSIL3n registers.
<3> Write 1 to the FPCLRn bit of the SFA3n register to clear all the CSIBUFn pointers to 0.
<4> Confirm that the SFFULn bit = 0, SFEMPn bit = 1, and SFPn3 to SFPn0 bits = 0000 in the SFA3n
register.
<5> Specify the transfer mode by using the TRMDn, DIRn, CSITn, CSWEn, and CSMDn bits of the
CSIM3n register and, at the same time, enable transmission by setting the CTXEn bit to 1.
<6> Confirm that the SFFULn bit of the SFA3n register is 0, and then write transfer data to the
SFDB3n register.
Since the chip select outputs (SCS3n0 to SCS3n3) are ineffective in the slave mode and always
output the inactive level, writing of CS data to the SFCS3n register is not necessary.
If it is clearly known that the SFFULn bit is 0 because transfer data is written to that bit by the
interrupt servicing routine of INTC3n, it is not always necessary to confirm that the SFFULn bit is
0.
<7> Confirm that the INTC3n interrupt has occurred and the SFEMPn bit is 1, and disable
transmission by clearing the CTXEn bit of the CSIM3n register to 0 (end of transmission).
Remarks: 1.
To execute a further transfer, repeat <6> before <7>.
2.
μ
PD70F3187:
n = 0, 1
μ
PD70F3447:
n = 0
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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