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Chapter 17
Clocked Serial Interface 3 (CSI3)
User’s Manual U16580EE3V1UD00
17.7 Cautions
The following points must be observed when using CSI3n.
Cautions: 1. The CSI3n unit is reset and CSI3n is stopped when the CSICAEn bit of the CSIM3n
register is cleared to 0. To operate CSI3n, first set the CSICAEn bit to 1. Usually,
before clearing the CSICAEn bit to 0, clear both the CTXEn and CRXEn bits to 0
(after the end of transfer).
2. Be sure to write 1 to the FPCLRn bit of the SFA3n register to clear all the CSIBUFn
pointers to 0 before enabling transfer by setting the CTXEn or CRXEn bit of the
CSIM3n register to 1. If the CTXEn or CRXEn bit is set to 1 without
clearing the pointers, and if the previously transferred data remains in the
CSIBUFn register, transferring that data is immediately started.
If transfer data is set to the CSIBUFn register before transfer is enabled, transfer
is started as soon as the CTXEn or CRXEn bit is set to 1.
3. If the SFA3n register is read immediately after data has been written to the
SFDB3n and SFDB3nL registers, the SFFULn, SFEMPn, and SFPn3 to SFPn0 bits
of the SFA3n register may not change their values in time.
If the SFA3n register is read before the SFFULn bit is set to 1 and a 17th data is
written, the CSIBUFn overflow interrupt (INTC3nOVF) occurs.
4. When using CSI3n in configuration with DMA transfer, observe that only single
mode is permitted (TRMDn bit of CSIM3n register = 0), and chip select CSI regis-
ters (SFCS3n, SFCS3nL) are not supported.
Remark:
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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