656
Chapter 16
Clocked Serial Interface B (CSIB)
User’s Manual U16580EE3V1UD00
16.4.2 Single transfer mode (master mode, transmission mode)
Figure 16-10:
Single Transfer Mode (Master Mode, Transmission Mode)
MSB First (CBnDIR Bit of CBnCTL0 Register = 0),
CBnCKP Bit of the CBnCTL1 Register = 0,
CBnDAP Bit of the CBnCTL1 Register = 0,
Transfer Data Length = 8 Bits (CSnCL3 to CBnCL0 Bits of CBnCTL2 Register = 0000B)
<1> Set the CBnCTL1 and CBnCTL2 registers to specify the transfer mode.
<2> Set the CBnTXE bit of the CBnCTL0 register to 1 at the same time as specifying the transfer
mode using the CBnDIR bit of the CBnCTL0 register, to set the transmission/reception enable
status.
<3> Set the CBnPWR bit of the CBnCTL0 register to 1 to enable CSIB operating clock supply.
<4> Write transfer data to the CBnTX register (transmission start).
<5> The reception complete interrupt (INTCBnR) is output, notifying the CPU that writing the CBnTX
(CBnTXL) register is possible.
<6> Check that the CBnTSF bit of the CBnSTR register is 0 and clear the CBnPWR bit to 0 to stop
clock supply to CSIB (end of transmission/reception).
To continue transfer, repeat steps <4> and <5> before <6>.
Remarks: 1.
The processing of steps <2> and <3> can be set simultaneously.
2.
μ
PD70F3187:
n = 0, 1
μ
PD70F3447:
n = 0
CBnTX register write (55H)
AAH
54H
A8H
50H
A0H
40H
80H
00H
55H (transmit data)
CBnTX
register
Shift
register n
<1> <4>
<5>
<6>
<2>
<3>
SCKBn pin
INTCBnR
signal
SIBn pin
CBnTSF bit
(55H)
0
1
0
0
1
0
L
1
1
SOBn pin
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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