687
Chapter 17
Clocked Serial Interface 3 (CSI3)
User’s Manual U16580EE3V1UD00
(5)
Transmit data CSI buffer register 3n (SFDB3n, SFDB3nL, SFDB3nH)
The SFDB3n register is a 16-bit buffer register that stores transmit data. It is overlayed by an 8-bit
buffer register SFDB3nL on the lower 8 bits, and an 8-bit buffer register SFDB3nH on the higher
8 bits.
When transmit data is written to the SFDB3n register, the data is sequentially stored in the
CSIBUFn register while the CSIBUFn pointer for writing is incremented.
When the data of this register is read, the value of the transmit data written last is read.
The SFDB3n register can be read or written in 16-bit units.
The SFDB3nL and SFDB3nH registers can be read or written, in 8-bit or 1-bit units.
Reset input clears the SFDB3n register to 0000H, and the SFDB3nL and SFDB3nH registers to
00H accordingly.
Figure 17-6:
Transmit Data CSI Buffer Register 3n (SFDB3n, SFDB3nL, SFDB3nH)
Note:
Not available on µPD70F3447
Remark:
μ
PD70F3187:
n = 0, 1
μ
PD70F3447:
n = 0
After reset:
0000H
R/W
Address:
SFDB30 FFFFFD46H,
SFDB31 FFFFFD66H
Note
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SFDB3n
SFDB
n15
SFDB
n14
SFDB
n13
SFDB
n12
SFDB
n11
SFDB
n10
SFDB
n9
SFDB
n8
SFDB
n7
SFDB
n6
SFDB
n5
SFDB
n4
SFDB
n3
SFDB
n2
SFDB
n1
SFDB
n0
SFDB3nH
SFDB3nL
After reset:
00H
RW
Address:
SFDB30L FFFFFD46H,
SFDB31L FFFFFD66H
Note
7
6
5
4
3
2
1
0
SFDB3nL
SFDBn7
SFDBn6
SFDBn5
SFDBn4
SFDBn3
SFDBn2
SFDBn1
SFDBn0
After reset:
00H
R/W
Address:
SFDB30H FFFFFD47H,
SFDB31H FFFFFD67H
Note
7
6
5
4
3
2
1
0
SFDB3nH
SFDBn15 SFDBn14 SFDBn13 SFDBn12 SFDBn11 SFDBn10
SFDBn9
SFDBn8
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 ...
Page 1053: ......