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R01UH0336EJ0102 Rev.1.02
Page 1204 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 21 Clocked Serial Interface G (CSIG)
(8)
CSIGnTX0W - CSIG Transmission Register 0 for Word Access
This register stores the transmission data. It has to be used when the extended
data length function is enabled (CSIGnCTL1.SCIGnEDLE = 1).
Access
This register can be read/written in 32-bit units.
Address
<CSIGn_base1> + 84
H
Initial value
0000 0000
H
This register is initialized by a reset from any source.
Caution
Writing to this register is forbidden when CSIGnCTL0.CSIGnTXE = 0 and
CSIGnCTL0.CSIGnRXE = 0.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
0
0
CSIGn
EDL
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CSIGnTX[15:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 21-16
CSIGnTX0W Register Contents
Bit Position
Bit Name
Function
29
CSIGnEDL
Specifies the extended data length configuration:
0: Normal operation
1: Extended data length activated
The data is transmitted as 16-bit data.
Caution:
This bit can only be set if CSIGnCTL1.CSIGnEDLE = 1. It is automatically
cleared if CSIGnCTL1.CSIGnEDLE is cleared.
15 to 0
CSIGn
TX[15:0]
Data to be transmitted
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