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Queued CSI Data Length Selection Registers (CSIL0, CSIL1)
The CSIL register is an 8-bit register that specifies the active voltage level of the Chip Select pins
and the Queued CSI data length.
This register can be read or written in 1-bit and 8-bit units.
This register can be overwritten only while CTXE = 0 and CRXE = 0 (CSIM register). Write opera-
tion during CTXE = 1 or CRXE = 1 is prohibited.
Initial value is 00H by reset.
Symbol
CSILn
(n = 0, 1)
CSLV3 - CSLV0
CCL3
Caution:
See section 14.3.3 "Data Length Select Function" on page 478 for further explanation on the
data length selection.
474
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Chapter 14 Queued CSI (CSI30, CSI31)
Figure 14-9: Queued CSI Data Length Selection Registers (CSIL0, CSIL1) Format
7
6
5
CSLV3 CSLV2 CSLV1
CSLV0
0
Chip Select signal is active low
1
Chip Select signal is active high
CCL2
CCL1
CCL0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
Rewriting this register is only permitted when CTXE = 0 and CRXE = 0.
4
3
2
1
CCL3
CCL2
CCL1
Chip Select active level selection
Transfer data length
0
Data length is 16 bits
1
0
1
0
Setting prohibited
1
0
1
0
Data length is 8 bits
1
Data length is 9 bits
0
Data length is 10 bits
1
Data length is 11 bits
0
Data length is 12 bits
1
Data length is 13 bits
0
Data length is 14 bits
1
Data length is 15 bits
User's Manual U16702EE3V2UD00
After
0
Address
R/W
reset
FFFFFD49H,
CCL0
R/W 00H
FFFFFD69H
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