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Chapter 17
Clocked Serial Interface (CSIB)
Preliminary User’s Manual U17566EE1V2UM00
(2)
CBnCTL1 - CSIBn control register 1
CBnCTL1 is an 8-bit register that controls the CSIBn serial transfer operation.
Access
This register can be read/written in 8-bit units.
Address
<base> + 1
H
Initial Value
00
H
. This register is cleared by any reset.
Caution
The CBnCTL1 register can be rewritten only when the
CBnCTL0.CBnPWR bit = 0.
7
6
5
4
3
2
1
0
0
0
0
CBnCKP CBnDAP CBnCKS2 CBnCKS1 CBnCKS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 17-4
CBnCTL1 register contents
Bit position
Bit name
Function
4
3
CBnCKP
CBnDAP
Specification of data transmission/reception timing in relation to SCKBn.
Refer to
Table 17-5
.
2 to 0
CBnCKS[2:0]
Communication clock setting
CBnCKS2 CBnCKS1 CBnCKS0 Communication clock
Mode
0
0
0
f
BRGn
Master
0
0
1
f
PCLK1
Master
0
1
0
f
PCLK2
Master
0
1
1
f
PCLK3
Master
1
0
0
f
PCLK4
Master
1
0
1
f
PCLK5
Master
1
1
0
f
PCLK6
Master
1
1
1
External clock SCKBn
Slave
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