CHAPTER 11 SERIAL INTERFACE FUNCTION
User’s Manual U14359EJ4V0UM
395
(2/2)
Bit position
Bit name
Function
Input Clock Selection
Specifies the input clock.
CKSn2
CKSn1
CKSn0
Input clock
Mode
0
0
0
f
XX
/2
15
Master mode
0
0
1
f
XX
/2
14
Master mode
0
1
0
f
XX
/2
12
Master mode
0
1
1
f
XX
/2
10
Master mode
1
0
0
f
XX
/2
8
Master mode
1
0
1
f
XX
/2
6
Master mode
1
1
0
f
XX
/2
4
Master mode
1
1
1
External clock (SCKn)
Slave mode
2 to 0
CKSn2 to
CKSn0
(n = 0 to 2)
Remark
f
XX
: Internal system clock
(a) Baud rate
Baud Rate (bps)
CKSn2
CKSn1
CKSn0
50 MHz
Operation
40 MHz
Operation
33 MHz
Operation
25 MHz
Operation
20 MHz
Operation
0
0
0
1,526
1,221
1,007
763
610
0
0
1
3,052
2,441
2,014
1,526
1,221
0
1
0
12,207
9,766
8,057
6,104
4,883
0
1
1
48,828
39,063
32,227
24,414
19,531
1
0
0
195,313
156,250
128,906
97,656
78,125
1
0
1
781,250
625,000
515,625
390,625
312,500
1
1
0
3,125,000
2,500,000
2,062,500
1,562,500
1,250,000