CHAPTER 11 SERIAL INTERFACE FUNCTION
User’s Manual U15109EJ3V0UD
369
11.4.5 Output pins
(1) SCKn pin
When CSIn operation is disabled (CSIEn bit of CSIMn register = 0), the SCKn pin output status is as follows (n
= 5, 6).
Table 11-4. SCKn Pin Output Status
CKPn
CKSn2
CKSn1
CKSn0
SCKn Pin Output
0
don’t care
don’t care
don’t care
Fixed to high level
1
1
1
Fixed to high level
1
Other than above
Fixed to low level
Remarks 1.
n = 5, 6
2.
When any of bits CKPn and CKSn2 to CKSn0 of the CSICKn register is overwritten, the
SCKn pin output changes.
(2) SOn pin
When CSIn operation is disabled (CSIEn bit of CSIMn register = 0), the SOn pin output status is as follows (n =
5, 6).
Table 11-5. SOn Pin Output Status
TRMDn
DAPn
AUTOn
CCLn
DIRn
SOn Pin Output
0
don’t care
don’t care
don’t care
don’t care
Fixed at low level
0
don’t care
don’t care
don’t care
SO latch value (low level)
0
SOTB7 value
0
1
SOTB0 value
0
SOTB15 value
0
1
1
SOTB0 value
0
SOTBF7 value
0
1
SOTBF0 value
0
SOTBF15 value
1
1
1
1
1
SOTBF0 value
Remarks 1.
n = 5, 6
2.
When any of bits TRMDn, CCLn, DIRn, and AUTOn of the CSIMn register or DAPn bit of the
CSICKn register is overwritten, the SOn pin output changes.
3.
SOTBm: Bit m of SOTBn register (m = 0, 7, 15)
4.
SOTBFm: Bit m of SOTBFn register (m = 0, 7, 15)