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Section 13 Serial Communication Interface
For smart card interface (SMIF bit in SCMR set to 1): These bits, together with the GM bit in
SMR, determine whether the SCK pin is used for generic input/output or as the serial clock output
pin.
SMR
Bit 1
Bit 0
GM
CKE1
CKE0 Description
0
0
0
0
0
1
1
0
0
1
0
1
1
1
0
1
1
1
Rev. 4.00 Jan 26, 2006 page 492 of 938
REJ09B0276-0400
SCK pin available for generic input/output
SCK pin used for clock output
SCK pin output fixed low
SCK pin used for clock output
SCK pin output fixed high
SCK pin used for clock output
(Initial value)
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