Reset
R
Q
D
SPB1IO
C
Internal data bus
SPTRW
Reset
MD0/SCK
R
Q
D
SPB1DT
C
SCI
SPTRW
Clock output enable signal
Serial clock output signal
Serial clock input signal
Clock input enable signal
Mode setting
register
*
SPTRR
SPTRW: Write to SPTR
SPTRR: Read SPTR
Note: * Signals that set the SCK pin function as internal clock output or external clock input according to
the CKE0 and CKE1 bits in SCSCR1 and the C/ bit in SCSMR1.
Figure 15.2 MD0/SCK Pin
Rev. 6.0, 07/02, page 611 of 986