Figure 18.3 Sck Pin - Hitachi SH7751 Hardware Manual

SCI I/O port block diagrams are shown in figures 18.3 to 18.5.
SCK
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.
Rev. 3.0, 04/02, page 710 of 1064
Reset
R
Q
D
SPB1IO
C
SPTRW
Reset
R
Q
D
SPB1DT
C
SPTRW

Figure 18.3 SCK Pin

Internal data bus
SCI
Clock output enable signal
Serial clock output signal
Serial clock input signal
Clock input enable signal
*