Section 12 Serial Communication Interface (SCI)
Rev. 3.00 Sep. 27, 2007 Page 474 of 758
REJ09B0243-0300
12.7.6
Note on Using External Clock in Clock Synchronous Mode
TE and RE must be set to 1 after waiting for four or more cycles of the peripheral operating clock
after the SCK external clock is changed from 0 to 1.
TE and RE must be set to 1 only while the SCK external clock is 1.
12.7.7
Module Standby Mode Setting
SCI operation can be disabled or enabled using the standby control register. The initial setting is
for SCI operation to be halted. Register access is enabled by clearing module standby mode. For
details, see section 19, Power-Down Modes.
Summary of Contents for SH7124 R5F7124
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