R01UH0822EJ0100 Rev.1.00
Page 625 of 1041
Jul 31, 2019
RX13T Group
23. Serial Communications Interface (SCIg, SCIh)
This bit indicates mode fault errors.
In a multi-master configuration, determine the mode fault error occurrence by reading the MFF flag.
[Setting condition]
Input on the SSn# pin being at the low level during master operation in simple SPI mode (SSE bit = 1 and MSS bit
= 0)
[Clearing condition]
Writing 0 to the bit after it was read as 1
CKPOL Bit (Clock Polarity Select)
This bit selects the polarity of the clock signal output through the SCKn pin. Refer to
for details.
Set the bit to 0 in other than simple SPI mode and clock synchronous mode.
This bit selects the phase of the clock signal output through the SCKn pin. Refer to
Set the bit to 0 in other than simple SPI mode and clock synchronous mode.
23.2.20
Extended Serial Module Enable Register (ESMER)
ESME Bit (Extended Serial Mode Enable)
When the ESME bit is 1, the facilities of the extended serial mode control section are enabled.
When the ESME bit is 0, the extended serial mode control section is initialized.
Note 1. Operation is only possible with PCLK selected.
Address(es): SCI12.ESMER 0008 B320h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
ESME
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
Extended Serial Mode
Enable
0: The extended serial mode is disabled.
1: The extended serial mode is enabled.
R/W
b7 to b1
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
Table 23.26
Settings of the ESME Bit and Timer Operation Mode
ESME Bit
Timer Mode
Break Field Low Width Determination Mode
Break Field Low Width Output Mode
0
Not available
Not available
1
Available
Available
Available