r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 487

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
21.2.2
Notes:
Bits BS0 to BS3 (SSU data transfer length set bits)
After Reset
1. Do not write to bits BS0 to BS3 during operation of the SSU function. When the RE_STIE bit in the SIER register
2. The settings other than the determined values are invalid.
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 000E1h (SSBR_0)
is 0 (data reception disabled) and the TE_NAKIE bit is 0 (data transmission disabled), write to bits BS0 to BS3.
The setting of the SSBR register is valid when the SSU function is used. The setting of the SSBR register is
invalid when the I
As the SSU data transfer length, 8 to 16 bits can be used.
Symbol
Symbol
Bit
BS0
BS1
BS2
BS3
SS Bit Counter Register (SSBR)
—
—
—
—
Preliminary document
Specifications in this document are tentative and subject to change.
b7
—
1
SSU data transfer length set bits
(1, 2)
Nothing is assigned. The write value must be 1. The read value is 1.
2
C bus function is used.
b6
—
1
Bit Name
b5
—
1
b4
—
1
BS3
b3
1
Other than the above: Do not set.
b3 b2 b1 b0
0 0 0 0: 16 bits
1 0 0 0: 8 bits
1 0 0 1: 9 bits
1 0 1 0: 10 bits
1 0 1 1: 11 bits
1 1 0 0: 12 bits
1 1 0 1: 13 bits
1 1 1 0: 14 bits
1 1 1 1: 15 bits
BS2
b2
0
21. Clock Synchronous Serial Interface
BS1
Function
b1
0
BS0
b0
0
Page 456 of 725
R/W
R/W
R/W
R/W
R/W
—