r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 516

• 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
Figure 21.14
SISR register
SISR register
SISR register
SISR register
• CPHS = 0 (data change at odd edge), CPOS_WAIT = 0 (high when clock stops),
TDRE bit in
TEND bit in
• CPHS = 1 (data change at even edge), CPOS_WAIT = 0 (high when clock stops),
TDRE bit in
TEND bit in
processing
processing
MLS = 0 (MSB-first transfer), and BS3 to BS0 = 1000b (8 bits)
MLS = 0 (MSB-first transfer), and BS3 to BS0 = 1000b (8 bits)
Program
Program
(output)
(output)
SSCK
SSCK
SSO
SCS
SCS
SSO
Preliminary document
Specifications in this document are tentative and subject to change.
Operation Example during Data Transmission (4-Wire Bus Communication Mode,
8-Bit SSU Data Transfer Length)
Write data to SITDR register
Write data to SITDR register
TXI interrupt
request generated
TXI interrupt
request generated
b7
b7
b6
b6
One frame
One frame
b1
TXI interrupt request generated
b1
TXI interrupt request generated
b0
b0
BS0 to BS3: Bits in SSBR register
CPHS, CPOS_WAIT, MLS: Bits in SIMR1 register
b7
b7
21. Clock Synchronous Serial Interface
TEI interrupt request generated
TEI interrupt request generated
One frame
One frame
b1
b1
High impedance
High impedance
b0
b0
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