r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 414
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
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Part Number:
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Renesas Electronics America
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Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 19.4
Figure 19.5
19.3.1.2
19.3.1.3
Figure 19.4 shows the Transfer Clock Polarity.
The polarity of the transfer clock is selected with the CKPOL bit in the U0C0 register.
Figure 19.5 shows the Transfer Format.
The transfer format is selected with the UFORM bit in the U0C0 register.
• CKPOL bit in U0C0 register = 0 (transmit data is output at the falling edge and receive data is
• CKPOL bit in U0C0 register = 1 (transmit data is output at the rising edge and receive data is
• UFORM bit in U0C0 register = 0 (LSB first)
• UFORM bit in U0C0 register = 1 (MSB first)
input at the rising edge of the transfer clock)
input at the falling edge of the transfer clock)
CLK
CLK
Note:
Preliminary document
Specifications in this document are tentative and subject to change.
Polarity Select Function
Transfer Clock Polarity
LSB First or MSB First Selection
Transfer Format
RXD
RXD
RXD
RXD
TXD
TXD
TXD
TXD
CLK
CLK
1. The above applies when the CKPOL bit in the U0C0 register = 0 (transmit data is output
(1)
(2)
at the falling edge and receive data is input at the rising edge of the transfer clock).
Notes:
1. The CLK pin level is high when transfer is not performed.
2. The CLK pin level is low when transfer is not performed.
D0
D0
D0
D0
D0
D0
D7
D7
D1
D1
D1
D1
D1
D1
D6
D6
D2
D2
D2
D2
D2
D2
D5
D5
(1)
(1)
D3
D3
D3
D3
D3
D3
D4
D4
D4
D4
D4
D4
D4
D4
D3
D3
D5
D5
D5
D5
D5
D5
D2
D2
D6
D6
D6
D6
D6
D6
D1
D1
19. Serial Interface (UART0)
D7
D7
D7
D7
D7
D7
D0
D0
Page 383 of 725
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