r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 473

r5f21346mnfp

Manufacturer Part Number

r5f21346mnfp

Description

Single-chip Mcus Incorporates The R8c Cpu Core

Manufacturer

Renesas Electronics Corporation.

Datasheet

1.R5F21346MNFP.pdf (776 pages)

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R8C/34M Group

R01UH0131EJ0100 Rev.1.00

Jun 21, 2011

Figure 22.4

Figure 22.5

22.3.2

22.3.3

transfer clock polarity.

Figure 22.5 shows the Transfer Format. Use the UFORM bit in the UiC0 (i = 0 to 1) register to select the

transfer format.

Figure 22.4 shows the Transfer Clock Polarity. Use the CKPOL bit in the UiC0 (i = 0 or 1) register to select the

Polarity Select Function

LSB First/MSB First Select Function

Transfer Clock Polarity

Transfer Format

CLKi

• CKPOL bit in UiC0 register = 0 (transmit data output at the falling edge and

• CKPOL bit in UiC0 register = 1 (transmit data output at the rising edge and

RXDi

TXDi

• UFORM bit in UiC0 register = 0 (LSB first)

• UFORM bit in UiC0 register = 1 (MSB first)

receive data input at the rising edge of the transfer clock)

receive data input at the falling edge of the transfer clock)

Notes:

i = 0 or 1

RXDi

CLKi

TXDi

CLKi

TXDi

Note:

(1)

(2)

i = 0 or 1

1. The CLKi pin level is high during no transfer.

2. The CLKi pin level is low during no transfer.

1. The above applies when:

CKPOL bit in UiC0 register = 0 (transmit data output at the falling edge and

receive data input at the rising edge of the transfer clock).

(1)

22. Serial Interface (UARTi (i = 0 or 1))

Page 441 of 740

r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 473

r5f21346mnfp

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