H8SX1663 datasheet(743/1158 Pages) RENESAS

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Section 15 Serial Communication Interface (SCI, IrDA, CRC)

Rev.1.00 Jun. 07, 2006 Page 691 of 1102

REJ09B0294-0100

Bit

Bit Name

Initial

Value

R/W

Description

ACS3

ACS2

ACS1

ACS0

R/W

0000: Average transfer rate generator is not used.

0001: 115.152 kbps of average transfer rate specific to

φ = 10.667 MHz is selected (operated using the

base clock with a frequency 16 times the transfer

rate)

0010: 460.606 kbps of average transfer rate specific to

φ = 10.667 MHz is selected (operated using the

base clock with a frequency 8 times the transfer

rate)

0011: 921.569 kbps of average transfer rate specific to

φ = 16 MHz is selected or 460.784 kbps of

average transfer rate specific to P

φ = 8MHz is

selected (operated using the base clock with a

frequency 8 times the transfer rate)

0100: TMR clock input

This setting allows the TMR compare match

output to be used as the base clock. The table

below shows the correspondence between the

SCI channels and the compare match output.

SCI Channel

TMR Unit

Compare Match

Output

SCI_5

Unit 2

TMO4, TMO5

SCI_6

Unit 3

TMO6, TMO7

0101: 115.196 kbps of average transfer rate specific to

φ = 16 MHz is selected (operated using the base

clock with a frequency 16 times the transfer rate)

0110: 460.784 kbps of average transfer rate specific to

φ = 16 MHz is selected (operated using the base

clock with a frequency 16 times the transfer rate)

0111: 720 kbps of average transfer rate specific to P

φ =

16 MHz is selected (operated using the base clock

with a frequency 8 times the transfer rate)

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