H8SSLASH2218 datasheet(434/750 Pages) RENESAS

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Section 12 Serial Communication Interface

Rev.6.00 Jun. 03, 2008 Page 386 of 698

REJ09B0074-0600

Bit

Bit Name Initial Value

R/W

Description

ACS2

ACS1

ACS0

R/W

0101: 115.196 kbps average transfer rate (for

φ = 16 MHz

only) is selected (SCI_0 operates on base clock with

frequency of 16 times transfer rate)

0110: 460.784 kbps average transfer rate (for

φ = 16 MHz

only) is selected (SCI_0 operates on base clock with

frequency of eight times transfer rate)

0111: 720 kbps average transfer rate (for

φ = 16 MHz only)

is selected (SCI_0 operates on base clock with

frequency of eight times transfer rate)

1000: 115.132 kbps average transfer rate (for

φ = 24 MHz

only) is selected* (SCI_0 operates on base clock

with frequency of 16 times transfer rate)

1001: 460.526 kbps average transfer rate (for

φ = 24 MHz

only) is selected* (SCI_0 operates on base clock

with frequency of 16 times transfer rate)

1010: 720 kbps average transfer rate (for

φ = 24 MHz only)

is selected* (SCI_0 operates on base clock with

frequency of eight times transfer rate)

1011: 921.053 kbps average transfer rate (for

φ = 24 MHz

only) is selected* (SCI_0 operates on base clock

with frequency of eight times transfer rate)

××: Reserved (Setting prohibited)

Note: * The average transfer rate select functions for 24 MHz only (ACS3 to ACS0 = B'10XX) are

not supported by the E6000 emulator.

12.3.10

Serial Extended Mode Register B_0 (SEMRB_0)

SEMRB_0 enables clock source selection with the combination of SEMRA_0, automatic transfer

rate setting, and control of port 1 pins (P16, P14, P12, and P10) at the transfer clock generation by

TPU.

Note:

SEMRB_0 is not supported by the E6000 emulator.

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