Datasheet

Section 12 Serial Communication Interface
Rev.7.00 Dec. 24, 2008 Page 386 of 698
REJ09B0074-0700
Bit Bit Name Initial Value R/W Description
2
1
0
ACS2
ACS1
ACS0
0
0
0
R/W
R/W
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)
11××: 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.