R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 821

• Manufacturer Part Number: R0K572030S000BE
• Description: KIT DEV FOR SH7203
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572030S000BE

• Contents: CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
• Silicon Manufacturer: Renesas
• Kit Contents: Board
• Silicon Family Name: SH7203
• Silicon Core Number: R5S72030W200FP
• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Mcu Supported Families: SH7203
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SH7203
• Lead Free Status / Rohs Status: Compliant

Section 15 Serial Communication Interface with FIFO (SCIF)
15.6.7
Selection of Base Clock in Asynchronous Mode
In this LSI, when asynchronous mode is selected, the base clock frequency within a bit period can
be set to the frequency 16 or 8 times the bit rate by setting the ABCS bit in SCEMR.
Note that, however, if the base clock frequency 8 times the bit rate is used, receive margin is
decreased as calculated using equation 1 in section 15.6.6, Receive Data Sampling Timing and
Receive Margin (Asynchronous Mode).
If the desired bit rate can be set simply by setting SCBRR and the CKS1and CKS0 bits in
SCSMR, it is recommended to use the base clock frequency within a bit period 16 times the bit
rate (by setting the ABCS bit in SCEMR to 0). If an internal clock is selected as a clock source
and the SCK pin is not used, the bit rate can be increased without decreasing receive margin by
selecting double-speed mode for the baud rate generator (setting the BGDM bit in SCEMR to 1).
Rev. 3.00 Sep. 28, 2009 Page 789 of 1650
REJ09B0313-0300