HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 363
HD6417618
Manufacturer Part Number
HD6417618
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417618.pdf
(646 pages)
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14.3.4
SCFTDR is a 16-stage 8-bit FIFO register that stores data for serial transmission. When the SCIF
detects that the transmit shift register (SCTSR) is empty, it moves transmit data written in the
SCFTDR into SCTSR and starts serial transmission. Continuous serial transmission is performed
until there is no transmit data left in SCFTDR. SCFTDR can always be written to by the CPU.
When SCFTDR is full of transmit data (16 bytes), no more data can be written. If writing of new
data is attempted, the data is ignored.
SCFTDR is initialized to undefined value by a power-on reset.
14.3.5
SCSMR is a 16-bit register that specifies the SCIF serial communication format and selects the
clock source for the baud rate generator.
The CPU can always read and write to SCSMR. SCSMR is initialized to H'0000 by a power-on
reset.
Bit
7 to 0
Bit
15 to 8
7
Transmit FIFO Data Register (SCFTDR)
Serial Mode Register (SCSMR)
Bit Name
Bit Name
C/A
Initial
value
Undefined W
Initial
value
All 0
0
R/W
R/W
R
R/W
Description
FIFO for transmits serial data
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Communication Mode
Selects whether the SCIF operates in asynchronous or
synchronous mode.
0: Asynchronous mode
1: Synchronous mode
Section 14 Serial Communication Interface with FIFO (SCIF)
Rev. 6.00 Jun. 12, 2007 Page 331 of 610
REJ09B0131-0600
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