HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 479

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

16.3.4
SCFTDR is an 8-bit 64-stage FIFO data register that stores data for serial transmission (transmit
FIFO).
If SCTSR is empty when transmit data is written to SCFTDR, the SCIF transfers the transmit data
written in SCFTDR to SCTSR and starts serial transmission.
SCFTDR is a write-only register, and cannot be read by the CPU.
The next data cannot be written when SCFTDR is filled with 64 bytes of transmit data. Data
written in this case is ignored.
Bit
7 to 0
Bit Name
SCFTD7 to SCFTD0
Transmit FIFO Data Register (SCFTDR)
Initial
Value
Undefined W
R/W
Description
Serial Transmit Data FIFO
Rev. 1.00, 02/04, page 441 of 804