r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1173

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

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The SIOF can separately reset the transmit and receive units by setting the following bits to 1.
• Transmit reset: TXRST bit in SICTR
• Receive reset: RXRST bit in SICTR
Table 22.13 shows the details on initialization upon transmit or receive reset.
Table 22.13 Transmit and Receive Reset
Type
Transmit reset
Receive reset
Transmit/Receive Reset
Objects to be Initialized
Stop transmitting from SIOF_TXD (output according to the value set in
the TXDIZ bit)
Transmit FIFO write pointer
TCRDY, TFEMP, and TDREQ bits in SISTR
TXE bit in SICTR
Stop receiving from SIOF_RXD
Receive FIFO read pointer
RCRDY, RFFUL, and RDREQ bits in SISTR
RXE bit in SICTR
Rev.1.00 Jan. 10, 2008 Page 1143 of 1658
22. Serial I/O with FIFO (SIOF)
REJ09B0261-0100