r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1300

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 29 Serial I/O with FIFO (SIOF)
29.4.8
The SIOF has one type of interrupt.
(1)
Interrupts can be issued by several sources. Each source is shown as an SIOF status in SISTR.
Table 29.14 lists the SIOF interrupt sources.
Table 29.14 SIOF Interrupt Sources
Whether an interrupt is issued or not as the result of an interrupt source is determined by the SIIER
settings. If an interrupt source is set to 1 and the corresponding bit in SIIER is set to 1, an SIOF
interrupt is issued.
Rev. 1.00 Oct. 01, 2007 Page 1234 of 1956
REJ09B0256-0100
No. Classification
1
2
3
4
5
6
7
8
9
10
11
12
Interrupt Sources
Transmission
Reception
Control
Error
Interrupts
Bit Name
TDREQ
TFEMP
RDREQ
RFFUL
TCRDY
RCRDY
TFUDF
TFOVF
RFOVF
RFUDF
FSERR
SAERR
Function Name
Transmit FIFO transfer
request
Transmit FIFO empty
Receive FIFO transfer
request
Receive FIFO full
Transmit control data
ready
Receive control data
ready
Transmit FIFO
underflow
Transmit FIFO overflow Write to the transmit FIFO is
Receive FIFO overflow Serial data is received while the
Receive FIFO
underflow
FS error
Assign error
Description
The transmit FIFO stores data of
specified size or more.
The transmit FIFO is empty.
The receive FIFO stores data of
specified size or more.
The receive FIFO is full.
The transmit control register is ready
to be written.
The receive control data register
stores valid data.
Serial data transmit timing has arrived
while the transmit FIFO is empty.
performed while the transmit FIFO is
full.
receive FIFO is full.
The receive FIFO is read while the
receive FIFO is empty.
A synchronous signal is input before
the specified bit number has been
passed (in slave mode).
The same slot is specified in both
serial data and control data.