r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1148

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

22. Serial I/O with FIFO (SIOF)
22.3.8
SIIER is a 16-bit readable/writable register that enables the issuance of SIOF interrupts. When
each bit in this register is set to 1 and the corresponding bit in SISTR is set to 1, the SIOF issues
an interrupt.
Rev.1.00 Jan. 10, 2008 Page 1118 of 1658
REJ09B0261-0100
Initial value:
Bit
15
14
13
12
11
R/W:
BIt:
Interrupt Enable Register (SIIER)
Bit Name
TDMAE
TCRDYE
TFEMPE
TDREQE
RDMAE
MAE
R/W
15
TD
0
R/W
TCR
DYE
14
0
R/W
MPE
TFE
13
0
Initial
Value
0
0
0
0
0
R/W
EQE
TDR
12
0
R/W
MAE
RD
R/W
R/W
R/W
R/W
R/W
R/W
11
0
RDYE
R/W
RC
10
0
Description
Transmit Data DMA Transfer Request Enable
Transmits an interrupt as a CPU interrupt or a DMA
transfer request when the TDREQE bit is 1.
0: Used as a CPU interrupt
1: Used as a DMA transfer request to the DMAC
Transmit Control Data Ready Enable
0: Disables interrupts due to transmit control data ready
1: Enables interrupts due to transmit control data ready
Transmit FIFO Empty Enable
0: Disables interrupts due to transmit FIFO empty
1: Enables interrupts due to transmit FIFO empty
Transmit Data Transfer Request Enable
0: Disables interrupts due to transmit data transfer
1: Enables interrupts due to transmit data transfer
Receive Data DMA Transfer Request Enable
Transmits an interrupt as a CPU interrupt or a DMA
transfer request when the RDREQE bit is 1.
0: Used as a CPU interrupt
1: Used as a DMA transfer request to the DMAC
FULE
R/W
requests
requests
RF
9
0
REQE
R/W
RD
8
0
R/W
—
7
0
R/W
—
6
0
ERRE
R/W
SA
5
0
ERRE
R/W
FS
4
0
OVFE
R/W
TF
3
0
UDFE
R/W
TF
2
0
UDFE
R/W
RF
1
0
OVFE
R/W
RF
0
0