22. Serial I/O with FIFO (SIOF)
Rev.1.00 Jan. 10, 2008 Page 1118 of 1658
REJ09B0261-0100
22.3.8 Interrupt Enable Register (SIIER) 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.
01234567891011121315 14
0000000000000000
RF
OVFE
RF
UDFE
TF
UDFE
TF
OVFE
FS
ERRE
SA
ERRE
RD
REQE
RF
FULE
RC
RDYE
RD
MAE
TDR
EQE
TFE
MPE
TD
MAE TCR
DYE
R/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/W R/W
BIt:
Initial value:
R/W:
Bit Bit Name
Initial
Value R/W Description
15 TDMAE 0 R/W 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
14 TCRDYE 0 R/W Transmit Control Data Ready Enable
0: Disables interrupts due to transmit control data ready
1: Enables interrupts due to transmit control data ready
13 TFEMPE 0 R/W Transmit FIFO Empty Enable
0: Disables interrupts due to transmit FIFO empty
1: Enables interrupts due to transmit FIFO empty
12 TDREQE 0 R/W Transmit Data Transfer Request Enable
0: Disables interrupts due to transmit data transfer
requests
1: Enables interrupts due to transmit data transfer
requests
11 RDMAE 0 R/W 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