14-19
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
SPIA Ch.
n
Interrupt Enable Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
SPIA_
n
INTE
15
–
8
–
0x00
–
R
–
7
–
4
–
0x0
–
R
3
OEIE
0
H0
R/W
2
TENDIE
0
H0
R/W
1
RBFIE
0
H0
R/W
0
TBEIE
0
H0
R/W
Bits 15
–
4
Reserved
Bit 3
OEIE
Bit 2
TENDIE
Bit 1
RBFIE
Bit 0
TBEIE
These bits enable SPIA interrupts.
1 (R/W): Enable interrupts
0 (R/W): Disable interrupts
The following shows the correspondence between the bit and interrupt:
SPIA_
n
INTE.OEIE bit:
Overrun error interrupt
SPIA_
n
INTE.TENDIE bit: End-of-transmission interrupt
SPIA_
n
INTE.RBFIE bit: Receive buffer full interrupt
SPIA_
n
INTE.TBEIE bit:
Transmit buffer empty interrupt
SPIA Ch.
n
Transmit Buffer Empty DMA Request Enable Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
SPIA_
n
TBEDMAEN
15
–
0
TBEDMAEN[15:0]
0x0000
H0
R/W
–
Bits 15
–
0
TBEDMAEN[15:0]
These bits enable the SPIA to issue a DMA transfer request to the corresponding DMA
channel (Ch.0
–
Ch.15) when a transmit buffer empty state has occurred.
1 (R/W): Enable DMA transfer request
0 (R/W): Disable DMA transfer request
Each bit corresponds to a DMA controller channel. The high-order bits for the
unimplemented channels are ineffective.
SPIA Ch.
n
Receive Buffer Full DMA Request Enable Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
SPIA_
n
RBFDMAEN
15
–
0
RBFDMAEN[15:0]
0x0000
H0
R/W
–
Bits 15
–
0
RBFDMAEN[15:0]
These bits enable the SPIA to issue a DMA transfer request to the corresponding DMA
channel (Ch.0
–
Ch.15) when a receive buffer full state has occurred.
1 (R/W): Enable DMA transfer request
0 (R/W): Disable DMA transfer request
Each bit corresponds to a DMA controller channel. The high-order bits for the
unimplemented channels are ineffective.
Summary of Contents for S1C31D50
Page 461: ...25 1 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 25 Package TQFP12 48PIN ...
Page 462: ...25 2 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP13 64PIN ...
Page 463: ...25 3 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 TQFP14 80PIN ...
Page 464: ...25 4 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP15 100PIN ...