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Display Subsystem Register Manual
Table 7-432. DSI_VCn_IRQENABLE
Address Offset
0x0000 011C+ (n* 0x20)
Index
n = 0 to 3
Physical Address
0x4804 FD1C + (n* 0x20)
Instance
DSI_PROTOCOL_ENGINE
Description
INTERRUPT ENABLE REGISTER - Virtual channel This register regroups all the events related to VC.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
CS_IRQ_EN
BTA_IRQ_EN
FIFO_TX_UDF_IRQ_EN
FIFO_TX_OVF_IRQ_EN
FIFO_RX_OVF_IRQ_EN
PACKET_SENT_IRQ_EN
PP_BUSY_CHANGE_IRQ_EN
ECC_CORRECTION_IRQ_EN
ECC_NO_CORRECTION_IRQ_EN
Bits
Field Name
Description
Type
Reset
31:9
RESERVED
Write 0s for future compatibility.
RW
0x000000
Reads returns 0.
8
PP_BUSY_CHANGE_
Video port ping-pong buffer busy.
RW
0
IRQ_EN
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
7
FIFO_TX_UDF_IRQ_EN
FIFO underflow enable. The FIFO used on the slave port for
RW
0x0
buffering the data received on the OCP slave port for the VC
has underflowed which means that the data for the current
packet have not been received in time since the transfer of
the packet are already started (transfer started since the
packet size is bigger than space allocated in the FIFO).
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
6
ECC_NO_CORRECTION_
ECC error (short and long packets). No correction of the
RW
0x0
IRQ_EN
header because of more than 1-bit error.
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
5
BTA_IRQ_EN
Virtual channel -Bus turn around reception
RW
0x0
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
4
FIFO_RX_OVF_IRQ_EN
FIFO overflow enable. The FIFO used on the slave port for
RW
0x0
buffering the data received on the DSI link for the VC has
overflowed.
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
3
FIFO_TX_OVF_IRQ_EN
FIFO overflow enable. The FIFO used on the slave port for
RW
0x0
buffering the data received on the OCP slave port for the VC
has overflowed.
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
2
PACKET_SENT_IRQ_EN
Indicates that a packet has been sent. It is used when BTA
RW
0x0
manual mode is used.
0x0: Event is masked
0x1: Event generates an interrupt when it occurs
1951
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
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