Public Version
Display Subsystem Register Manual
www.ti.com
Bits
Field Name
Description
Type
Reset
15
VC_BUSY
Indicates if previously scheduled activities (packets, BTA)
R
0x0
are still being processed. Forced to 1 by hardware if VC
is enabled. Software should check this bit is 0 before
changing channel configuration.
0x0: No pending operations for this VC
0x1: Pending operations for this VC
14
PP_BUSY
Line buffer busy status.
R
0
0x0: Software is permitted to write a new header for VP
command mode traffic.
0x1: Software is NOT permitted to write a new header for
VP command mode traffic.
13:10
RESERVED
Write 0s for future compatibility.
RW
0x00
Reads returns 0.
9
MODE_SPEED
Selection of the mode. This bit is ignored by hardware
RW
0x0
when video mode is selected.
0x0: Low-power mode (CMOS) is used to send short and
long packets to the peripheral.
0x1: High speed mode (SLVS) is used to send short and
long packets to the peripheral.
8
ECC_TX_EN
Enables the ECC generation for the transmit header
RW
0x0
(short and long packets).
0x0: Disabled
0x1: Enabled
7
CS_TX_EN
Enables the checksum generation for the transmit
RW
0x0
payload (long packet only).
0x0: Disabled. The value 0x00 is used.
0x1: Enabled. The Check-sum value is calculated by HW.
6
BTA_EN
Send the bus turn around to the peripheral. It can be
RW
0x0
used when the automatic mode is enabled
(BTA_SHORT_EN=1 or/and BTA_LONG_EN=1). In that
case only one BTA is sent to the peripheral. The manual
mode allows users to define for which packets, the turn
around is required for example getting acknowledge from
the peripheral.
0x0: READS: BTA generation is completed. It is reset by
HW when it is completed.
WRITES: Cancellation of the BTA generation (not
guarantee since it could already on going, must not be
used).
0x1: READS: BTA generation has been requested by
user (it could be on going but not completed).
WRITES: Request for BTA generation.
5
TX_FIFO_NOT_EMPTY
FIFO status
R
0x0
0x0: The TX FIFO is empty (the FIFO does not contain
any data for the VC)
0x1: The TX FIFO is not empty (the FIFO contains at
least one byte for the VC)
4
MODE
Selection of the mode
RW
0x0
0x0: Command mode.
0x1: Video mode.
3
BTA_LONG_EN
Enables the automatic bus turn-around after completion
RW
0x0
of each long packet transmission.
0x0: Disabled
0x1: Enabled
2
BTA_SHORT_EN
Enables the automatic bus turn-around after completion
RW
0x0
of each short packet transmission.
0x0: Disabled
0x1: Enabled
1944
Display Subsystem
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...