Public Version
McSPI Register Manual
www.ti.com
Bits
Field Name
Description
Type
Reset
0x0:
Writing 0 into this bit drives the spin_csx line low for
channel x when
[6] EPOL = 0, and
drives it high when
[6] EPOL = 1.
0x1:
Writing 1 into this bit drives the spim_csx line high for
channel x when
[E6] EPOL = 0, and
drives it low when
[6] EPOL = 1.
19
TURBO
Turbo mode
RW
0x0
0x0:
Turbo is deactivated (recommended for single SPI word
transfer)
0x1:
Turbo is activated to maximize the throughput for
multi-SPI word transfers.
18
IS
Input select
RW
0x1
0x0:
Data Line 0 (spim_somi) selected for reception
0x1:
Data Line 1 (spim_simo) selected for reception
17
DPE1
Transmission enable for data line 1 (spim_simo)
RW
0x1
0x0:
Data Line 1 (spim_simo) selected for transmission
0x1:
No transmission on data Line 1 (spim_simo)
16
DPE0
Transmission enable for data line 0 (spim_somi)
RW
0x0
0x0:
Data Line 0 (spim_somi) selected for transmission
0x1:
No transmission on data Line 0 (spim_somi)
15
DMAR
DMA Read request
RW
0x0
The DMA Read request line is asserted when the channel is
enabled and a new data is available in the receive register of the
channel.
The DMA Read request line is deasserted on read completion of
the receive register of the channel.
0x0:
DMA read request disabled
0x1:
DMA read request enabled
14
DMAW
DMA Write request.
RW
0x0
The DMA write request line is asserted when the channel is
enabled and the
register of the channel is empty.
The DMA write request line is deasserted on load completion of
the
register of the channel.
0x0:
DMA write request disabled
0x1:
DMA write request enabled
13:12
TRM
Transmit/receive modes
RW
0x0
0x0:
Transmit and receive mode
0x1:
Receive-only mode
0x2:
Transmit-only mode
0x3:
Reserved
11:7
WL
SPI word length
RW
0x00
0x0:
Reserved
0x1:
Reserved
0x2:
Reserved
0x3:
The SPI word is 4-bit long
0x4:
The SPI word is 5-bit long
0x5:
The SPI word is 6-bit long
0x6:
The SPI word is 7-bit long
0x7:
The SPI word is 8-bit long
0x8:
The SPI word is 9-bit long
0x9:
The SPI word is 10-bit long
0xA:
The SPI word is 11-bit long
3046
Multichannel SPI
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 ...