P
U
size0
size1
“Protected” data
Unused data
bch_blk_ptr
inactive
Rd/Wr/
SW
0
Mode
Size0 Size1
P
U
Manual mode
to ECC divider
M0
unused
gpmc-032
Public Version
www.ti.com
General-Purpose Memory Controller
Figure 10-32. Manual Mode Sequence and Mapping
Section processing sequence:
•
One time with buffer
–
size0 nibbles of data, processing ON
–
size1 nibbles of unused data, processing OFF
Checksum: size0 + size1 nibbles must fit in a whole number of accesses.
10.1.5.14.3.2.2.5 Mode 0x1
Page processing sequence:
•
Repeat with buffer 0 to S-1
–
512-byte data, processing ON
•
Repeat with buffer 0 to S-1
–
size0 nibbles spare, processing ON
–
size1 nibbles spare, processing OFF
Checksum: Spare area size (nibbles) = S - (size0 + size1)
10.1.5.14.3.2.2.6 Mode 0xA (10)
Page processing sequence:
•
Repeat with buffer 0 to S-1
–
512-byte data, processing ON
•
Repeat with buffer 0 to S-1
–
size0 nibbles spare, processing ON
–
1 nibble pad spare, processing OFF
–
size1 nibbles spare, processing OFF
Checksum: Spare area size (nibbles) = S - (size0 + 1 + size1)
10.1.5.14.3.2.2.7 Mode 0x2
Page processing sequence:
•
Repeat with buffer 0 to S-1
–
512-byte data, processing ON
•
Repeat with buffer 0 to S-1
–
size0 nibbles spare, processing OFF
–
size1 nibbles spare, processing ON
Checksum: Spare area size (nibbles) = S - (size0 + size1)
10.1.5.14.3.2.2.8 Mode 0x3
Page processing sequence:
2173
SWPU177N – December 2009 – Revised November 2010
Memory Subsystem
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 ...