S5PC110_UM
4 NAND FLASH CONTROLLER
4-12
4.3.11 ECC PARITY CONVERSION CODE GUIDE FOR 8/12/16-BIT ECC
The ECC parity conversion codes are there to fix errors, which occur when reading a free page. Free page means
the page erased. The 8/ 12/ 16-bit ECC modules support variable message size for meta data stored in spare
area. Generally, the size of main data (sector) is 512-byte and user should set the corresponding ECC parity
conversion codes as shown in Table below.
ECC type
ECC Parity Conversion Codes
8-bit ECC
Here, 13 byte ECC parity conversion codes
12-bit ECC
Here, 20 byte ECC parity conversion codes
16-bit ECC
Here, 26 byte ECC parity conversion codes
The message size for meta data stored spare area can be different depending on user’s needs. Hence, you can
change the size of meta data by changing MsgLength(NFECCCONF[25:16]) and change ECC parity conversion
codes.
Steps to know ECC parity conversion codes according to the size of message length:
1. Clear all ECC parity conversion registers (NFECCCONECC0 ~ NFECCCONECC6) as all zero.
2. Set all registers for page program
3. Reset InitMECC (NFECCCONT[2] bit as ‘1’
4. Write ‘0xff’ data as much as the size of meta data.
5. After you write data as MsgLength(NFECCCONF[25:16]), the EncodeDone(NFECCSTAT[25]) is set as ‘1’ and
generates the corresponding ECC parity codes.
6. Set ECC parity conversion registers as inverted values of ECC parity codes generated.
For testing if these ECC parity conversion codes work well, repeat step 3 ~ 5. After you set ECC parity
conversion codes, if the generated ECC parity code are all ‘0xff’, then it is working correctly.
Constraints to support free page function:
−
Free page check is for only data area (512-byte)
−
If there is an error during reading a page erased (free page), then free page engine indicates that the
page is not free page.
−
To detect error(s) on free page, user should set corresponding conversion codes.
Summary of Contents for S5PC110
Page 4: ...Section 1 OVERVIEW ...
Page 28: ...Section 2 SYSTEM ...
Page 374: ...S5PC110_UM 4 POWER MANAGEMENT 4 14 4 Let DRAMs exit from self refresh mode ...
Page 473: ...S5PC110_UM 6 BOOTING SEQUENCE 6 10 Figure 6 3 Secure Booting Diagram ...
Page 474: ...Section 3 BUS ...
Page 491: ...S5PC110_UM 2 CORESIGHT Figure 2 4 Structure of the Coresight DAP Components 2 8 ...
Page 506: ...Section 4 INTERRUPT ...
Page 537: ...Section 5 MEMORY ...
Page 540: ......
Page 703: ...Section 6 DMA ...
Page 705: ...List of Figures Figure Title Page Number Number Figure 1 1 Two DMA Tops 1 1 ...
Page 737: ...Section 7 TIMER ...
Page 795: ...Section 8 CONNECTIVITY STORAGE ...
Page 883: ...S5PC110_UM 5 USB2 0 HS OTG 5 7 5 6 3 OTG FIFO ADDRESS MAPPING Figure 5 3 OTG FIFO Mapping ...
Page 1100: ...Section 9 MULTIMEDIA ...
Page 1116: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 5 Figure 1 2 Block Diagram of the Data Flow ...
Page 1125: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 14 1 3 3 2 7 16BPP Display 1555 P1 P2 P3 P4 P5 LCD Panel ...
Page 1145: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 34 Figure 1 10 Blending Decision Diagram ...
Page 1149: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 38 Figure 1 14 Hue Control Block Diagram ...
Page 1184: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 73 ...
Page 1226: ...S5PC110_UM 1 0BDISPLAY CONTROLLER 1 115 ...
Page 1328: ...S5PC110_UM 2 1BCAMERA INTERFACE 2 81 ...
Page 1369: ...S5PC110_UM 4 3BMIPI CSIS 4 2 4 2 BLOCK DIAGRAM Figure 4 1 MIPI CSI System Block Diagram ...
Page 1381: ...S5PC110_UM 4 3BMIPI CSIS 4 14 ...
Page 1431: ...S5PC110_UM 6 5BMULTI FORMAT CODEC 6 39 ...
Page 1471: ...S5PC110_UM 6 5BMULTI FORMAT CODEC 6 79 Figure 6 7 VC1 Parameters ...
Page 1626: ...S5PC110_UM 10 9BHIGH DEFINITION MULTIMEDIA INTERFACE 10 17 Figure 10 10 Channel Status Block ...
Page 1775: ...S5PC110_UM 13 12BG2D 13 6 FIMG 2D FIMG 2D FIMG 2D Figure 13 3 Rotation and Flip Example ...
Page 1798: ...Section 10 AUDIO ETC ...
Page 1803: ...S5PC110_UM 1 AUDIO SUBSYSTEM 1 2 Figure 8 7 Keypad I F Block Diagram 8 8 ...
Page 1951: ...Section 11 SECURITY ...
Page 1954: ...List of Tables Table Title Page Number Number Table 1 1 Security Features of S5PC110 1 2 ...
Page 1964: ...S5PC110_UM 2 ADVANCED CRYPTO ENGINE Figure 2 9 DES Byte Swapping Scheme 2 9 ...
Page 2005: ...Section 12 ETC ...
Page 2039: ...Section 13 SIZE BALL MAP ...