UFD/MMC/SD Controller
Application Note
Flash support limitation and Interconnection Note Ver 0.3
Revision History
Version Date Change compare to previous version Changed by
0.1 2007/09/01 Initial version Andi Chen
0.2 2007/10/25 Add MT29F8G08MAA can be supported with word mode by SK6621AA Andi Chen
0.3 2008/06/10 Not support word mode except TC58NVG3D1D and TC58NVG3D1D_B in SK6626 Michelle Chen
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Skymedi Corporation Confidential 2007/10/25
 UFD/MMC/SD Controller
Application Note
Flash support limitation and Interconnection Note Ver 0.3
1. Flash Supporting Limitation for each Controller
Flash Support Limit Table for the different Controller and different Flash type
Flash Type SLC Flash MLC Flash
Flash
Page Size 2K Page 4K Page 2K Page 4K Page
Bus Ch. Single Dual Single Dual Single Dual Single Dual
SK6612 Yes Yes No No Note1 No No No
SK6621 Yes Yes Yes Yes Yes Note2 Yes No
SK6625 Yes No Yes No Yes No Yes No
Controller
SK6626 Yes No Yes No Yes No Yes Note3
SK6201/ SK6202 Yes Yes No No Note1 No No No
SK6281/ SK6288 Yes Yes Yes Yes Yes Yes Yes No
SK6211/ SK6203 Yes Yes Yes Yes Yes Yes Yes Yes
Note1. AG-AND is the only one type of MLC Flash that can be supported by SK6612, SK6201, and SK6202
Note2. The list of SK6621 that Support MLC Flash with Dual Channel are:
1. K9G4G08U0A
2. K9G8G08U0M
3. K9LAG08U0M
4. K9HBG08U1M
5. HY27UT088G2M
6. MT29F8G08MAA
Note3. The list of SK6626 that Support MLC Flash with Dual Channel are:
1. TC58NVG3D1D
2. TC58NVG3D1D_B
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Skymedi Corporation Confidential 2007/10/25
 UFD/MMC/SD Controller
Application Note
Flash support limitation and Interconnection Note Ver 0.3
2. Two Flash WE Pin Connecting
2-1. Single Channel
In single channel configuration, only FWEL_N will be used and the FWEH_N is no used.
Flash VCC
R 4.7K
FRB_N R/B#
FCE0_N CE#
FCE1_N
FCE2_N
FCE3_N
ALE ALE
CLE CLE
FOE_N RE#
FWEL_N WE#
FWEH_N WP#
FWP_N I/O7
I/O6
FD7 I/O5
SK6621AA
FD6 I/O4
FD5 I/O3
SK6625AA
FD4 I/O2
FD3 I/O1
SK6281AB
FD2 I/O0
FD1
SK6288AA
FD0
FD[7:0]
SK6211AA NANA Type
FD15
FD14
Flash
SK6203AA
FD13
FD12
FD11
FD10
FD9
FD8
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Skymedi Corporation Confidential 2007/10/25
 UFD/MMC/SD Controller
Application Note
Flash support limitation and Interconnection Note Ver 0.3
2-2. Dual Channel
In Dual channel configuration, the FWEL_N connect to Low_Byte Flash array and the FWEH_Lwill should be connected to
High_Byte Flash array.
Flash VCC
R 4.7K
FRB_N R/B# R/B#
FCE0_N CE# CE#
FCE1_N
FCE2_N
FCE3_N
ALE ALE ALE
CLE CLE CLE
FOE_N RE# RE#
FWEL_N WE# WE#
FWEH_N WP# WP#
FWP_N I/O7 I/O7
I/O6 I/O6
FD7 I/O5 I/O5
SK6621AA
FD6 I/O4 I/O4
FD5 I/O3 I/O3
SK6281AB
FD4 I/O2 I/O2
FD3 I/O1 I/O1
SK6288AA
FD2 I/O0 I/O0
FD1
SK6211AA
FD0
FD[7:0]
SK6203AA NANA Type NANA Type
FD15
FD14
Flash Flash
FD13
(Low Byte) (High Byte)
FD12
FD11
FD10
FD9
FD8
FD[15:8]
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Skymedi Corporation Confidential 2007/10/25
 UFD/MMC/SD Controller
Application Note
Flash support limitation and Interconnection Note Ver 0.3
3. The FCE Connecting mapping table of the Controller and Flash Memory
Flash One CE Flash Two CE Flash Four CE Flash
Array Flash Signal Pin Controller Signal Pin Flash Signal Pin Controller Signal Pin Flash Signal Pin Controller Signal Pin
CE0  FCE0_N CE0  FCE0_N CE0  FCE0_N
FCE1_N CE1  FCE1_N CE1  FCE1_N
Flash 1
FCE2_N FCE2_N CE2  FCE2_N
FCE3_N FCE3_N CE3  FCE3_N
FCE0_N FCE0_N
CE0  FCE1_N FCE1_N
Flash 2 Not Allowed
FCE2_N CE0  FCE2_N
FCE3_N CE1  FCE3_N
FCE0_N
FCE1_N
Flash 3
CE0  FCE2_N
FCE3_N
Not Allowed
FCE0_N
FCE1_N
Flash 4
FCE2_N
CE0  FCE3_N
Note1. The most number of Flash parts that can be supported on Single Channel is 4.
Note2. The most number of Flash parts that can be supported on Dual Channel is 8.
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Skymedi Corporation Confidential 2007/10/25