SanDisk INAND, Product Manual

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Chapter 3 – iNAND Interface Description
Revision 3.1 SanDisk iNAND Product Manual
© 2006 SanDisk Corporation 3-2 12/07/06
Pin No. Name Type
1
Description Comment
B5 WPB I Write Protect (Active low) Connect to
VDD
G7 RSTB I Reset (Active low) Connect to
VDD
B2 RDY/BSY NC
B3 SEL_A I Defines I/F Connect to
VDD
B4 SEL_B I Defines I/F Connect to
VDD
G8 FCAP -- Grounded filter capacitor
SanDisk iNAND contains a set of information registers. Register descriptions and SDA
references are provided in
Section 5.0 of the SDA Physical Layer Specification , Version
2.00 .
Table 3-2 iNAND Register Overview
Register Abbreviation Width (in bits) Register Name
CID 128 Card Identification Number
RCA 16 Relative Card Address
CSD 128 Card Specific Data
SCR 64 SD Configuration
OCR 32 Operation Conditions
SSR 512 SD Status
CSR 32 Card status; information about the card status.
3.2 Bus Topologies
SanDisk iNAND products support two communication protocols: SD and SPI. For more
details, refer to
Section 3.5 of the SDA Physical Layer Specification , Version 2.00 . Section
6 of the specification contains a bus circuitry diagram for reference .
3.2.1 SD Bus
For more details, refer to Section 3.5.1 of the SDA Physical Layer Specification, Version
2.00.
3.2.2 SPI Bus
For more details, refer to Section 3.5.2 of the SDA Physical Layer Specification, Version
2.00.