Table of Contents
1. FEATURES ........................................................................................................... 2
2. BLOCK DIAGRAM ............................................................................................... 2
3. PIN SPECIFICATIONS ........................................................................................ 3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Host Interface ...................................................................................................... 3
NAND Flash Memory Interface .......................................................................... 4
Extended Bus Interface ...................................................................................... 5
Other Interfaces .................................................................................................. 5
Power Supply ....................................................................................................... 5
Pin Totals ............................................................................................................. 5
Pin Configuration ................................................................................................ 6
4. FUNCTIONS ........................................................................................................ 7
5. ATA REGISTERS ................................................................................................. 8
5.1
5.2
5.3
5.4
5.5
5.6
Memory Mapped Configuration ......................................................................... 8
I/O Mapped 16 Contiguous Registers Configuration ...................................... 9
Primary I/O Mapped Configuration ................................................................... 9
Secondary I/O Mapped Configuration ............................................................ 10
True IDE Mapped Configuration ...................................................................... 10
ATA Registers .................................................................................................... 11
5.6.1 Data Register (Write/Read) ...................................................................... 11
5.6.2 Error Register (Read Only) ....................................................................... 11
5.6.3 Feature Register (Write Only) ................................................................... 11
5.6.4 Sector Count Register (Write/Read) ........................................................ 11
5.6.5 Sector Number Register (Write/Read) ..................................................... 12
5.6.6 Cylinder Low Register (Write/Read) ......................................................... 12
5.6.7 Cylinder High Register (Write/Read) ........................................................ 12
5.6.8 Drive Head Register (Write/Read) ............................................................ 12
5.6.9 Status Register & Alternate Status Register (Read Only) ........................ 13
5.6.10 Device Control Register (Write Only) ....................................................... 13
5.6.11 Command Register (Write Only) .............................................................. 13
ATA Commands (Standard) .............................................................................. 14
Commands for CompactFlash ......................................................................... 15
Vendor-Unique Commands .............................................................................. 15
Card Information Structure .............................................................................. 15
Identify Information ........................................................................................... 15
Number of Installed Memory Chips and CHS Structure................................ 16
Modes ................................................................................................................. 17
6.7.1 Memory Mapped ..................................................................................... 17
6.7.2 I/O Mapped 16 Contiguous Registers ..................................................... 17
6.7.3 Primary I/O Mapped ................................................................................ 17
6.7.4 Secondary I/O Mapped ........................................................................... 17
6.7.5 True IDE ................................................................................................... 17
6. COMPACTFLASH INTERFACE ........................................................................ 14
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7. CHIP MODES .................................................................................................... 18
7.1 Types .................................................................................................................. 18
7.2 Settings .............................................................................................................. 18
7.3 Pin Assignment.................................................................................................. 18
OKI [ OKI ELECTRONIC COMPONETS ]
