Manual

220 Series Commercial Grade CF Product Manual v2.0Cactus Technologies

Initial Value of

Written by Host

Final

“C” Bit

Comments

“C” Bit “M” Bit

0 X 0 0

Unchanged

1 X 0 1

Unchanged

X 0 1 0

Cleared by Host

X 1 1 1

Set by Host

Table 3-14. Pin Replacement Changed Bit/Mask Bit Values

3.4.5. Socket and Copy Register

(Address 206h in Attribute Memory)

This register contains additional conguration information. This register is always written by the

system before writing the card’s Conguration Index Register.

Operation D7 D6 D5 D4 D3 D2 D1 D0

Read

Reserved 0 0 Drive # 0 0 0 0

Write

0 0 0 Drive # (0) X X X X

Table 3-15. Socket and Copy Register Organization

Reserved This bit is reserved for future standardization. This bit must be set to zero (0)

by the software when the register is written.

Drive # This bit indicates the drive number of the card if twin card conguration

is supported.

X The socket number is ignored by the CompactFlash Memory Card.