AMC0XXCFLKA Datasheet, PDF (6/42 Pages) Advanced Micro Devices – 1, 2, 4, or 10 Megabyte 5.0 V-only Flash Memory PC Card

Word-Wide Operations
The “C” series cards provide the flexibility to operate on
data in a byte-wide or word-wide format. In word-wide
operations the Low-bytes are controlled with CE1 when
A0 = 0. The High-bytes are controlled with CE2 with
A0 = don’t care.
Table 1. Common Memory Bus Operations
Pins/Operation
REG CE2 CE1 OE WE A0
D8–D15
D0–D7
READ-ONLY
Read (x8) (Note 6)
Read (x8) (Note 7)
Read (x8) (Note 8)
Read (x16) (Note 9)
Output Disable
Standby (Note 3)
READ/WRITE
V_IH
V_IH
V_IL
V_IL
V_IH
V_IL
High-Z
Data Out-Even
V_IH
V_IH
V_IL
V_IL
V_IH
V_IH
High-Z
Data Out-Odd
V_IH
V_IL
V_IH
V_IL
V_IH
X
Data Out-Odd
High-Z
V_IH
V_IL
V_IL
V_IL
V_IH
X
Data Out-Odd Data Out-Even
V_IH
X
X
V_IH
V_IH
X
High-Z
High-Z
X
V_IH
V_IH
X
X
X
High-Z
High-Z
Read (x8) (Notes 2, 6)
Read (x8) (Notes 2, 7)
Read (x8) (Notes 2, 8)
Read (x16) (Notes 2, 9)
Write (x8) (Notes 4, 6)
Write (x8) (Notes 4, 7)
Write (x8) (Notes 4, 8)
Write (x16) (Notes 5, 9)
Output Disable
Standby (Note 3)
V_IH
V_IH
V_IL
V_IL
V_IH
V_IL
High-Z
Data Out-Even
V_IH
V_IH
V_IL
V_IL
V_IH
V_IH
High-Z
Data Out-Odd
V_IH
V_IL
V_IH
V_IL
V_IH
X
Data Out-Odd
High-Z
V_IH
V_IL
V_IL
V_IL
V_IH
X
Data Out-Odd Data Out-Even
V_IH
V_IH
V_IL
V_IH
V_IL
V_IL
High-Z
Data In-Even
V_IH
V_IH
V_IL
V_IH
V_IL
V_IH
High-Z
Data In-Odd
V_IH
V_IL
V_IH
V_IH
V_IL
X
Data In-Odd
High-Z
V_IH
V_IL
V_IL
V_IH
V_IL
X
Data In-Odd Data In-Even
V_IH
X
X
V_IH
V_IL
X
High-Z
High-Z
X
V_IH
V_IH
X
X
X
High-Z
High-Z
Legend:
X = Don’t Care, where Don’t Care is either at V_IL or V_IH level. See DC Characteristics for voltage levels of normal TTL or CMOS
input levels.
Notes:
Volt-only?
1. V_PP pins are not connected in the 5.0 V-Only Flash Memory Card.
2. Manufacturer and device codes may be accessed via a command register write sequence. (Refer to Autoselect Command in
Tables 3 and 4.)
3. Standby current is I_CCS.
4. Refer to Tables 3 and 4 for valid D_IN during a byte write operation.
5. Refer to Table 5 for valid D_IN during a word write operation.
6. Byte access—Even. In this x8 mode, A0 = V_IL outputs or inputs the “even” byte (low byte) of the x16 word on D0–D7.
7. Byte access—Odd. In this x8 mode, A0 = V_IH outputs or inputs the “odd” byte (high byte) of the x16 word on D0–D7. This is
accomplished internal to the card by transposing D8–D15 to D0–D7.
8. Odd byte only access. In this x8 mode, A0 = X outputs or inputs the “odd” byte (high byte) of the x16 word on D8–D15.
9. x16 word accesses present both “even” (low) and “odd” (high) bytes. A0 = X.
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AmC0XXCFLKA
5/4/98