14

AmMC0XXA

PR EL IMIN AR Y

Table 6.

Even Byte Command Definitions for 2 Mbyte Cards

Note for Table 6: During even (low) byte accesses, CEL# = 0, CEH# = 1, and address is applied to Memory Device 0 (S0) only.

Table 7.

Odd Byte Command Definitions for 2 Mbyte Cards

Note for Table 7: During odd (high) byte accesses, CEL#= 1, CEH# = 0, and address is applied to Memory Device 1 (S1) only.

Legend for Tables 6 and 7:

X = Don’t care

RA = Address of the memory location to be read.

RW = Data read from location RA during read operation.

PA = Address of the memory location to be programmed.

Addresses are latched on the falling edge of the WE# pulse.

PW = Data to be programmed at location PA. Data is latched on

the rising edge of WE#.

SA = Address of the sector to be erased. Refer to Table 11 for

sector addresses.

Notes for Tables 6 and 7:

1. Write protect must not be enabled for proper operation of all

commands. No command required for reading array data,

and can thus be done with write protect enabled.

2. For host-to-card address bit connections, see Figure 2.

3. All values are in hexadecimal.

4. The last cycle of an autoselect command sequence is a read

operation.

5. Address bits A19–A11 = X = Don’t Care for all commands

except for Read Address (RA), Program Address (PA), and

Sector Address (SA).

6. The Erase Suspend command is valid only during a sector

erase operation. Refer to “Sector Erase Suspend”.

7. The Erase Resume command is valid only during the Erase

Suspend mode.

8. See Table 4 for read/write modes.

Embedded Command Sequence

(Note 1)

Bus Cycles (Notes 2–9)

First

Second

Third

Fourth

Fifth

Sixth

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read

1

RA

RD

Reset

1

XXX

XXF0

Autoselect Manufacturer ID (Note 4)

4

555

XXAA

2AA

XX55

555

XX90

X00

XX01

Autoselect Device ID (Note 4)

4

555

XXAA

2AA

XX55

555

XX90

X01

XXD5

Byte Write

4

555

XXAA

2AA

XX55

555

XXA0

PA

PD

Device Erase

6

555

XXAA

2AA

XX55

555

XX80

555

XXAA

2AA

XX55

555

XX10

Sector Erase

6

555

XXAA

2AA

XX55

555

XX80

555

XXAA

2AA

XX55

SA

XX30

Sector Erase Suspend (Note 6)

1

XXX

XXB0

Sector Erase Resume (Note 7)

1

XXX

XX30

Embedded Command Sequence

(Note 1)

Bus Cycles (Notes 2–9)

First

Second

Third

Fourth

Fifth

Sixth

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read

1

RA

RD

Reset

1

XXX

F0XX

2AA

55XX

555

F0XX

RA

RD

Autoselect Manufacturer ID (Note 4)

4

555

AAXX

2AA

55XX

555

90XX

X00

01XX

Autoselect Device ID (Note 4)

4

555

AAXX

2AA

55XX

555

90XX

X01

D5XX

Byte Write

4

555

AAXX

2AA

55XX

555

A0XX

PA

PDXX

Device Erase

6

555

AAXX

2AA

55XX

555

80XX

555

AAXX

2AA

55XX

555

10XX

Sector Erase

6

555

AAXX

2AA

55XX

555

80XX

555

AAXX

2AA

55XX

SA

30XX

Sector Erase Suspend (Note 6)

1

XXX

B0XX

Sector Erase Resume (Note 7)

1

XXX

30XX