A29400B Series

PRELIMINARY

(June, 2016, Version 0.0)

12

AMIC Technology, Corp.

Table 5. A29400B Command Definitions

Bus Cycles (Notes 2 - 4)

First

Second

Third

Fourth

Fifth

Sixth

Command

Sequence

(Note 1)

Addr Data

Addr Data

Addr Data Addr

Data

Addr Data Addr Data

Read (Notes 5, 6)

1

RA

RD

Reset (Note 6)

1

XXX

F0

Word

555

2AA

555

Manufacturer ID

Byte

4

AAA

AA

555

55

AAA

90

X00

37

Word

555

2AA

555

X01

B3B0

Device ID,

Top Boot Block

Byte

4

AAA

AA

555

55

AAA

90

X02

B0

Word

555

2AA

555

X01

B331

Device ID,

Bottom Boot Block

Byte

4

AAA

AA

555

55

AAA

90

X02

31

Word

555

2AA

555

X03

Continuation ID

Byte

4

AAA

AA

555

55

AAA

90

X06

7F

XX00

Word

555

2AA

555

(SA)

X02

XX01

00

Sector Protect Verify

(Note 8)

Byte

4

AAA

AA

555

55

AAA

90

(SA)

X04

01

Word

555

2AA

555

Program

Byte

4

AAA

AA

555

55

AAA

A0

PA

PD

Word

555

2AA

555

555

2AA

555

Chip Erase

Byte

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

AAA

10

Word

555

2AA

555

555

2AA

Sector Erase

Byte

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

SA

30

Erase Suspend (Note 9)

1

XXX

B0

Erase Resume (Note 10)

1

XXX

30

Legend:

X = Don't care

RA = Address of the memory location to be read.

RD = Data read from location RA during read operation.

PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the

whichever happens later.

PD = Data to be programmed at location PA. Data latches on the rising edge of

SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A17 - A12 select a unique sector.

Note:

1.

See Table 1 for description of bus operations.

2.

All values are in hexadecimal.

3.

Except when reading array or autoselect data, all bus cycles are write operation.

4.

Address bits A17 - A11 are don't cares for unlock and command cycles, unless SA or PA required.

5.

No unlock or command cycles required when reading array data.

6.

(while the device is providing status data).

7.

The fourth cycle of the autoselect command sequence is a read cycle.

8.

The data is 00h for an unprotected sector and 01h for a protected sector. See "Autoselect Command Sequence" for more information.

9.

The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode.

10. The Erase Resume command is valid only during the Erase Suspend mode.