A29010B datasheet(7/30 Pages) AMICC

7 / 30 page

A29010B Series

PRELIMINARY

(June, 2016, Version 0.0)

AMIC Technology, Corp.

Autoselect Mode

The autoselect mode provides manufacturer and device

identification,

and

sector

protection

verification,

through

identifier codes output on I/O7 - I/O0. This mode is primarily

intended for programming equipment to automatically match a

device to be programmed with its corresponding programming

algorithm. However, the autoselect codes can also be accessed

in-system through the command register.

When using programming equipment, the autoselect mode

requires VID (9.5V to 11.5 V) on address pinA9. Address pins

A6, A1, and A0 must be as shown in Autoselect Codes (High

Voltage Method) table. In addition, when verifying sector

protection, the sector address must appear on the appropriate

highest order address bits. Refer to the corresponding Sector

Address Tables. The Command Definitions table shows the

remaining address bits that are don't care. When all necessary

bits have been set as required, the programming equipment

may then read the corresponding identifier code on I/O7 -

I/O0.To access the autoselect codes in-system, the host system

can issue the autoselect command via the command register,

as shown in the Command Definitions table. This method does

not require VID. See "Command Definitions" for details on using

the autoselect mode.

Table 3. A29010B Autoselect Codes (High Voltage Method)

Description

A16 - A15

A14 - A10

A8 - A7

A5 - A2

Identifier Code on

I/O7 - I/O0

Manufacturer ID: AMIC

VID

VIL

37h

Device ID: A29010B

VID

VIL

VIH

A4h

01h (protected)

Sector Protection

Verification

Sector

Address

VID

VIL

VIH

VIL

00h (unprotected)

Continuation ID

VID

VIL

VIH

7Fh

Note: CE =VIL, OE =VIL and WE =VIH when Autoselect Mode

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