AM29F100B-90SE データシートの表示（PDF） - Advanced Micro Devices

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AM29F100B-90SE

1 Megabit (128 K x 8-bit/64 K x 16-bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory

Advanced Micro Devices 

A15

SA0

0

SA1

1

SA2

1

SA3

1

SA4

1

Table 2. Sector Addresses Tables (Am29F100T)

A14

A13

A12

(x8) Address Range (x16) Address Range

X

X

X

00000h-0FFFFh

00000h-07FFFh

0

X

X

10000h-17FFFh

08000h-0BFFFh

1

0

0

18000h-19FFFh

0C000h-0CFFFh

1

0

1

1A000h-1BFFFh

0D000h-0DFFFh

1

1

X

1C000h-1FFFFh

0E000h-0FFFFh

A15

SA0

0

SA1

0

SA2

0

SA3

0

SA4

1

Table 3. Sector Addresses Tables (Am29F100B)

A14

A13

A12

(x8) Address Range (x16) Address Range

0

0

X

00000h-03FFFh

00000h-01FFFh

0

1

0

04000h-05FFFh

02000h-02FFFh

0

1

1

06000h-07FFFh

03000h-03FFFh

1

X

X

08000h-0FFFFh

04000h-07FFFh

X

X

X

10000h-1FFFFh

08000h-0FFFFh

Autoselect Mode

The autoselect mode provides manufacturer and de-

vice identification, and sector protection verification,

through identifier codes output on DQ7–DQ0. 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 (11.5 V to 12.5 V) on address pin

A9. Address pins A6, A1, and A0 must be as shown in

Autoselect Codes (High Voltage Method) table. In addi-

tion, when verifying sector protection, the sector

address must appear on the appropriate highest order

address bits. Refer to the corresponding Sector Ad-

dress 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 program-

ming equipment may then read the corresponding

identifier code on DQ7–DQ0.

To access the autoselect codes in-system, the host

system can issue the autoselect command via the

command register, as shown in the Command Defini-

tions table. This method does not require VID. See

“Command Definitions” for details on using the autose-

lect mode.

9

Am29F100

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