a29160 AMIC Technology Corporation, a29160 Datasheet - Page 10

• Manufacturer Part Number: a29160
• Description: 2m X 8 Bit / 1m X 16 Bit Cmos 5.0 Volt-only, Boot Sector Flash Memory
• Manufacturer: AMIC Technology Corporation

Autoselect Mode
The autoselect mode provides manufacturer and device
identification, and sector protection verification, through
identifier codes output on I/O
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 V
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
Manufacturer ID: AMIC
Device ID: A29160
(Top Boot Block)
Device ID: A29160
(Bottom Boot Block)
Continuation ID
Sector Protection Verification
L=Logic Low= V
Note: The autoselect codes may also be accessed in-system via command sequences.
(April, 2010, Version 0.2)
Description
ID
(9.5V to 11.5 V) on address pin A9. Address
IL
, H=Logic High=V
Mode
Word
Word
Byte
Byte
7
Table 4. A29160 Autoselect Codes (High Voltage Method)
- I/O
CE
L
L
L
L
L
IH
0
, SA=Sector Address, X=Don’t Care.
. This mode is primarily
OE
L
L
L
L
L
WE
H
H
H
H
H
A19
A12
SA
to
X
X
X
X
A10
A11
to
9
X
X
X
X
X
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/O
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 V
the autoselect mode.
V
V
V
V
V
A9
ID
ID
ID
ID
ID
A8
A7
to
X
X
X
X
X
ID
. See "Command Definitions" for details on using
A6
L
L
L
L
L
A5
A2
to
X
X
X
X
X
A1
H
H
L
L
L
AMIC Technology, Corp.
A0
H
H
H
L
L
A29160 Series
I/O
7
I/O
22h
22h
to
X
X
X
X
X
X
- I/O
15
8
0
.To access the
(unprotected)
(protected)
D2h
D2h
D8h
D8h
I/O
I/O
37h
7Fh
01h
00h
to
7
0