AM29PDL640G AMD [Advanced Micro Devices], AM29PDL640G Datasheet - Page 17

• Manufacturer Part Number: AM29PDL640G
• Description: 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIOTM Control
• Manufacturer: AMD [Advanced Micro Devices]

December 13, 2005
Bank
Table 4. Am29PDL640G Sector Architecture
Am29PDL640G
Bank
Table 6.
Sector
SA119
SA120
SA121
SA122
SA123
SA124
SA125
SA126
SA127
SA128
SA129
SA130
SA131
SA132
SA133
SA134
SA135
SA136
SA137
SA138
SA139
SA140
SA141
A
B
C
D
Device
Table 5. Bank Address
1111111000
1111111001
1111111010
1111111011
1111111100
1111111101
1111111110
1111111111
1110000xxx
1110001xxx
1110010xxx
1110011xxx
1110100xxx
1110101xxx
1110110xxx
1110111xxx
1111000xxx
1111001xxx
1111010xxx
1111011xxx
1111100xxx
1111101xxx
1111110xxx
A21–A12
Address
Sector
SecSi
Sector Size
128 words
TM
Sector Addresses
(Kwords)
Sector
001, 010, 011
100, 101, 110
Size
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
4
4
4
4
4
4
4
4
A21–A19
000
111
Address Range
3C8000h–3CFFFFh
3D8000h–3DFFFFh
3FC000h–3FCFFFh
3FD000h–3FDFFFh
00000h–0007Fh
3A0000h–3A7FFFh
3A8000h–3AFFFFh
3B0000h–3B7FFFh
3B8000h–3BFFFFh
3C0000h–3C7FFFh
3D0000h–3D7FFFh
3E0000h–3E7FFFh
3E8000h–3EFFFFh
3FB000h–3FBFFFh
3FE000h–3FEFFFh
3FF000h–3FFFFFh
388000h–38FFFFh
398000h–39FFFFh
3F0000h–3F7FFFh
3F8000h–3F8FFFh
3F9000h–3F9FFFh
3FA000h–3FAFFFh
380000h–387FFFh
390000h–397FFFh
Address Range
D A T A S H E E T
Am29PDL640G
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 equip-
ment to automatically match a device to be pro-
grammed 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
must be as shown in Table 7. In addition, when verify-
ing sector protection, the sector address must appear
on the appropriate highest order address bits (see
Table 4). Table 7 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 DQ7–DQ0.
However, the autoselect codes can also be accessed
in-system through the command register, for instances
when the device is erased or programmed in a system
without access to high voltage on the A9 pin. The com-
mand sequence is illustrated in Table 14. Note that if a
Bank Address (BA) on address bits A21, A20, and A19
is asserted during the third write cycle of the autose-
lect command, the host system can read autoselect
data that bank and then immediately read array data
from the other bank, without exiting the autoselect
mode.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 14. This method
does not require V
mand Sequence
section for more information.
ID
on address pin A9. Address pins
ID
. Refer to the
Autoselect Com-
15