MBM29DL34TF Fujitsu Media Devices, MBM29DL34TF Datasheet - Page 12

• Manufacturer Part Number: MBM29DL34TF
• Description: (MBM29DL34BF/TF) FLASH MEMORY CMOS 32 M (4 M X 8/2 M X 16) BIT
• Manufacturer: Fujitsu Media Devices

12
MBM29DL34TF/BF
(Continued)
*1 : The command combinations not described in “MBM29DL34TF/BF Command Definitions Table” are illegal.
*2 : Both of these reset commands are equivalent.
*3 : Erase Suspend and Erase Resume command are valid only during a sector erase operation.
*4 : This command is valid during Fast Mode.
*5 : The Reset from Fast Mode command is required to return to the read mode when the device is in Fast Mode.
*6 : This command is valid while RESET
*7 : Sector Group Address (SGA) with (A
*8 : The valid address are A
*9 : The HiddenROM Entry command is required prior to the HiddenROM programming.
*10 : This command is valid during HiddenROM mode.
*11 : The date “F0h” is also acceptable.
Notes:
HiddenRom
HiddenRom
Program *
Exit *
Command
sequence
10
Address bits A
Address (SA) , Bank Address (BA) .
Bus operations are defined in “MBM29DL34TF/BF User Bus Operations Tables (BYTE = V
BYTE = V
RA
PA
SA
BA
RD
PD
SGA
SD
HRA
HRBA
The system should generate the following address patterns :
Both Reset commands are functionally equivalent, resetting the device to the read mode.
10
Word
Word
Byte
Byte
Address of the memory location to be read
Address of the memory location to be programmed
Addresses are latched on the falling edge of the write pulse.
Address of the sector to be erased. The combination of A
A
Bank Address (A
Data read from location RA during read operation.
Data to be programmed at location PA. Data is latched on the rising edge of write pulse.
Sector Group Address. The combination of A
Sector group protection verify data. Output 01h at protected sector group addresses and output
00h at unprotected sector group addresses.
Address of the HiddenROM area
29DL34TF (Top Boot Type) Word Mode : 1FF000h to 1FF07Fh
29DL34BF (Bottom Boot Type) Word Mode : 000000h to 00007Fh
Bank Address of the HiddenROM area
29DL34TF (Top Boot Type) : A
29DL34BF (Bottom Boot Type) : A
IL
)” (
12
cycles
will uniquely select any sector.
write
req’d
Byte Mode : 3FE000h to 3FE0FFh
Byte Mode : 000000h to 0000FFh
Word Mode : 555h or 2AAh to addresses A
Byte Mode : AAAh or 555h to addresses A
Bus
20
4
4
to A
DEVICE BUS OPERATION).
6
Addr. Data Addr. Data
AAAh
AAAh
11
write cycle
555h
555h
to A
First bus
X “H” or “L” for all address commands except or Program Address (PA) , Sector
0
.
20
AAh
AAh
to A
70
18
6
, A
2AAh
2AAh
555h
555h
Second bus
V
)
write cycle
ID
3
, A
(except during HiddenROM mode).
2
20
, A
55h
55h
1
, A
20
A
19
0
)
A
(HRBA)
(HRBA)
Addr.
AAAh
AAAh
19
write cycle
555h
555h
A
Third bus
(0, 0, 0, 1, 0) .
18
A
20
18
10
1
10
to A
to A
Data Addr. Data Addr. Data Addr. Data
to A
A0h
90h
0
12
0
0
will uniquely select any sector group.
, and A
(HRA)
XXXh
Fourth bus
read/write
20
PA
, A
cycle
-1
19
, A
00h
PD
18
, A
17
write cycle
, A
Fifth bus
16
, A
15
, A
IH
14
and
, A
write cycle
Sixth bus
13
, and