MB84VA2106 Datasheet, PDF (9/29 Pages) Fujitsu Component Limited. – 16M (x16) FLASH MEMORY & 1M (x 8) STATIC RAM

MB84VA2106-10/MB84VA2107-10
Table 6 Flash Memory Command Definitions
Command
Sequence
Bus
Write
Cycles
Req’d
First Bus
Write Cycle
Addr. Data
Second Bus
Write Cycle
Addr. Data
Third Bus
Write Cycle
Addr. Data
Fourth Bus
Read/Write
Cycle
Addr. Data
Fifth Bus
Write Cycle
Addr. Data
Sixth Bus
Write Cycle
Addr. Data
Read/Reset
1 XXXH F0H — — — — — — — — — —
Read/Reset
3 555H AAH 2AAH 55H 555H F0H RA RD — — — —
Autoselect
3 555H AAH 2AAH 55H 555H 90H — — — — — —
Program
4 555H AAH 2AAH 55H 555H A0H PA PD — — — —
Chip Erase
6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H
Sector Erase
6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA 30H
Sector Erase Suspend
Erase can be suspended during sector erase with Addr. (“H” or “L”). Data (B0H)
Sector Erase Resume
Erase can be resumed after suspend with Addr. (“H” or “L”). Data (30H)
Set to
Fast Mode
3 555H AAH 2AAH 55H 555H 20H — — — — — —
Fast Program
(Note)
2 XXXH A0H PA PD — — — — — — — —
Reset from Fast
Mode (Note)
2 XXXH 90H XXXH F0H —
—
——
—
———
Extended Sector
Protect
4 XXXH 60H SPA 60H SPA 40H SPA SD —
—
—
—
Address bits A11 to A20 = X = “H” or “L” for all address commands except for Program Address (PA) and Sector
Address (SA).
Bus operations are defined in Table 2.
Both Read/Reset commands are functionally equivalent, resetting the device to the read mode.
RA =Address of the memory location to be read.
PA =Address of the memory location to be programmed. Addresses are latched on the falling edge of
the write pulse.
SA =Address of the sector to be erased. The combination of A20, A19, A18, A17, A16, A15, A14, and A13 will
uniquely select any sector.
RD =Data read from location RA during read operation.
PD =Data to be programmed at location PA.
SPA =Sector address to be protected. Set sector address (SA) and (A6, A1, A0) = (0, 1, 0).
SD =Sector protection verify data. Output 01H at protected sector addresses and output 00H at unprotected
sector addresses.
Note:This command is valid while Fast Mode.
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