MBM29DL32XTE/BE80/90
(Continued)
Bus
write
cy-
Fourth bus
read/write
cycle
First bus Second bus Third bus
write cycle write cycle write cycle
Fifth bus
write cycle write cycle
Sixth bus
Command
sequence
cles
req’d
Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data
Word
555h
AAAh
555h
AAAh
555h
AAAh
2AAh
555h
2AAh
555h
2AAh
555h
555h
AAAh
555h
AAAh
555h
AAAh
HiddenROM
Entry
3
4
6
AAh
AAh
AAh
55h
55h
55h
88h
A0h
80h
Byte
Word
Byte
Word
Byte
HiddenROM
Program *5
(HRA)
PA
PD
555h
2AAh
555h
HiddenROM
Erase *5
AAh
55h HRA 30h
AAAh
(HRBA)
Word
Byte
555h
2AAh
555h
555h
HiddenROM
Exit *5
4
AAh
55h
90h XXXh 00h
(HRBA)
AAAh
AAAh
*1 : Both of these reset commands are equivalent.
*2 : This command is valid during Fast Mode.
*3 : This command is valid while RESET = VID (except during HiddenROM MODE).
*4 : The valid address are A6 to A0.
*5 : This command is valid during HiddenROM mode.
*6 : The data “00h” is also acceptable.
*7 : The fourth bus cycle is only for read.
Notes : • Address bits A20 to A11 = X = “H” or “L” for all address commands except or Program Address (PA) , Sector
Address (SA) , Bank Address (BA) and Sector Group Address (SPA) .
• Bus operations are defined in “MBM29DL32XTE/BE User Bus Operations (BYTE = VIH) ” and
“MBM29DL32XTE/BE User Bus Operations (BYTE = VIL) ”.
• RA = Address of the memory location to be read
IA = Autoselect read address sets both the bank address specified at (A19, A18, A17, A16, A15) and all the
other A6, A1, A0, (A−1) .
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, A13, and
A12 will uniquely select any sector.
BA = Bank Address (A20 to A15)
• RD = Data read from location RA during read operation.
ID = Device code/manufacture code for the address located by IA.
PD = Data to be programmed at location PA. Data is latched on the rising edge of write pulse.
• SPA = Sector group address to be protected. Set sector group address and (A6, A1, A0) = (0, 1, 0) .
SD = Sector group protection verify data. Output 01h at protected sector group addresses and output
00h at unprotected sector group addresses.
• HRA = Address of the HiddenROM area
29DL32XTE (Top Boot Type)
Word Mode : 1F8000h to 1FFFFFh
Byte Mode : 3F0000h to 3FFFFFh
29DL32XBE (Bottom Boot Type) Word Mode : 000000h to 007FFFh
Byte Mode : 000000h to 00FFFFh
• HRBA = Bank Address of the HiddenROM area
29DL32XTE (Top Boot Type) : A20 = A19 = A18 = A17 = A16 = A15 = VIH
29DL32XBE (Bottom Boot Type) : A20 = A19 = A18 = A17 = A16 = A15 = VIL
• The system should generate the following address patterns :
Word Mode : 555h or 2AAh to addresses A10 to A0
Byte Mode : AAAh or 555h to addresses A10 to A0, and A-1
12
SPANSION [ SPANSION ]
