Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
AM49PDL640AG Datasheet(PDF) 17 Page - SPANSION |
|
AM49PDL640AG Datasheet(HTML) 17 Page - SPANSION |
17 / 69 page November 20, 2003 Am49PDL640AG 15 P R E L I M I NARY 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 c o rresponding progra mm ing algorithm. However, the autoselect codes can also be accessed in-system through the command register. When using programming equipment, the autoselect mode requires V ID on address pin A9. Address pins 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 ID. Refer to the Autoselect Com- mand Sequence section for more information. Table 7. Am29PDL640G Boot Sector/Sector Block Addresses for Protection/Unprotection Sector A21–A12 Sector/ Sector Block Size SA0 0000000000 4 Kwords SA1 0000000001 4 Kwords SA2 0000000010 4 Kwords SA3 0000000011 4 Kwords SA4 0000000100 4 Kwords SA5 0000000101 4 Kwords SA6 0000000110 4 Kwords SA7 0000000111 4 Kwords SA8–SA10 0000001XXX, 0000010XXX, 0000011XXX 96 (3x32) Kwords SA11–SA14 00001XXXXX 128 (4x32) Kwords SA15–SA18 00010XXXXX 128 (4x32) Kwords SA19–SA22 00011XXXXX 128 (4x32) Kwords SA23–SA26 00100XXXXX 128 (4x32) Kwords SA27-SA30 00101XXXXX 128 (4x32) Kwords SA31-SA34 00110XXXXX 128 (4x32) Kwords SA35-SA38 00111XXXXX 128 (4x32) Kwords SA39-SA42 01000XXXXX 128 (4x32) Kwords SA43-SA46 01001XXXXX 128 (4x32) Kwords SA47-SA50 01010XXXXX 128 (4x32) Kwords SA51-SA54 01011XXXXX 128 (4x32) Kwords SA55–SA58 01100XXXXX 128 (4x32) Kwords SA59–SA62 01101XXXXX 128 (4x32) Kwords SA63–SA66 01110XXXXX 128 (4x32) Kwords SA67–SA70 01111XXXXX 128 (4x32) Kwords SA71–SA74 10000XXXXX 128 (4x32) Kwords SA75–SA78 10001XXXXX 128 (4x32) Kwords SA79–SA82 10010XXXXX 128 (4x32) Kwords SA83–SA86 10011XXXXX 128 (4x32) Kwords SA87–SA90 10100XXXXX 128 (4x32) Kwords SA91–SA94 10101XXXXX 128 (4x32) Kwords SA95–SA98 10110XXXXX 128 (4x32) Kwords SA99–SA102 10111XXXXX 128 (4x32) Kwords SA103–SA106 11000XXXXX 128 (4x32) Kwords SA107–SA110 11001XXXXX 128 (4x32) Kwords SA111–SA114 11010XXXXX 128 (4x32) Kwords SA115–SA118 11011XXXXX 128 (4x32) Kwords SA119–SA122 11100XXXXX 128 (4x32) Kwords SA123–SA126 11101XXXXX 128 (4x32) Kwords SA127–SA130 11110XXXXX 128 (4x32) Kwords SA131–SA133 1111100XXX, 1111101XXX, 1111110XXX 96 (3x32) Kwords SA134 1111111000 4 Kwords SA135 1111111001 4 Kwords SA136 1111111010 4 Kwords SA137 1111111011 4 Kwords SA138 1111111100 4 Kwords SA139 1111111101 4 Kwords SA140 1111111101 4 Kwords SA141 1111111111 4 Kwords Sector A21–A12 Sector/ Sector Block Size |
Número de pieza similar - AM49PDL640AG |
|
Descripción similar - AM49PDL640AG |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |