 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
S29GL032A Datasheet(PDF) 33 Page - SPANSION |
|
|
|||||||||||||||||||||||||||||
S29GL032A Datasheet(HTML) 33 Page - SPANSION |
|
|
33 / 88 page  January 28, 2005 S29GLxxxA_00_A2 S29GLxxxA MirrorBit™ Flash Family 31 Advance Information method does not require VID. Refer to the Autoselect Command Sequence section for more information. Table 12. Autoselect Codes, (High Voltage Method) Legend: L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care. Sector Group Protection and Unprotection The hardware sector group protection feature disables both program and erase operations in any sector group (see Table 11-Table 20). The hardware sector group unprotection feature re-enables both program and erase operations in pre- viously protected sector groups. Sector group protection/unprotection can be implemented via two methods. Sector protection/unprotection requires VID on the RESET# pin only, and can be implemented either in-system or via programming equipment. Figure 2 shows the algorithms and Figure 24 shows the timing diagram. This method uses stan- dard microprocessor bus cycle timing. For sector group unprotect, all unprotected sector groups must first be protected prior to the first sector group unprotect write cycle. The device is shipped with all sector groups unprotected. Spansion offers the op- tion of programming and protecting sector groups at its factory prior to shipping the device through Spansion Programming Service. Contact a Spansion represen- tative for details. It is possible to determine whether a sector group is protected or unprotected. See the Autoselect Mode section for details. Description CE# OE# WE# A22 to A15 A14 to A10 A9 A8 to A7 A6 A5 to A4 A3 to A2 A1 A0 DQ8 to DQ15 DQ7 to DQ0 Model Number BYTE# = VIH BYTE# = VIL R1, R2, R8, R9 R3, R4 R5, R6, R7 Manufacturer ID: Spansion Products LL H X X VID X L X L L L 00 X 01h 01h 01h Cycle 1 LL H X X VID XLX L L H 22 X 7Eh 7Eh 7Eh Cycle 2 H H L 22 X 0Ch 10h 13h Cycle 3 H H H 22 X 01h 00h (-R4, bottom boot) 01h (-R3, top boot) 01h Cycle 1 LL H X X VID XLX LL H 22 X 7Eh 7Eh Cycle 2 H H L 22 X 1Dh 1Ah Cycle 3 H H H 22 X 00h 00h (-R4, bottom boot) 01h (-R3, top boot) Sector Group Protection Verification LL H SA X VID XLXL H L X X 01h (protected), 00h (unprotected) Secured Silicon Sector Indicator Bit (DQ7), WP# protects highest address sector LL H X X VID XLXL H H X X 98h (factory locked), 18h (not factory locked) Secured Silicon Sector Indicator Bit (DQ7), WP# protects lowest address sector LL H X X VID XLXL H H X X 88h (factory locked), 08h (not factory locked) |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
