 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
AM29BDD160GB28CPBK датащи(PDF) 19 Page - Advanced Micro Devices |
|
||||||||||||||||||||||||||||||
AM29BDD160GB28CPBK датащи(HTML) 19 Page - Advanced Micro Devices |
|
|
19 / 79 page  June 7, 2006 Am29BDD160G 17 Synchronous (Burst) Read Operation The Am29BDD160 is capable of performing burst read operations to improve total system data throughput. The device is available in three burst modes of opera- tion: linear and burst mode. 2, 4 and 8 double word (x32) and 4 and 8 word (x16) accesses are config- urable as either sequential burst accesses. 16 and 32 word (x16) accesses are only configurable as linear burst accesses. Additional options for all burst modes include initial access delay configurations (2–16 CLKs) Device configuration for burst mode operation is accomplished by writing the Configuration Register with the desired burst configuration information. Once the Configuration Register is written to enable burst mode operation, all subsequent reads from the array are returned using the burst mode protocols. Like the main memory access, the SecSi Sector memory is ac- cessed with the same burst or asynchronous timing as defined in the Configuration Register. However, the user must recognize that continuous burst operations past the 256 byte SecSi boundary returns invalid data. Burst read operations occur only to the main flash memory arrays. The Configuration Register and pro- tection bits are treated as single cycle reads, even when burst mode is enabled. Read operations to these locations results in the data remaining valid while OE# is at V IL, regardless of the number of CLK cycles applied to the device. Linear Burst Read Operations Linear burst read mode reads either 4, 8, 16, or 32 words (1 word = 16 bits), depending upon the Configu- ration Register option. If the device is configured with a 32 bit interface (WORD# = V IH), the burst access is comprised of 4 clocked reads for 8 words and 16 clocked reads for 32 words (See Table 6 for all valid burst output sequences). The number of clocked reads is doubled when the device is configured in the 16-bit data bus mode (WORD# = V IL). The IND/WAIT# pin transitions active (V IL) during the last transfer of data during a linear burst read before a wrap around, indicating that the system should initiate another ADV# to start the next burst access. If the system con- tinues to clock the device, the next access wraps around to the starting address of the previous burst access. The IND/WAIT# signal remains inactive (float- ing) when not active. See Table 6 for a complete 32 and 16 bit data bus interface order. 16 and 32 word options are restricted to sequential burst accesses, only. Table 6. 16-Bit and 32-Bit Linear and BurstData Order Data Transfer Sequence (Independent of the WORD# pin) Output Data Sequence (Initial Access Address) (x16) Two Linear Data Transfers, (x32 only) 0-1 (A0 = 0) 1-0 (A0 = 1) Four Linear Data Transfers 0-1-2-3 (A0:A-1/A1-A0 = 00) 1-2-3-0 (A0:A-1/A1-A0 = 01) 2-3-0-1 (A:A-1/A1-A0 = 10) 3-0-1-2 (A0:A-1/A1-A0 = 11) Eight Linear Data Transfers 0-1-2-3-4-5-6-7 (A1:A-1A2-A0 = 000) 1-2-3-4-5-6-7-0 (A1:A-1/A2-A0 = 001) 2-3-4-5-6-7-0-1 (A1:A-1/A2-A0 = 010) 3-4-5-6-7-0-1-2 (A1:A-1/A2-A0 = 011) 4-5-6-7-0-1-2-3 (A1:A-1/A2-A0 = 100) 5-6-7-0-1-2-3-4 (A1:A-1/A2-A0 = 101) 6-7-0-1-2-3-4-5 (A1:A-1/A2-A0 = 110) 7-0-1-2-3-4-5-6 (A1:A-1/A2-A0 = 111) |
Аналогичный номер детали - AM29BDD160GB28CPBK |
|
Аналогичное описание - AM29BDD160GB28CPBK |
|
|
ссылки URL |
| Конфиденциальность |
| ALLDATASHEETRU.COM |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
