 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
H8/3028F 数据表(PDF) 194 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
H8/3028F 数据表(HTML) 194 Page - Renesas Technology Corp |
|
|
194 / 923 page  Rev. 2.00, 09/03, page 164 of 890 N N H'00 φ RTCNT RTCOR Refresh request signal and CMF bit setting signal Figure 6.27 Compare Match Timing TRp TR1 TR2 φ CSn (RAS) ( UCAS/LCAS) PB4/PB5 RD (WE) RFSH AS Address bus * Area 2 start address High High level Note: * In address update mode 1, the area 2 start address is output. In address update mode 2, the address in the preceding bus cycle is retained. Figure 6.28 CBR Refresh Timing (CSEL = 0, TPC = 0, RLW = 0) The basic CBS refresh cycle timing comprises three states: one RAS precharge cycle (TRP) state, and two RAS output cycle (TR1, TR2) states. Either one or two states can be selected for the RAS precharge cycle. When the TPC bit is set to 1 in DRCRB, RAS signal output is delayed by one cycle. This does not affect the timing of UCAS and LCAS output. |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
