전자부품 데이터시트 검색엔진 |
|
MC-ACT-UARTM-VHDL 데이터시트(PDF) 8 Page - Actel Corporation |
|
MC-ACT-UARTM-VHDL 데이터시트(HTML) 8 Page - Actel Corporation |
8 / 9 page WRITE TIMING The figure below shows the setup and hold times required for a successful write. Write data is captured with the rising edge of wr_n and is written to the appropriate location within the UARTM within the recovery time. Read or write accesses during the recovery time is not permitted. The recovery time is relaxed during back to back write cycles to the TX FIFO. Figure 4: Asynchronous Timing For Writes Description Min Max tWR wr_n strobe width 2*tCY tSUD Setup time for D with respect to rising edge of wr_n tCY tSUCS Setup time for cs_n with respect to falling edge of wr_n tCY tSUA Setup time for A with respect to falling edge of wr_n tCY tHD Hold time for data_in with respect to rising edge of wr_n tCY tHA Hold time for A with respect to rising edge of wr_n NUM_CHANNELS*tCY tHCS Hold time for cs_n with respect to rising edge of wr_n tCY trecovery1 Delay from previous rd_n or wr_n rising edge to the falling edge of wr_n (3*NUM_CHANNELS+3)*tCY Table 4: Write Timing Descriptions Where: • tCY is the period of the system clock • 1 A Write FIFO followed by a Write FIFO of the same channel requires a recovery time (trecovery) of a minimum of 4*tCY. RESET TIMING After initiating a reset to the core, allow a minimum of (8 * NUM_CHANNELS+3)*tCY after the trailing edge of reset prior to using the device. This delay is needed for the synchronous clearing of state in each of the channels. The reset pulse with should be greater than tCY wide. cs_n wr_n data_in A Data Valid t SUD t HD t SUCS t SUA t HA t HCS t WR rd_n t recovery 1 |
유사한 부품 번호 - MC-ACT-UARTM-VHDL |
|
유사한 설명 - MC-ACT-UARTM-VHDL |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |