HOST INTERFACE
Data Device Corporation DS-BU-67301B-G
www.ddc-web.com
1/14
Figure 28. Synchronous, Non-Multiplexed Address - 16-bit Single-Word Memory Write
Timing
Figure 28 Notes:
1. When nSELECT is asserted (low), the Total-AceXtreme® is selected for this
data transfer. nSELECT must be asserted through the full transfer cycle, and
de-asserted high at the end of the transfer.
2. For 16-bit accesses, CPU_WORD_EN[1:0] must be ‘11’ through the full
transfer cycle.
3. Unless the Total-AceXtreme command FIFO is full, CPU_nSTOP is not
asserted for write accesses, and will remain high.
nDATA_RDY
nSELECT
CPU_ADDR
nDATA_STRB
CPU_DATA
HOST_CLK
MSW_nLSW
RD_nWR
CPU_WORD_EN[1:0]
MEM_nREG
CPU_nSTOP
tDS
tAS tAH
tDH
tCLK
tWait
tWait
tRDD
tRDD
tRDD
tRDD
tAS
Address
tSS
tCS
tSS
tCS
tCH
tCH
tSH tSH
Data A
Data B
tAS
tAS
tAS
tAS
tDS tDH
tAH
tAH
tAH
tAH
tSHC