H O S T I N T E R F A C E
Data Device Corporation
DS-BU-67301B-G
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Figure 31. Synchronous, Multiplexed Address 32-bit - Single-Word Register Read
Timing
Figure 31 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 register accesses, the value of the CPU_WORD_EN[1:0] inputs must be
‘11’.
3. For a register read access, CPU_nSTOP asserts (low) simultaneous with
nDATA_RDY, and de-asserts (high) on the host clock cycle following
nSELECT returning high.
CPU_nLAST
nDATA_RDY
CPU_DATA
CPU_WORD_EN[1:0]
RD_nWR
MEM_nREG
ADDR_LAT
nDATA_STRB
nSELECT
CPU_nSTOP
HOST_CLK
tOHZ
tOH
tSTPD
tDD
tCLK
tRDD
tRDD
tSTPD
Address
Data
tAH
tALS
tAH
tSH
tSS
tCS
tCH
tALH
tAS
tAS
tAS
tAS
tAH
tAH
tSHC
tWait