
REV. A
AD6623
–9–
TIMING DIAGRAMS—INM MICROPORT MODE
CLK
RD (DS)
WR (RW)
CS
A[2:0]
D[7:0]
RDY
(
DTACK)
tSC
tHC
tHWR
tSAM
tHAM
tDRDY
VALID DATA
VALID ADDRESS
tHAM
tACC
NOTES
1.
tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS TIME IS
MEASURED FROM FE OF
WR TO THE RE OF RDY.
2.
tACC REQUIRES A MAXIMUM 9 CLK PERIODS.
Figure 12. INM Microport Write Timing Requirements
CLK
RD (DS)
WR (RW)
A[2:0]
D[7:0]
RDY
(
DTACK)
tSC
tSAM
tZD
tDRDY
VALID DATA
VALID ADDRESS
tACC
tHC
CS
tZD
tHAM
NOTES
1.
tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS
TIME IS MEASURED FROM FE OF
WR TO THE RE OF RDY.
2.
tACC REQUIRES A MAXIMUM OF 13 CLK PERIODS AND APPLIES TO
A[2:0] = 7, 6, 5, 3, 2, 1
tDD
Figure 13. INM Microport Read Timing Requirements
TIMING DIAGRAMS—MNM MICROPORT MODE
CLK
DS (RD)
CS
A[2:0]
D[7:0]
DTACK
(RDY)
tSC
tHC
tHRW
tSAM
tHAM
VALID DATA
VALID ADDRESS
tHAM
tACC
NOTES
1.
tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS TIME IS
MEASURED FROM FE OF
DS TO THE FE OF DTACK.
2.
tACC REQUIRES A MAXIMUM 9 CLK PERIODS.
RW (
WR)
tDDTACK
tHDS
Figure 14. MNM Microport Write Timing Requirements
CLK
DS (RD)
RW (
WR)
A[2:0]
D[7:0]
DTACK
(RDY)
tSC
tSAM
tZD
VALID DATA
VALID ADDRESS
tACC
tHC
CS
tZD
tHAM
tDD
tDDTACK
tHDS
NOTES
1.
tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS TIME IS
MEASURED FROM FE OF
DS TO THE FE OF DTACK.
2.
tACC REQUIRES A MAXIMUM 13 CLK PERIODS.
Figure 15. MNM Microport Read Timing Requirements