CY7C68013
Document #: 38-08012 Rev. *A
Page 41 of 48
9.7
Slave FIFO Asynchronous Read
Note:
15. Slave FIFO asynchronous parameter values use internal IFCLK setting at 48 MHz.
9.8
Slave FIFO Synchronous Write
Table 9-8. Slave FIFO Asynchronous Read Parameters
[15]
Parameter
Description
Min.
Max.
Unit
t
RDpwl
SLRD Pulse Width LOW
50
ns
t
RDpwh
SLRD Pulse Width HIGH
50
ns
t
XFLG
SLRD to FLAGS Output Propagation Delay
70
ns
t
XFD
SLRD to FIFO Data Output Propagation Delay
15
ns
t
OEon
SLOE Turn-on to FIFO Data Valid
10.5
ns
t
OEoff
SLOE Turn-off to FIFO Data Hold
10.5
ns
Table 9-9. Slave FIFO Synchronous Write Parameters with Internally Sourced IFCLK
[14]
Parameter
Description
Min.
Max.
Unit
t
IFCLK
IFCLK Period
20.83
ns
t
SWR
SLWR to Clock Set-up Time
18.1
ns
t
WRH
Clock to SLWR Hold Time
0
ns
t
SFD
FIFO Data to Clock Set-up Time
9.2
ns
t
FDH
Clock to FIFO Data Hold Time
0
ns
t
XFLG
Clock to FLAGS Output Propagation Time
9.5
ns
SLRD
FLAGS
t
RDpwl
t
RDpwh
SLOE
t
XFLG
t
XFD
DATA
t
OEon
t
OEoff
N+1
N
Figure 9-6. Slave FIFO Asynchronous Read Timing Diagram
[12]
Z
Z
t
SFD
t
FDH
DATA
IFCLK
SLWR
FLAGS
t
WRH
t
XFLG
t
IFCLK
t
SWR
N
Figure 9-7. Slave FIFO Synchronous Write Timing Diagram
[12]
