xrt73r06 Exar Corporation, xrt73r06 Datasheet - Page 53

• Manufacturer Part Number: xrt73r06
• Description: Six Channel Ds3/e3 Line Interface Unit Liu With R3 Technologytm
• Manufacturer: Exar Corporation

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SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
F
N
IGURE
OTE
S
YMBOL
NA
NA
: 1. This timing parameter is based on the frequency of the synchronous clock (PCLK). To determine the access
t
t
t
t
t
0
1
2
3
4
Addr[7:0]
time, use the following formula: (PCLK
37. S
PCLK
RDY
D[7:0]
WR
RD
CS
Valid Address to CS Falling Edge
CS Falling Edge to RD Assert
RD Assert to RDY Assert
RD Pulse Width (t
CS Falling Edge to WR Assert
WR Assert to RDY Assert
WR Pulse Width (t
PCLK Period
PCLK Duty Cycle
PCLK "High/Low" time
YNCHRONOUS
t
0
t
1
µP I
2
4
)
)
T
NTERFACE
P
ABLE
Valid Address
ARAMETER
READ OPERATION
t
2
14: S
S
period
Valid Data for Readback
YNCHRONOUS
IGNALS
* 2) + 5ns
D
URING
50
T
IMING
P
ROGRAMMED
t
0
S
PECIFICATIONS
M
40
40
15
t
3
0
0
0
-
-
IN
I/O R
Data Available to Write Into the LIU
WRITE OPERATION
EAD AND
t
4
Valid Address
M
35
35
-
-
-
-
-
AX
W
RITE
ns
ns
ns, see note 1
ns
ns
ns, see note 1
ns
ns
O
PERATIONS
XRT73R06
U
REV. 1.0.0
NITS