IDT72V70210 Datasheet, PDF (7/19 Pages) Integrated Device Technology – 3.3 VOLT TIME SLOT INTERCHANGE DIGITAL SWITCH 1,024 x 1,024

IDT72V70210 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 1,024 x 1,024
TABLE 1 — CONSTANT THROUGHPUT
DELAY VALUE
Input Rate
2.048 Mb/s
Delay for Constant Throughput Delay Mode
(m – output channel number)
(n – input channel number)
32 + (32 – n) +m time-slots
COMMERCIAL TEMPERATURE RANGE
TABLE 2 — VARIABLE THROUGHPUT DELAY VALUE
Input Rate
Delay for Variable Throughput Delay Mode
(m – output channel number; n – input channel number)
m<n
m = n, n+1, n+2
2.048 Mb/s
32 – (n-m) time-slots
(m-n + 32) time slots
m > n+2
(m-n) time-slots
TABLE 3 — OUTPUT HIGH IMPEDANCE CONTROL
OE bit in Connection
Memory
0
ODE pin
Don’t Care
OSB bit in CR
Register
Don’t Care
1
0
0
1
0
1
1
1
0
1
1
1
TX Stream Output
Status
Per Channel
High-Impedance
High-Impedance
Enable
Enable
Enable
TABLE 4 — INTERNAL REGISTER AND ADDRESS MEMORY MAPPING
A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 R/W
Location
1
1 STA4 STA3 STA2 STA1 STA0 CH4 CH3 CH2 CH1 CH0 R
Data Memory
1
0 STA4 STA3 STA2 STA1 STA0 CH4 CH3 CH2 CH1 CH0 R/W
0
1
0
0
0
0
x
x
x
x
x
x R/W
0
1
0
0
0
1
x
x
x
x
x
x R/W
0
1
0
0
1
0
x
x
x
x
x
x R/W
0
1
0
0
1
1
x
x
x
x
x
x R/W
0
1
0
1
0
0
x
x
x
x
x
x R/W
0
1
0
1
0
1
x
x
x
x
x
x R/W
0
1
0
1
1
0
x
x
x
x
x
x R/W
0
1
0
1
1
1
x
x
x
x
x
x R/W
0
1
1
0
0
0
x
x
x
x
x
x R/W
0
1
1
0
0
1
x
x
x
x
x
x R/W
Connect. Memory
Control Register
Frame Align Register
FOR0
FOR1
FOR2
FOR3
FOR4
FOR5
FOR6
FOR7
7