IDT72V90823 Integrated Device Technology, IDT72V90823 Datasheet - Page 11

• Manufacturer Part Number: IDT72V90823
• Description: 3.3 Volt Time Slot Interchange Digital Switch
• Manufacturer: Integrated Device Technology

TABLE 5 — OUTPUT HIGH IMPEDANCE CONTROL
TABLE 6 — CONTROL REGISTER (CR) BITS
TABLE 7 — VALID ADDRESS LINES FOR DIFFERENT BIT RATES
IDT72V90823 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 2,048 x 2,048
15-6
Read/Write Address:
Reset Value:
3-0
OE bit in Connection
Bit
15
0
5
4
Memory
14
Unused
MBP
(Memory Block Program)
MS
(Memory Select)
STA3-0
(Stream Address Bits)
0
0
1
1
1
1
Name
13
0
Input/Output
2.048 Mb/s
4.096 Mb/s
8.192 Mb/s
Data Rate
00
0000
12
0
H
,
H
.
11
0
Must be zero for normal operation.
When 1, the connection memory block programming feature is ready for the programming of Connection
Memory high bits, bit 11 to bit 15. When 0, this feature is disabled.
When 0, connection memory is selected for read or write operations. When 1, the data memory is selected
(No microprocessor write operation is allowed for the data memory.)
The binary value expressed by these bits refers to the input or output data stream, which corresponds
for read operations and connection memory is selected for write operations.
to the subsection of memory made accessible for subsequent operations. (STA3 = MSB, STA0 = LSB)
Don’t Care
ODE pin
10
0
0
0
1
1
9
0
8
0
OSB bit in IMS
7
0
11
Don’t Care
Register
0
1
1
0
6
0
Description
MBP
5
A6, A5, A4, A3, A2, A1, A0
A5, A4, A3, A2, A1, A0
Valid Address Lines
MS
A4, A3, A2, A1, A0
4
STA3 STA2 STA1 STA0
3
COMMERCIAL TEMPERATURE RANGE
TX Output Driver
High-Impedance
High-Impedance
2
Per Channel
Status
Enable
Enable
Enable
1
0