IDT72V70190 Integrated Device Technology, IDT72V70190 Datasheet - Page 10

• Manufacturer Part Number: IDT72V70190
• Description: 3.3 Volt Time Slot Interchange Digital Switch 256 X 256
• Manufacturer: Integrated Device Technology

TABLE 8 — FRAME INPUT OFFSET REGISTER (FOR) BITS
NOTE:
1. n denotes an input stream number from 0 to 7.
IDT72V70190 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 256 x 256
OFn2, OFn1, OFn0
(Offset Bits 2, 1 & 0)
OF32
OF72
(Data Latch Edge)
Read/Write Address:
Reset Value:
15
15
Name
DLEn
OF31
OF71
14
14
(1)
OF30
OF70
13
13
These three bits define how long the serial interface receiver takes to recognize and store bit 0 from the RX input pin: i.e., to
start a new frame. The input frame offset can be selected to +4.5 clock periods from the point where the external frame pulse
input signal is applied to the F0i input of the device. See Figure 5.
ST-BUS
GCI mode:
DLE3
DLE7
03
04
0000
12
12
H
H
for FOR0 register,
for FOR1 register.
H
for all FOR registers.
®
OF22
OF62
mode:
11
11
OF21
OF61
10
10
DLEn = 0, if clock rising edge is at the ¾ point of the bit cell.
DLEn = 1, if when clock falling edge is at the ¾ of the bit cell.
DLEn = 1, if when clock rising edge is at the ¾ of the bit cell.
DLEn = 0, if clock falling edge is at the ¾ point of the bit cell.
OF20
OF60
9
9
DLE2
DLE6
8
8
FOR0 Register
FOR1 Register
OF12
OF52
7
7
10
Description
OF11
OF51
6
6
OF10
OF50
5
5
DLE1
DLE5
4
4
OF02
OF42
COMMERCIAL TEMPERATURE RANGE
3
3
OF01
OF41
2
2
OF00
OF40
1
1
DLE0
DLE4
0
0