TXC-06101AILQ Transwitch Corporation, TXC-06101AILQ Datasheet - Page 18

• Manufacturer Part Number: TXC-06101AILQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-06101AILQ

• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: PQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

If the frame rate of the SPE is too fast with respect to the TOH, then the alignment of the envelope is periodi-
cally advanced in time and the pointer is decremented by one. This operation is indicated by inverting Bits 8,
10, 12, 14 and 16 (D Bits) of the Pointer Word. A negative stuff byte appears in the H3 Byte Position in the
frame containing the inverted D Bits. Subsequent pointers contain the new offset. This is shown in Figure 13.
Proprietary TranSwitch Corporation Information for use Solely by its Customers
Value = P + 1
Value = P - 1
Pointer w/
Value = P
Pointer w/
Pointer w/
Pointer w/
Value = P
Pointer w/
Pointer w/
Inverted
Inverted
“D” Bits
“I” Bits
H1 H2
H1 H2
H1 H2
H1 H2
H1 H2
H1
H1 H2
H1 H2
Figure 13. Negative Pointer Justifications
Figure 12. Positive Pointer Justifications
TOH
TOH
H2
H3
H3
H3
H3
H3
H3
H3
H3
Negative
Stuff Byte
(Data)
Positive
Stuff Byte
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J1
J1
DATA SHEET
J1
J1
J1
J1
SPE
SPE
SPE
SPE
SPE
SPE
SPE
SPE
SPE
SPE
SPE
SPE
Frame n
Frame n+1
Frame n+2
Frame n
Frame n+1
Frame n+2
t = 0
t = 125 S
t = 250 S
t = 375 S
t = 0
t = 125 S
t = 250 S
t = 375 S
TXC-06101
Ed. 3, April 2001
TXC-06101-MB
PHAST-1