TXC-06101AILQ Transwitch Corporation, TXC-06101AILQ Datasheet - Page 166

• 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

Input TOH Storage
On a per frame basis all Overhead Bytes are written into RAM Segment 105[H] - 11F[H] for µPro access. The
Memory Locations for the TOH Bytes are given in Table 20. In SPE-only mode these bytes will be "Don’t Care".
Input B1 Processing
When enabled by INHTB1C (CR15; 1DF[H], Bit 3), the B1 Byte is compared to a calculated B1 value. The cal-
culation is Even Parity, independently performed, in parallel, over the eight bit positions of all incoming bytes.
The errors (up to eight per frame) are accumulated in an eight-bit Roll Over counter designated Tx B1 Error
Count (146[H]) which is readable by the µPro. There is no Counter overflow indicator.
Input B2 Processing
B2 Errors are accumulated in the same manner as with the B1 Byte, except that the nine SOH Bytes are
excluded, the function is enabled by INHTB2C (CR15; 1DF[H], Bit 2) and the Roll Over counter is designated
Tx B2 Error Count (147[H]). There is no Counter overflow indicator.
Input E1 Processing
A Transmit Terminal E1 Alarm - TTE1 (SR5; 1E8/9/C[H], Bit 4) is extracted from the E1 Byte, when so optioned
by TE2A (CR11; 1FB[H], Bit 1). TTE1 detection assumes that some terminal side entity has detected an AIS
condition and uses the E1 Byte for in-band communication of the condition. TTE1 can be used for autonomous
generation of AIS at the Tx Line Port.
Section
Line
Proprietary TranSwitch Corporation Information for use Solely by its Customers
Byte
D10
D1
H1
D4
D7
A1
B1
B2
Z1
Location
Table 20. Terminal TOH Locations
105[H]
111[H]
108[H]
10B[H]
10E[H]
11A[H]
116[H]
114[H]
115[H]
- 166 of 196 -
DATA SHEET
Byte
D11
D2
H2
D5
D8
A2
E1
K1
Z2
Location
10C[H]
11E[H]
10F[H]
11B[H]
117[H]
118[H]
106[H]
112[H]
109[H]
Byte
D12
C1
F1
D3
H3
K2
D6
D9
E2
Location
11C[H]
11D[H]
10D[H]
11F[H]
10A[H]
107[H]
113[H]
110[H]
119[H]
TXC-06101
Ed. 3, April 2001
TXC-06101-MB
PHAST-1