XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 106

• Manufacturer Part Number: XRT75R12DIB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12DIB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V to 5 V
• Package / Case: TBGA-420
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
Figure 50
(e.g., the very first byte of the STS-1 SPE) within the Envelope Capacity.
N
F
REFLECTING THE LOCATION OF THE
F
WITHIN THE
1 F
OTES
IGURE
IGURE
RAME
1. If the content of the "Pointer Bits" is "0x00" then the J1 byte is located immediately after the H3 byte, within the
2. If the contents of the 10-bit expression exceed the value of 0x30F (or 782, in decimal format) then it does not
:
49. T
50. T
Envelope Capacity.
contain a valid pointer value.
relates the contents within these 10 bits (within the H1 and H2 bytes) to the location of the J1 byte
H1
HE
HE
MSB
AND
N
B
R
IT
ELATIONSHIP BETWEEN THE
H2
-
N
FORMAT OF THE
D10
BYTES
A1
B1
D1
H1
B2
D4
D7
S1
N
H1 Byte
)
D11
AND THE
M0
N
TOH
A2
D2
H2
K1
D5
D8
E1
J1
S
16-B
BYTE
C1/J0
D12
D3
H3
K2
D6
D9
F1
E2
L
OCATION OF THE
S
IT
,
DESIGNATED
W
C
ORD
X
522
609
696
174
261
348
435
87
ONTENTS OF THE
0
(
X
CONSISTING OF THE
102
523
610
697
175
262
349
436
10 Bit Pointer Expression
88
1
X
The Pointer Value “0” is immediately
J1 B
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
X
YTE WITHIN THE
"P
After the H3 byte
* *
* *
* *
* *
* *
* *
* *
* *
* *
OINTER
X
H2 Byte
H1
X
B
AND
ITS
X
607
694
781
172
259
346
433
520
85
E
" (
H2
NVELOPE
E
.
X
BYTES
G
.,
608
695
782
173
260
347
434
521
86
THE
X
)
LSB
C
WITH THE
APACITY OF AN
10-
X
BIT EXPRESSION
10
REV. 1.0.3
BITS
STS-
,