T7115AMCD LSI, T7115AMCD Datasheet - Page 17

• Manufacturer Part Number: T7115AMCD
• Manufacturer: LSI

Specifications of T7115AMCD

• Package Type: PLCC
• Lead Free Status / Rohs Status: Not Compliant

Data Sheet
April 1997
Lucent Technologies Inc.
Functional Description
Note: abcdefgh are not the same as ABCDEFGH due to HDLC processing.
TLBIT = 1
(TRANSMIT LSB FIRST)
RLBIT = 1
(RECEIVE LSB FIRST)
TLBIT = 0
(TRANSMIT MSB FIRST)
RLBIT = 0
(RECEIVE MSB FIRST)
BIT 7
BIT 7
BIT 7
BIT 7
MSB
MSB
MSB
MSB
DIRECTION OF RECEPTION
DIRECTION OF RECEPTION
RECEIVE FIFO
RECEIVE FIFO
TRANSMIT FIFO
TRANSMIT FIFO
a b c d e f g h
a b c d e f g h
a b c d e f g h
a b c d e f g h
BIT 0
BIT 0
BIT 0
BIT 0
LSB
LSB
LSB
LSB
PROCESSES LSB FIRST
PROCESSES LSB FIRST
EXPECTS LSB FIRST
EXPECTS LSB FIRST
TRANSMITTER HDLC
TRANSMITTER HDLC
(R13) TRANSMITTER BIT MASK
(R13) TRANSMITTER BIT MASK
RECEIVER HDLC
RECEIVER HDLC
(R12) RECEIVER BIT MASK
(R12) RECEIVER BIT MASK
(continued)
RBM7
RBM7
TBM7
TBM7
0 0 0 0 0 0 1 1
0 0 0 0 0 0 1 1
0 0 0 0 0 0 1 1
0 0 0 0 0 0 1 1
HDLC
HDLC
HDLC
HDLC
Figure 8. 16 kbits/s Operation
RBM0
RBM0
TBM0
TBM0
D
B
D
B
G
E
C
A
H
F
G
E
C
A
H
F
D
B
G
E
C
A
D
B
G
E
C
A
H
F
H
F
T7121 HDLC Interface for ISDN (HIFI-64)
ARE IGNORED BY THE RECEIVER.
ARE IGNORED BY THE RECEIVER.
FIRST BIT RECEIVED
FIRST BIT RECEIVED
DIRECTION OF TRANSMISSION
DIRECTION OF TRANSMISSION
*X = DON'T CARE. THESE BITS
*X = DON'T CARE. THESE BITS
TIME-SLOT DATA
TIME-SLOT DATA
TIME-SLOT DATA
TIME-SLOT DATA
H G X X X X X X*
X*X X X X X G H
F E X X X X X X
D C X X X X X X
B A X X X X X X
X X X X X X E F
X X X X X X C D
X X X X X X A B
3 3 3 3 3 3 A B
3 3 3 3 3 3 * G H
3 3 3 3 3 3 E F
3 3 3 3 3 3 C D
H G 3 3 3 3 3 3*
F E 3 3 3 3 3 3
D C 3 3 3 3 3 3
B A 3 3 3 3 3 3
*3 = 3-STATE.
*3 = 3-STATE.
FIRST BIT
TRANSMITTED
FIRST BIT
TRANSMITTED
1ST TIME SLOT
2ND TIME SLOT
3RD TIME SLOT
4TH TIME SLOT
1ST TIME SLOT
2ND TIME SLOT
3RD TIME SLOT
4TH TIME SLOT
1ST TIME SLOT
2ND TIME SLOT
3RD TIME SLOT
4TH TIME SLOT
1ST TIME SLOT
2ND TIME SLOT
3RD TIME SLOT
4TH TIME SLOT
5-5034
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