T7115AMCD LSI, T7115AMCD Datasheet - Page 37

• 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
Table 16. Register R9—Bit Offset Control Register
Register
R9—B7
TBOF2
R9
R9
R9
R9
(0)
B(1—3)
B(5—7)
Bit
B0
B4
R9—B6
TBOF1
(0)
RBOF0—RBOF2 Receiver Bit Offset. These 3 bits provide a fixed offset relative to the
TBOF0—TBOF2 Transmitter Bit Offset. These 3 bits provide a fixed offset relative to
Symbol
CLKRI
CLKXI
R9—B5
TBOF0
(continued)
(0)
Receive Clock Invert. When this bit is cleared to 0, data is received
(latched) on the falling edge of CLKR (or CLKX if R5 B6 is set to 1). If
this bit is set to 1, data is received (latched) on the rising edge of
CLKR (or CLKX).
position of the first receivable bit after the frame-sync signal. The posi-
tion of the first receivable bit is dependent upon the clock edge used
for latching received data. See Figures 13—21 for placement of the
first receivable bit. The offset is the number of receive data periods
needed to align with the first bit of a time slot counting from the first
receivable bit. All subsequent receptions also follow this offset. See
Table 6 for an example of using RBOF.
Transmit Clock Invert. When this bit is cleared to 0 (default), data is
transmitted on the falling edge of CLKX. If this bit is set to 1, data is
transmitted on the rising edge of CLKX.
the position of the first transmittable bit position after the frame-
synchronization pulse. The position of the first transmittable bit
varies with the edge of CLKX used for data transmission. See
Figures 13—21 for placement of the first transmittable bit position.
The offset is the number of transmit data periods needed to align
with the first bit of a time slot. All subsequent transmissions also follow
this offset. See Figure 5 for an example of using TBOF.
R9—B4
CLKXI
(0)
R9—B3
RBOF2
T7121 HDLC Interface for ISDN (HIFI-64)
(0)
Name/Function
R9—B2
RBOF1
(0)
R9—B1
RBOF0
(0)
R9—B0
CLKRI
(1)
37