MT9072 Zarlink Semiconductor, Inc., MT9072 Datasheet - Page 21

• Manufacturer Part Number: MT9072
• Description: Octal T1-E1-J1 Framer
• Manufacturer: Zarlink Semiconductor, Inc.

Pin Description (continued)
Advance Information
LQFP
118
138
158
38
58
78
19
99
Pin #
LBGA
N10
G16
R13
L14
B14
M2
T4
H1
Name
CKi[1]
CKi[2]
CKi[3]
CKi[5]
CKi[6]
CKi[7]
FPi[0]
FPi[4]
Type
I
I
System Clock. In 2.048Mbit/s ST-BUS mode this pin accepts the
clock that is used to time the transmit side and receive side of the
framer. In IMA mode it accepts the clock that is used to time the
transmit side of the framer only. Pins CKi[0-7] are used to time
Framers[0-7] respectively. The CKi clock rate is determined by control
bits at (Address 900). This pin has no function in 8.192Mbit/s mode.
In 2.048Mbit/s ST-BUS mode this pin accepts the ST-BUS type
4.096MHz clock that is used to time the data appearing at pins DSTi,
CSTi, DSTo and CSTo. See Figure 24.
In T1 IMA mode this pin accepts the 1.544MHz clock that is used to
time the transmit data appearing at pin DSTi. IMA mode is selected by
setting the IMA bit (Address Y00) to 1. See Figure 32.
In E1 IMA mode this pin accepts the ST-BUS type 4.096MHz clock
that is used to time the transmit data appearing at pins DSTi. IMA
mode is selected by setting the IMA bit (Address Y00) to 1. See Figure
51.
In T1/E1 IMA mode the receive data stream is clocked out of pin DSTo
by the clock output by pin RxDLC.
Frame Pulse. This pin accepts a frame pulse that sets the basic frame
boundary for the transmit and receive sides of the framer. The clock
rate is determined by control bits at (Address 900)
In 2.048Mbit/s mode and in IMA mode, operation is the same as that
described for pins FPi[1-3].
In 8.192Mbit/s mode this pin accepts an 8.192Mbit/s ST-BUS type
frame pulse which sets the frame boundary common to four framers.
FPi[0] is used to set the frame boundary for Framers[0-3] and FPi[4] is
used to set the frame boundary for Framers[4-7]. See Figure 26.
8.192Mbit/s operation is not available in IMA mode.
Description (see Notes 1 to 7)
MT9072
21