MT9072 Zarlink Semiconductor, Inc., MT9072 Datasheet - Page 25

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

Pin Description (continued)
Advance Information
Notes:
1.
2.
3.
4.
5.
6.
7.
LQFP
206
207
208
All inputs are CMOS with CMOS compatible logic levels.
All unused inputs should be tied low.
All outputs are CMOS and are compatible with CMOS logic levels.
See AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels for input and output voltage thresholds.
The number enclosed in parentheses following the pin name identifies the framer as follows:
[0] - framer 0, [1] - framer 1, [2] - framer 2,... [7] - framer 7
The “Y” character in the register address symbolizes the upper 4 address bits (A
within the MT9072 as follows:
[0] 0000 - framer 0, [1] 0001 - framer 1,... [2] 0010 - framer 2,... [7] 0111 - framer 7
[8] 1000 - all 8 framers.
Pin types are as follows:
I
IP
O
I/O
OH
OD
--
Pin #
- input(5 V tolerant input
- input with a pullup or pulldown, these are 3 V tolerant inputs.
- output
- input and output
- output and high impedance
- output open drain
LBGA
B3
B2
C3
B1
Name
TRST
TMS
TCK
RSV
Type
IPu Test Mode Select Input. The logic signals received at the TMS input
IPu Test Clock Input. TCK provides the clock for the test logic. The TCK
IPu Test Reset. When zero, the JTAG scan structure is reset. When one,
--
are interpreted by the TAP Controller to control the test operations.
The TMS signals are sampled at the rising edge of the TCK pulse.
Internally pulled up to V
section on JTAG.
does not interfere with any on-chip clocks and thus remains
independent. The TCK permits shifting of test data into or out of the
Boundary-Scan register cells concurrently with the operation of the
device and without interfering with the on-chip logic. Internally pulled
up to V
See Figure 70.
the JTAG scan structure operates normally. Internally pulled up to
V
device reset condition requires this input to be held low for a minimum
of 100ns. This input is should be set to zero during initial power up,
then set to one if the JTAG port is to be used, otherwise, it may be
permanently set to zero.
This pin should be tied low.
DD
. See the pin description for TDI and the section on JTAG. A valid
DD
. See the pin description for TDI and the section on JTAG.
Description (see Notes 1 to 7)
DD
11
A
. See the pin description for TDI and the
10
A
9
A
8
) which identify the particular framer addressed
MT9072
25