MT90863AG Zarlink, MT90863AG Datasheet - Page 9

• Manufacturer Part Number: MT90863AG
• Description: RATE CONVERSION DIGITAL SWITCH
• Manufacturer: Zarlink

Pin Description (continued)
128 MQFP
31-38,
18-25
40-47
51-54
55-62
Pin#
11
12
13
14
15
16
26
27
28
48
M1, N1, M2, N2,
M6, N5, N6, M7,
G1, H1, H2, H3,
M4, N4, M5, L6,
M3, L4, N3, L5,
M10, L10, N12,
J2, J1,J3, K1
M9, N11, L9,
N8, M8, N9,
M11, N13
144 BGA
Pin#
N10
G3
N7
E2
E1
F2
F3
F1
K2
L2
L1
D8 - D15
STi4 - 11
STi0 - 3
RESET
A0 - A7
D0 - 7,
Name
TRST
TCK
R/W
DTA
TDo
IC1
IC2
DS
CS
Test Serial Data Out (3.3 V Output): JTAG serial data is output on
this pin on the falling edge of TCK. This pin is held in a high
impedance state when JTAG scan is not enabled.
Test Clock (5 V Tolerant Input): Provides the clock to the JTAG test
logic.
Test Reset (3.3 V Input with internal pull-up): Asynchronously
initializes the JTAG TAP controller by putting it in the Test-Logic-Reset
state. This pin should be pulsed low on power-up, or held low
continuously, to ensure that the MT90863 is in the normal operation
mode.
Internal Connection 1 (3.3 V Input with internal pull-down):
Connect to V
Device Reset (5 V Tolerant Input): This input (active LOW) puts the
MT90863 in its reset state. This clears the device’s internal counters
and registers.
Internal Connection 2 (3.3 V Input):
Connect to V
Address 0 - 7 (5 V Tolerant Input): These lines provide the A0 to A7
address lines to the internal memories.
Data Strobe (5 V Tolerant Input): This active low input works in
conjunction with CS to enable the read and write operations.
Read/Write (5 V Tolerant Input): This input controls the direction of
the data bus lines (D0-D15) during a microprocessor access.
Chip Select (5 V Tolerant Input): Active low input used by a
microprocessor to activate the microprocessor port.
Data Bus 0 -15 (5 V Tolerant I/O): These pins form the 16-bit data
bus of the microprocessor port.
Data Transfer Acknowledgment (5 V Tolerant Three-state Output):
This active low output indicates that a data bus transfer is complete. A
pull-up resistor is required to hold a HIGH level when the pin is tri-
stated.
Serial Input Streams 0 to 3 (5 V Tolerant Inputs): In 2 Mb/s or
Subrate Switching mode, these inputs accept data rates of 2.048 Mb/s
with 32 channels per stream. In 8 Mb/s mode, these inputs accept data
rates of 8.192 Mb/s with 128 channels per stream.
Serial Input Streams 4 to 11 (5 V Tolerant Inputs): In 2 Mb/s or Sub-
rate Switching mode, these inputs accept data rates of 2.048 Mb/s
with 32 channels per stream.
Zarlink Semiconductor Inc.
MT90863
9
SS
SS
for normal operation.
for normal operation.
Description
Data Sheet