MT90710
Pin Description
Pin #
38
39
40
41
Name
MODE2
MODE1
MODE0
STo0
Description
Operating Mode Select 2 (Input Type 1).
See Table 1.
Operating Mode Select 1 (Input Type 1).
See Table 1.
Operating Mode Select 0 (Input Type 1).
See Table 1.
Preliminary Information
Serial, 32 Channel, 2.048 Mb/s link 0 (Output Type 3).
Output is active only when
receiver detects the synchronization pattern on RxDATA input stream; output is high
impedance during loss of synchronization.
Positive Power Supply.
Nominally 5 volts.
Power Supply Ground.
Nominally 0 volts.
Serial, 32 Channel, 2.048 Mb/s link 2 (Output Type 3).
Output active only when
receiver detects the synchronization pattern on RxDATA input stream; high impedance
output during loss of synchronization.
Serial, 32 Channel, 2.048 Mb/s link 3 (Output Type 3).
Output active only when
receiver detects the synchronization pattern on RxDATA input stream; high impedance
output during loss of synchronization.
Serial, 32 Channel, 2.048 Mb/s link 4 (Output Type 3).
Output active only when
receiver detects the synchronization pattern on RxDATA input stream; high impedance
output during loss of synchronization.
Frame Buffer RAM Write Enable (Output Type 2).
Generates a low going strobe dur-
ing valid RAM write access.
Serial, 32 Channel, 2.048 Mb/s link 1 (Output Type 3).
Output active only when
receiver detects the synchronization pattern on RxDATA input stream; high impedance
output during loss of synchronization.
System 8 kHz Reference Frame Pulse
(Bi-directional;
Input and Output Types 3).
When in controller mode this is an input accepting the system reference pulse. In
peripheral mode this is an output supplying the system an 8 kHz reference frame pulse.
Asynchronous 32 kHz Signal 1 (Open Collector, Output Type 3).
Sourced from the
far-end DIN32K input.
Transmit 4B/5B, NRZI Encoded Serial Data (Output Type 3).
Power Supply Ground.
Nominally 0 volts.
Internally Connected (Output Type 1).
Drives continuous logic 1. Leave open circuit.
Positive Power Supply.
Nominally 5 volts.
Power On Reset (Input Type 2).
Active low.
Frame Buffer Data Bit 7 (Bidirectional; Input Type 1 and Output Type 2).
Data bit 7.
4.096 MHz Reference Clock (Bidirectional; Input and Output Types 3).
Input used
by PLL in controller mode and derived from the system. In peripheral mode this is an
output supplying the system 4.096 MHz reference clock.
Frame Buffer Data Bit 6 (Bidirectional; Input Type 1 and Output Type 2).
Data bit 6.
Frame Buffer Data Bit 5 (Bidirectional; Input Type 1 and Output Type 2).
Data bit 5.
Asynchronous 8 kHz Signal 0 (Input Type 1).
Transmitted to the far-end DOUT8K0
output.
Frame Buffer Data Bit 4 (Bidirectional; Input Type 1 and Output Type 2).
Data bit 4.
42
43
44
V
DD
V
SS
STo2
45
STo3
46
STo4
47
48
FBWE
STo1
49
F0b
50
51
52
53
54
55
56
57
DOUT32K
TxDATA
V
SS
IC
V
DD
POR
FBDATA7
C4b
58
59
60
61
FBDATA6
FBDATA5
DIN8K0
FBDATA4
5-6
MITEL [ MITEL NETWORKS CORPORATION ]
