MT9300AL datasheet(3/29 Pages) MITEL

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Advance Information

MT9300

3 to 7, 14 to 16,

28 to 31, 33 to 36,

39 to 42, 60 to 62,

64 to 75, 78, 80,

82 to 86, 88 to 92,

94 to 97, 99 to102,

104, 123,

125 to 132, 136,

137, 150,151,160

No connection. These pins must be left open for normal operation.

IRQ

Interrupt Request (Open Drain Output). This output goes low when an interrupt

occurs in any channel. IRQ returns high when all the interrupts have been read

from the Interrupt FIFO Register. A pull-up resistor (1K typical) is required at this

output.

Data Strobe (Input). This active low input works in conjunction with CS to enable

the read and write operations.

Chip Select (Input). This active low input is used by a microprocessor to activate

the microprocessor port.

R/W

Read/Write (Input). This input controls the direction of the data bus lines (D7-D0)

during a microprocessor access.

DTA

Data Transfer Acknowledgment (Open Drain Output). This active low output

indicates that a data bus transfer is completed. A pull-up resistor (1K typical) is

required at this output.

18, 19, 20, 21,

23, 24, 25, 26

D0 - D3,

D4 - D7

Data Bus D0 - D7 (Bidirectional). These pins form the 8-bit bidirectional data bus

of the microprocessor port.

44, 45,46, 47,49,

50, 51,52,54, 55,

A0 - A10

Address A0 to A10 (Input). These inputs provide the A10 - A0 address lines to

the internal registers.

105

ODE

Output Drive Enable (Input). This input pin is logically AND’d with the ODE bit-6

of the Main Control Register. When both ODE bit and ODE input pin are high, the

Rout and Sout ST-BUS outputs are enabled.

When the ODE bit is low or the ODE input pin is low, the Rout and Sout ST-BUS

outputs are high impedance.

106

Sout

Send PCM Signal Output (Output). Port 1 TDM data output streams.

Sout pin outputs serial TDM data streams at 2.048 Mb/s with 32 channels per

stream.

107

Rout

Receive PCM Signal Output (Output). Port 2 TDM data output streams. Rout pin

outputs serial TDM data streams at 2.048 Mb/s with 32 channels per stream.

109

Sin

Send PCM Signal Input (Input). Port 2 TDM data input streams.

Sin pin receives serial TDM data streams at 2.048 Mb/s with 32 channels per

stream.

110

Rin

Receive PCM Signal Input (Input). Port 1 TDM data input streams.

Rin pin receives serial TDM data streams at 2.048 Mb/s with 32 channels per

stream.

111

F0i

Frame Pulse (Input). This input accepts and automatically identiﬁes frame

synchronization signals formatted according to ST-BUS or GCI interface

speciﬁcations.

112

C4i

Serial Clock (Input). 4.096 MHz serial clock for shifting data in/out on the serial

streams (Rin, Sin, Rout, Sout).

Pin Description (continued)

Pin #

Name

Description

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