MT90210 Просмотр технического описания (PDF) - Mitel Networks

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производитель

MT90210

Multi-Rate Parallel Access Circuit

Mitel Networks 

MT90210

Preliminary Information

A6

A7

VSS

A8

A9

VDD

A10

VSS

A11

A12

RBC

VDD

VSS

WBC

S0

S1

S2

VSS

VDD

S3

80 78 76 74 72 70 68 66 64 62 60 58 56 54 52 50

82

48

84

46

86

44

88

42

90

92

100 PIN PQFP

40

38

94

36

96

34

98

32

100 2

4

6

8 10 12 14 16 18 20 22 24 26 28 30

PLLAGND

LP1

LP2

PLLVSS

IDDTN

TD

VSS2

C16-

C16+

VDD2

MD0

MD1

MD2

F0i

TRST

TCK

TMS

TDI

HC4

SCLK

Note: the PQFP package meets the JEDEC standard MO-108, CC1.

Critical dimensions:

Lead pitch = 0.65mm,

Body Size = 14mm x 20mm,

Package size = 17.9mm x 23.9mm.

Figure 2 - Pin Connections

Pin Description

Pin

Name

Description

95-97,

100,

1-3,

6

7-9,

11-15

18-22,

24-26

27

29

30

S0-S2,

S3,

S4-S6,

S7

Serial Lines 0-7 (TTL compatible with internal pullups in the range 25 - 125kΩ).

Bidirectional, time division multiplexed serial streams. According to mode selected by

MD0-2 inputs, distinct data rates can be selected at the serial port. In mode 3, these lines

are configured as inputs only. In modes 1, 2, 4 and 5, these lines become bidirectional.

S8-S10, Serial Lines 8-15. See description for S0-S7 above. In mode 3, S8-S11 are inputs and

S11-S15 S12-S15 are outputs. In modes 1, 2, 4 and 5 these are bidirectional lines.

S16-S20 Serial Lines 16-23. See descripton for S0 - S7 above. For mode 3, these lines are outputs

S21-S23 and operate at 8.192 Mb/s rates. When operating in modes 1, 2, 4 and 5, these lines are

bidirectional.

TDO Boundary Scan Test Data Output.

RDin Read P0-P7 input clock. This input is used by the MT90210 to sample bytes coming in at

the parallel port P0-P7 lines. Typically, the user should connect CKout to this input.

OEser

Serial Port Output Enable (Input). On the parallel-to serial conversion direction, this input

is used by the MT90210 to know which time-slots on the serial output streams will be

placed in high-impedance. This input is sampled synchronously along with the parallel

input data before the parallel-to-serial conversion takes place. When low, output serial

channels are actively driven. When set high, the output bus drivers are disabled.

2-146

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