CMX208 查看數據表（PDF） - MX-COM Inc

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CMX208

ISDN Dual Telephony Protocol Engine

MX-COM Inc  

ISDN Dual Telephony Protocol Engine

5

CMX208 Advance Information

S1 Package

Pin No.

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

Signal

Name

Type

A/D4 bi-directional

A/D3 bi-directional

A/D2 bi-directional

A/D1 bi-directional

A/D0 bi-directional

ASTB

output

DVSS0

~

power

input

PSBRES

output

RING2

output

RING2

output

API-RXD

input

API-TXD

output

CLIP2

output

B1/ B2

ILFI

DVDD0

output

output

power

RING1

RING1

CLIP1

output

output

output

ILINE1

ILINE2

REPLY

CMD-

DATA

SER-CLK

AVDD

input

input

input

output

output

power

AVREF1

AVSS

CS1

CS2

AVREF2

AVREF3

power

power

output

output

power

power

Description

Memory and Peripheral Address and Data Bus

Memory and Peripheral Address and Data Bus

Memory and Peripheral Address and Data Bus

Memory and Peripheral Address and Data Bus

Memory and Peripheral Address and Data Bus

Address/Data Bus Strobe (data bus selected if low)

The digital negative supply rail (ground)

For manufacturer's use only. Connect to DVSS directly

HDLC Chip Reset

POTS Port 2 Ringing Generator (low when not ringing)

POTS Port 2 Ringing Generator (high when not ringing)

API/RS232 Port Rx Data (inactive = high)

API/RS232 Port Tx Data (high when inactive)

POTS Port 2 Line Voltage Adjustment (low when sending FSK

to a Caller Display unit. If low, it makes the SLIC present a

high impedance to the POTS line)

B-channel Select (high selects channel B1).

ISDN Line Failure Indicator

The digital positive supply rail. Levels and voltages are

dependent upon this supply. This pin should be decoupled to

DVSS by a capacitor

POTS Port 1 Ringing Generator (low when not ringing)

POTS Port 1 Ringing Generator (high when not ringing)

POTS Port 1 Line Voltage Adjustment (low when sending FSK

to a Caller Display unit. If low, it makes the SLIC present a

high impedance to the POTS line)

POTS Port 1 Hook Switch Status Detector

(on-hook = low)

POTS Port 2 Hook Switch Status Detector

(on-hook = low)

CMX605 C-BUS Interface - Reply Data

CMX605 C-BUS Interface - Command Data

CMX605 C-BUS Interface - Serial Clock

The positive analog supply rail. Levels and voltages are

dependent upon this supply. This pin should be decoupled to

AVSS by a capacitor

A/D Reference Voltage. Connect to AVDD directly

The negative analog supply rail (ground)

CMX605 C-BUS Interface (chip select POTS Port 1)

CMX605 C-BUS Interface (chip select POTS Port 2)

D/A Reference Voltage. Connect to AVDD directly

D/A Reference Voltage. Connect to AVSS directly

MX-COM, Inc

4800 Bethania Station Road, Winston-Salem, NC, 27105-1201, USA

www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054

All trademarks and service marks are held by their respective companies

2000 MX-COM, Inc.

Doc. # 20480214.001

2000 Chiron Technology Limited

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