CMX228S1 MX-COM, Inc., CMX228S1 Datasheet - Page 6

• Manufacturer Part Number: CMX228S1
• Description: ISDN data and telephony protocol engine with x.25
• Manufacturer: MX-COM, Inc.

ISDN Data and Telephony Protocol Engine with x.25
MX-COM, Inc
4800 Bethania Station Road, Winston-Salem, NC, 27105-1201, USA
www.mxcom.com tel: [phone] 744 5050 fax: [phone]
All trademarks and service marks are held by their respective companies
S1 Package
Pin No.
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
71
72
73
74
75
SER-CLK
PSBRES
API-RXD
API-TXD
API-INT
PSBINT
REPLY
AV
AV
AV
RING1
ILINE1
DV
DV
RING
CLIP1
Name
DATA
RXD1
ASTB
CMD-
AV
AV
A/D3
A/D2
A/D1
A/D0
CS
NMI
IRQ
N/C
N/C
N/C
ILFI
N/C
NC
REF1
REF2
REF3
~
DD0
SS0
DD
SS
1
1
Signal
bi-directional Memory and Peripheral Address and Data Bus
bi-directional Memory and Peripheral Address and Data Bus
bi-directional Memory and Peripheral Address and Data Bus
bi-directional Memory and Peripheral Address and Data Bus
output
power
output
output
output
output
output
output
output
power
output
output
output
output
output
power
power
power
output
output
power
power
Type
input
input
input
input
input
input
input
input
input
input
Address/Data Bus Strobe (data bus selected if low)
The digital negative supply rail (ground)
For manufacturer's use only. Connect to DV
HDLC Chip Reset
Do not make any connection to this pin
Do not make any connection to this pin
API/RS232 Port 2 Rx Data (inactive = high)
API/RS232 Port 2 Tx Data (high when inactive)
Do not make any connection to this pin
Do not make any connection to this pin
ISDN Line Failure Indicator
The digital positive supply rail. Levels and voltages are
dependent upon this supply. This pin should be decoupled to
DV
POTS Port Ringing Generator (low when not ringing)
POTS Port Ringing Generator (high when not ringing)
POTS Port 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 Hook Switch Status Detector (on-hook = low)
For manufacturer’s use only. Connect to DV
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
AV
A/D Reference Voltage. Connect to AV
The negative analog supply rail (ground)
CMX605 C-BUS Interface (chip select for POTS Port)
Do not make any connection to this pin
D/A Reference Voltage. Connect to AV
D/A Reference Voltage. Connect to AV
For manufacturer's use only. Connect to DV
API Interrupt (inactive = high)
CMX605 C-BUS Interface - Interrupt (inactive = high)
HDLC Chip Interrupt
RS232 Port 1 Received Data - used for autobauding
SS
SS
by a capacitor
by a capacitor
6
Description
2000 Chiron Technology Limited
DD
DD
SS
CMX228 Advance Information
directly
directly
directly
SS
SS
SS
directly
directly
directly
Doc. # 20480216.001
2000 MX-COM, Inc.