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DS21Q43ATN Schematic ( PDF Datasheet ) - Dallas Semiconducotr

Teilenummer DS21Q43ATN
Beschreibung Quad E1 Framer
Hersteller Dallas Semiconducotr
Logo Dallas Semiconducotr Logo 




Gesamt 30 Seiten
DS21Q43ATN Datasheet, Funktion
DS21Q43A
Quad E1 Framer
www.dalsemi.com
FEATURES
§ Four E1 (CEPT or PCM-30) /ISDN-PRI
framing transceivers
§ All four framers are fully independent;
transmit and receive sections of each framer
are fully independent
§ Frames to FAS, CAS, CCS, and CRC4
formats
§ 8-bit parallel control port that can be
connected to either multiplexed or non-
multiplexed buses
§ Each of the four framers contains dual two-
frame elastic stores that can connect to
asynchronous or synchronous backplanes up
to 8.192 MHz
§ Easy access to Si and Sa bits
§ Extracts and inserts CAS signaling
§ Large counters for bipolar and code
violations, CRC4 code word errors, FAS
word errors, and E-bits
§ Programmable output clocks for Fractional
E1, per channel loopback, H0 and H12
applications
§ Detects and generates AIS, remote alarm, and
remote multiframe alarms
§ Pin-compatible with DS21Q41B Quad T1
Framer
§ 5V supply; low power CMOS
§ Available in 128-pin TQFP
§ Industrial (-40°C to +85°C) grade version
available (DS21Q43ATN)
FUNCTIONAL DIAGRAM
RECEIVE
FRAMER
TRANSMIT
FORMATTER
ELASTIC
STORE
ELASTIC
STORE
FRAMER #0
FRAMER #1
FRAMER #2
FRAMER #3
CONTROL PORT
ACTUAL SIZE
QUAD
E1
FRAMER
DESCRIPTION
The DS21Q43A combines four of the popular DS2143 E1 Controllers onto a single monolithic die. The
“A” designation denotes that some new features are available in the Quad version which were not
available in the single E1 device. The added features in the DS21Q43A are listed in Section 1. The
DS21Q43A offers a substantial space savings to applications that require more than one E1 framer on a
card. The Quad version is only slightly bigger than the single E1 device. All four framers in the
DS21Q43A are totally independent; they do not share a common framing synchronizer. Also, the transmit
and receive sides of each framer are totally independent. The dual two-frame elastic stores contained in
each of the four framers can be independently enabled and disabled as required. The DS21Q43A meets
all of the latest specifications, including CCITT/ITU G.704, G.706, G.962, and I.431 as well as ETS 300
011 and ETS 300 233.
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DS21Q43ATN Datasheet, Funktion
127 TFSYNC0
33 TFSYNC1
67 TFSYNC2
93 TFSYNC3
125 TSYSCLK0
31 TSYSCLK1
65 TSYSCLK2
91 TSYSCLK3
DS21Q43A
I Transmit Sync for Elastic Store in Framer 0
I Transmit Sync for Elastic Store in Framer 1
I Transmit Sync for Elastic Store in Framer 2
I Transmit Sync for Elastic Store in Framer 3
I Transmit System Clock for Elastic Store in Framer 0
I Transmit System Clock for Elastic Store in Framer 1
I Transmit System Clock for Elastic Store in Framer 2
I Transmit System Clock for Elastic Store in Framer 3
RECEIVE PIN LIST Table 1-2
PIN SYMBOL TYPE
DESCRIPTION
6 RCLK0
I Receive Clock for Framer 0
40 RCLK1
I Receive Clock for Framer 1
74 RCLK2
I Receive Clock for Framer 2
100 RCLK3
I Receive Clock for Framer 3
13 RSER0
O Receive Serial Data from Framer 0
49 RSER1
O Receive Serial Data from Framer 1
83 RSER2
O Receive Serial Data from Framer 2
107 RSER3
O Receive Serial Data from Framer 3
9 RCHCLK0
O Receive Channel Clock from Framer 0
43 RCHCLK1
O Receive Channel Clock from Framer 1
77 RCHCLK2
O Receive Channel Clock from Framer 2
103 RCHCLK3
O Receive Channel Clock from Framer 3
10 RCHBLK0
O Receive Channel Block from Framer 0
44 RCHBLK1
O Receive Channel Block from Framer 1
80 RCHBLK2
O Receive Channel Block from Framer 2
104 RCHBLK3
O Receive Channel Block from Framer 3
5 RLCLK0
O Receive Link Clock from Framer 0
39 RLCLK1
O Receive Link Clock from Framer 1
73 RLCLK2
O Receive Link Clock from Framer 2
99 RLCLK3
O Receive Link Clock from Framer 3
4 RLINK0
O Receive Link Data from Framer 0
38 RLINK1
O Receive Link Data from Framer 1
72 RLINK2
O Receive Link Data from Framer 2
98 RLINK3
O Receive Link Data from Framer 3
8 RPOS0
I Receive Bipolar Data for Framer 0
42 RPOS1
I Receive Bipolar Data for Framer 1
76 RPOS2
I Receive Bipolar Data for Framer 2
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DS21Q43ATN pdf, datenblatt
DS21Q43A REGISTER MAP Table 1-6
ADDRESS R/W
REGISTER NAME
00 R BPV or Code Violation Count 1.
01 R BPV or Code Violation Count 2
02 R CRC4 Count 1/FAS Error Count 1.
03 R CRC4 Error Count 2.
04 R E-Bit Count 1/FAS Error Count 2.
05 R E-Bit Count 2.
06 R Status 1.
07 R Status 2.
08 R/W Receive Information.
09 to 0F
- Not Used.
(2) R Interrupt Status Register.
10 R/W Receive Control 1.
11 R/W Receive Control 2.
12 R/W Transmit Control 1.
13 R/W Transmit Control 2.
14 R/W Common Control 1.
15 R/W Test 1.
16 R/W Interrupt Mask.
17 R/W Interrupt Mask.
18 R/W Test 3.
19 R/W Test 2.
1A R/W Common Control 2.
1B R/W Common Control 3.
1C R/W Transmit Sa Control Register.
1D - Not Used.
1E R Synchronizer Status.
1F R Receive Non-Align Frame.
20 R/W Transmit Align Frame.
21 R/W Transmit Non-Align Frame.
22 R/W Transmit Channel Blocking 1.
23 R/W Transmit Channel Blocking 2.
24 R/W Transmit Channel Blocking 3.
25 R/W Transmit Channel Blocking 4.
26 R/W Transmit Idle 1.
27 R/W Transmit Idle 2.
28 R/W Transmit Idle 3.
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DS21Q43A

12 Page





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