scn68652 NXP Semiconductors, scn68652 Datasheet - Page 2

• Manufacturer Part Number: scn68652
• Description: Multi-protocol Communications Controller Mpcc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DESCRIPTION
The SCN2652/68652 Multi-Protocol Communications Controller
(MPCC) is a monolithic n-channel MOS LSI circuit that formats,
transmits and receives synchronous serial data while supporting
bit-oriented or byte control protocols. The chip is TTL compatible,
operates from a single +5V supply, and can interface to a processor
with an 8 or 16-bit bidirectional data bus.
APPLICATIONS
PIN CONFIGURATION
1995 May 01
Intelligent terminals
Line controllers
Network processors
Front end communications
Remote data concentrators
Communication test equipment
Computer to computer links
Multi-protocol communications controller (MPCC)
RxDA
RxSA
DB10
DB12
DB13
DB09
DB11
DB14
DB15
DB08
RxSI
RxC
RxA
RxE
GND
R/W
S/F
CE
A2
A1
15
16
17
18
19
20
10
11
12
13
14
1
2
3
4
5
6
7
8
9
TOP VIEW
DIP
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
MM
TxC
TxSQ
TxE
TxU
TxBE
TxA
RESET
V
DB00
DB01
DB02
DB03
DB04
DB05
DB06
DB07
DBEN
BYTE
A0
CC
Figure 1. Pin Configuration
2
FEATURES
DC to 2Mbps data rate
Bit-oriented protocols (BOP): SDLC, ADCCP, HDLC
Byte-control protocols (BCP): DDCMP, BISYNC (external CRC)
Programmable operation
– 8 or 16-bit tri-state data bus
– Error control – CRC or VRC or none
– Character length – 1 to 8 bits for BOP or 5 to 8 bits for BCP
– SYNC or secondary station address comparison for BCP-BOP
– Idle transmission of SYNC/FLAG or MARK for BCP-BOP
Automatic detection and generation of special BOP control
sequences, i.e., FLAG, ABORT, GA
Zero insertion and deletion for BOP
Short character detection for last BOP data character
SYNC generation, detection, and stripping for BCP
Maintenance mode for self-testing
TTL compatible
Single +5V supply
CORNER
NOTE: DB00 is least significant bit, highest number
(that is, DB15, A2) is most significant bit.
INDEX
Pin Function
17
7
10 GND
11 DB08
12 NC
13 DB09
14 DB10
15 DB11
16 DB12
17 DB13
18 DB14
19 DB15
20 R/W
21 A2
22 A1
1
2
3
4
5
6
7
8
9
18
6
NC
CE
RxC
RxSI
S/F
RxA
RxDA
RxSA
RxE
TOP VIEW
PLCC
1
SCN2652/SCN68652
Pin Function
23 NC
24 A0
25 BYTE
26 DBEN
27 DB07
28 DB06
29 DB05
30 DB04
31 DB03
32 DB02
33 DB01
34 NC
35 DB00
36 V
37 RESET
38 TxA
39 TxBE
40 TxU
41 TxE
42 TxSQ
43 TxC
44 MM
40
28
CC
39
29
SD00057
Product specification
853-1068 15179