XRT83L314ES Exar, XRT83L314ES Datasheet - Page 40

• Manufacturer Part Number: XRT83L314ES
• Description: LIN Transceivers
• Manufacturer: Exar

Specifications of XRT83L314ES

• Product Category: LIN Transceivers
• Rohs: yes

XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
The XRT83L314 has the capability of providing the necessary chip selects for multiple 14-channel LIU devices.
The LIU is responsible for selecting itself, up to 5 additional LIU devices, or all 6 devices simultaneously for
permitting access to internal registers. The state of the chip select output pins is determined by a chip select
decoder controlled by the 3 MSBs of the address bus ADDR[10:8]. Only one LIU (Master) requires the
ADDR[10:8]. The other 5 LIU devices use the 8 LSBs for the direct address bus ADDR[7:0]. Figure 35 is a
simplified block diagram of connecting six 14-channel LIU devices for 84-channel applications. Selection of
the chip select outputs using ADDR[10:8] is shown in Table 13.
F
4.2
IGURE
Master
35. S
84-Channel T1/E1 Multiplexer/Mapper Applications
Chip Address A[10:8]
XRT83L314
Address A[7:0]
IMPLIFIED
CS[4:0]
Data [7:0]
1
B
CS
LOCK
XRT83L314
D
Slave
IAGRAM OF AN
ADDR[10:8]
0h (000)
1h (001)
2h (010)
4h (100)
5h (101)
2
3h (011)
6h (110)
7h (111)
T
ABLE
CS
XRT83L314
13: C
84-C
HIP
Slave
3
HANNEL
S
ELECT
36
CS
XRT83L314
A
A
Current Device (Master)
PPLICATION
SSIGNMENTS
A
All Devices Active
CTIVE
Slave
Reserved
4
Chip 1
Chip 2
Chip 3
Chip 4
Chip 5
C
HIP
CS
S
XRT83L314
ELECT
Slave
5
CS
XRT83L314
Slave
6