ds2156gn Maxim Integrated Products, Inc., ds2156gn Datasheet - Page 29

• Manufacturer Part Number: ds2156gn
• Description: Ds2156, Ds2156l, Ds2156ln T1/e1/j1 Single-chip Transceiver Tdm/utopia Ii Interface
• Manufacturer: Maxim Integrated Products, Inc.

Signal Name:
Signal Description:
Signal Type:
Must be low to read or write to the device. CS is an active-low signal.
Signal Name:
Signal Description:
Signal Type:
In nonmultiplexed bus operation (MUX = 0), serves as the upper address bit. In multiplexed bus operation
(MUX = 1), serves to demultiplex the bus on a positive-going edge.
Signal Name:
Signal Description:
Signal Type:
WR is an active-low signal.
Signal Name:
Signal Description:
Signal Type:
Low to enable TDM backplane. High to enable UTOPIA backplane.
3.4
Signal Name:
Signal Description:
Signal Type:
Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for
more details.
Signal Name:
Signal Description:
Signal Type:
Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for
more details.
Signal Name:
Signal Description:
Signal Type:
Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for
more details.
Extended System Information Bus
CS
Chip Select
Input
ALE(AS)/A7
Address Latch Enable (Address Strobe) or A7
Input
WR (R/W)
Write Input(Read/Write)
Input
TUSEL
TDM/UTOPIA Backplane Select
Input
ESIBS0
Extended System Information Bus Select 0
Input/Output
ESIBS1
Extended System Information Bus Select 1
Input/Output
ESIBRD
Extended System Information Bus Read
Input/Output
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