DJLXT380LE.B4 Cortina Systems Inc, DJLXT380LE.B4 Datasheet - Page 29

• Manufacturer Part Number: DJLXT380LE.B4
• Manufacturer: Cortina Systems Inc

Specifications of DJLXT380LE.B4

• Lead Free Status / RoHS Status: Not Compliant

2.11
2.12
Datasheet
Table 2. Operation Mode Summary
Table 3. Operating Mode
Interfacing with 5V logic
The LXT380 can interface with 5V logic. In this case, the VCCIO pins should connected to a 5V
power supply. The VCCIO pins feed the digital I/O pads making the input/output voltage levels
consistent with 5V logic. The internal logic will still operate from the 3.3V supply (VCC0 and
VCC1) to minimize the power consumption. See
Parallel Host Interface
The LXT380 incorporates a highly flexible 8-bit parallel microprocessor interface. The interface is
generic and is designed to support both non-multiplexed and multiplexed address/data bus systems
for Motorola and Intel bus topologies. Two pins (MUX and MOT/INTL) select four different
operating modes. See
The interface includes an address bus (A3–A0) and a data bus (D7–D0) for non-multiplexed
operation and an 8-bit address/data bus for multiplexed operation. WR, RD, R/W, CS, ALE, DS,
INT and RDY/ACK are used as control signals. A significant enhancement is an internal wait-state
† Hardware mode only.
MCLK
MUX
0
0
1
1
H
H
H
H
H
H
H
H
L
L
L
L
L
L
MOT/INTL
Clocked
Clocked
Clocked
Clocked
Clocked
TCLK
H
H
H
H
H
H
L
L
L
0
1
0
1
LOOP
Open
Open
Open
Open
Table
H
H
X
H
H
L
L
L
L
L
†
3.
Motorola Non-Multiplexed
Intel Non-Multiplexed
Motorola Multiplexed
Receive Mode
Data Recovery
Data Recovery
Data Recovery
Data Recovery
Data Recovery
Data Recovery
Data Recovery
Data Recovery
Operating Mode
Power Down
Power Down
Power Down
Power Down
Power Down
Power Down
Intel Multiplexed
Table
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping OFF
Pulse Shaping ON
Pulse Shaping ON
Pulse Shaping ON
Pulse Shaping ON
Transmit Mode
Power down
Power down
Octal E1 G.703 Transceiver — LXT380
28.
No Remote Loopback
Remote Loopback
Remote Loopback
Remote Loopback
Analog Loopback
Analog Loopback
No Remote Loop
No effect on op.
No effect on op.
No Loopback
No Loopback
No Loopback
No Loopback
No Loopback
Loopback
29