82V2048DA IDT, Integrated Device Technology Inc, 82V2048DA Datasheet - Page 9

• Manufacturer Part Number: 82V2048DA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2048DA

• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

Table-1 Pin Description (Continued)
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT
SDO/RDY/ACK
LP7/D7/AD7
LP6/D6/AD6
LP5/D5/AD5
LP4/D4/AD4
LP3/D3/AD3
LP2/D2/AD2
LP1/D1/AD1
LP0/D0/AD0
Name
INT
High-Z
Open
Drain
Type
I/O
O
O
TQFP144
83
82
28
27
26
25
24
23
22
21
Pin No.
PBGA160
K14
K13
K1
H2
H3
G2
J1
J2
J3
J4
SDO: Serial Data Output
In serial host mode, the data is output on this pin. In serial write operation, SDO is in high impedance for
the first 8 SCLK clock cycles and driven low for the remaining 8 SCLK clock cycles. In serial read opera-
tion, SDO is in high-Z only when SDI is in address/command byte. Data on pin SDO is clocked out of the
device on the falling edges of SCLK if pin CLKE is high, or on the rising edges of SCLK if pin CLKE is low.
RDY: Ready Output
In parallel Intel host mode, the high level of this pin reports to the host that bus cycle can be completed,
while low reports the host must insert wait states.
ACK: Acknowledge Output (Active Low)
In parallel Motorola host mode, the low level of this pin indicates that valid information on the data bus is
ready for a read operation or acknowledges the acceptance of the written data during a write operation.
INT: Interrupt (Active Low)
This is an open drain, active low interrupt output. Four sources may cause the interrupt . Refer to
Interrupt Handling
LPn: Loopback Select 7~0
In hardware control mode, pin LPn configures the corresponding channel in different loopback mode, as
follows:
Refer to
Dn: Data Bus 7~0
In non-multiplexed host mode, these pins are the bi-directional data bus.
ADn: Address/Data Bus 7~0
In multiplexed host mode, these pins are the multiplexed bi-directional address/data bus.
In serial host mode, these pins should be grounded.
2.17 Loopback Mode
VDDIO/2
High
LPn
Low
for details.
9
for details.
Loopback Configuration
Description
Remote Loopback
Analog Loopback
No loopback
INDUSTRIAL TEMPERATURE RANGES
2.19