82V2042EPF8 IDT, Integrated Device Technology Inc, 82V2042EPF8 Datasheet - Page 39

• Manufacturer Part Number: 82V2042EPF8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2042EPF8

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

3.12 MICROCONTROLLER INTERFACES
isters in the device. The chip supports serial microcontroller interface and
two kinds of parallel microcontroller interface: Motorola non-Multiplexed
mode and Intel non-Multiplexed mode. Different microcontroller interfaces
can be selected by setting MODE[1:0] pins to different values. Refer to
MODE1
INTERFACE TIMING CHARACTERISTICS
3.12.1 PARALLEL MICROCONTROLLER INTERFACE
MODE[1:0] pins are set to ‘10’, Parallel-non-Multiplexed-Motorola interface
FUNCTIONAL DESCRIPTION
IDT82V2042E
The microcontroller interface provides access to read and write the reg-
The interface is compatible with Motorola or Intel microcontroller. When
and
MODE0
SCLK
in pin description and
SDO
CS
SDI
A0
Figure-20 Serial Microcontroller Interface Function Timing
A1
address/command byte
remains high impedance
for details
A2
8 MICROCONTROLLER
A3
A4
A5
R/W
DUAL CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
-
39
is selected. When MODE[1:0] pins are set to ‘11’, Parallel-non-Multiplexed-
Intel Interface is selected. Refer to
TIMING CHARACTERISTICS
3.12.2 SERIAL MICROCONTROLLER INTERFACE
mode, the registers are programmed through a 16-bit word which contains
an 8-bit address/command byte (6 address bits A0~A5 and bit R/W) and
an 8-bit data byte (D0~D7). When bit R/W is ‘1’, data is read out from pin
SDO. When bit R/W is ‘0’, data is written into SDI pin. Refer to Figure-20.
D0
D0
When MODE[1:0] pins are set to ‘01’, Serial Interface is selected. In this
D1
D1
output data byte (R/W=1)
input data byte (R/W=0)
D2
D2
D3
D3
D4
D4
D5
D5
for details.
D6
D6
8 MICROCONTROLLER INTERFACE
D7
D7
December 12, 2005