IDT82P2282 Integrated Device Technology, Inc., IDT82P2282 Datasheet - Page 19
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IDT82P2282
Manufacturer Part Number
IDT82P2282
Description
2 Channel T1/J1/E1 Transceiver
Manufacturer
Integrated Device Technology, Inc.
Datasheet
1.IDT82P2282.pdf
(383 pages)
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IDT82P2282
Pin Description
DS / RD / SCLK
RW / WR / SDI
D[0] / SDO
SPIEN
Name
TRST
MPM
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
A[0]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
Output / Input
Type
Input
Input
Input
Input
Input
Input
Pin No.
52
53
54
55
56
57
60
62
63
34
35
36
37
38
39
41
43
32
47
46
33
97
A[8:0]: Address Bus
In parallel mode, the signals on these pins select the register for the microprocessor to access.
In SPI mode, these pins should be connected to the ground.
A[8:0] are Schmitt-trigger inputs with pull-down resistor.
D[7:0]: Bi-directional Data Bus
In parallel mode, the signals on these pins are the data for Read / Write operation.
In SPI mode, the D[7:1] pins should be connected to the ground through a 10 K resistor.
D[7:0] are Schmitt-trigger inputs/outputs.
SDO: Serial Data Output
In SPI mode, the data is serially output on this pin.
MPM: Micro Controller Mode
In parallel mode, set this pin low for Motorola mode or high for Intel mode.
In SPI mode, set this pin to a fixed level (high or low). This pin is useless in SPI mode.
MPM is a Schmitt-trigger input.
RW: Read / Write Select
In parallel Motorola mode, this pin is active high for read operation and active low for write operation.
WR: Write Strobe (Active Low)
In parallel Intel mode, this pin is active low for write operation.
SDI: Serial Data Input
In SPI mode, the address/control and/or data are serially input on this pin.
RW / WR / SDI is a Schmitt-trigger input.
DS: Data Strobe (Active Low)
In parallel Motorola mode, this pin is active low.
RD: Read Strobe (Active Low)
In parallel Intel mode, this pin is active low for read operation.
SCLK: Serial Clock
In SPI mode, this pin inputs the timing for the SDO and SDI pins. The signal on the SDO pin is updated on the falling
edge of SCLK, while the signal on the SDI pin is sampled on the rising edge of SCLK.
DS / RD / SCLK is a Schmitt-trigger input.
SPIEN: Serial Microprocessor Interface Enable
When this pin is low, the microprocessor interface is in parallel mode.
When this pin is high, the microprocessor interface is in SPI mode.
SPIEN is a Schmitt-trigger input.
TRST: Test Reset (Active Low)
A low signal on this pin resets the JTAG test port. This pin is a Schmitt-triggered input with an internal pull-up resistor. It
must be connected to the RESET pin or ground when JTAG is not used.
JTAG (per IEEE 1149.1)
8
DUAL T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Description
October 7, 2003
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