SCD128410QCE Intel, SCD128410QCE Datasheet - Page 32
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SCD128410QCE
Manufacturer Part Number
SCD128410QCE
Description
Manufacturer
Intel
Datasheet
1.SCD128410QCE.pdf
(176 pages)
Specifications of SCD128410QCE
Pin Count
100
Lead Free Status / RoHS Status
Not Compliant
Available stocks
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Part Number
Manufacturer
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Price
Part Number:
SCD128410QCE
Manufacturer:
INTEL
Quantity:
20 000
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CD1284 — IEEE 1284-Compatible Parallel Interface Controller
32
Figure 3. CD1284 Functional Block Diagram
Figure 4. Internal Address Generation
ADDRESS
INTERFACE
AND DMA
CPU
LOGIC
BUS
The serial data channels are made of ‘bit engines’ that off-load the task of receiving and
transmitting each bit from the MPU. When receiving data and after processing a complete bit, the
bit engines interrupt the MPU so that it can perform the next required task. For example, the MPU
takes the bit and adds it to a character being assembled. When transmitting, it sends the bit engine
the next bit of the character being transmitted. The MPU is not concerned with basic bit timing; this
task is handled by the bit engines, leaving the MPU free to perform higher-level processing, such as
detecting special characters.
CAR
INTERRUPT
LOGIC
ROM
MPU
GENERATION
ADDRESS
PORT FIFO
PARALLEL
RAM
RAM REGISTER
CONTROL STATE
ARRAY
MACHINE
CHANNEL 2 REGISTERS
CHANNEL 3 REGISTERS
PARALLEL PORT
(CHANNEL 0)
PORT LOGIC
REGISTERS
LOGIC AND BIT
LOGIC AND BIT
PARALLEL
CHANNEL 2
CHANNEL 3
TIMING
TIMING
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