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CXP85840A Datasheet

  • CXP85840A

  • CMOS 8-bit Single Chip Microcomputer

  • 22頁

  • SONY   SONY

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CXP85840A/85848A/85856A
CMOS 8-bit Single Chip Microcomputer
Description
The CXP85840A/85848A/85856A are the CMOS 8-bit
microcomputer integrating on a single chip an A/D
converter, serial interface, timer/counter, time-base
timer, closed caption decoder, data slicer, on-screen
display function, I
2
C bus interface, PWM output,
remote control reception circuit, HSYNC counter and
watchdog timer, besides the basic configurations of
8-bit CPU, ROM, RAM, I/O ports.
The CXP85840A/85848A/85856A also provide a
power-on reset function and sleep function that
enables to lower the power consumption.
64 pin SDIP (Plastic)
64 pin QFP (Plastic)
Structure
Features
Silicon gate CMOS IC
鈥?/div>
A wide instruction set (213 instructions) which covers
various types of data
鈥?16-bit operation/multiplication and division/Boolean bit operation instructions
鈥?/div>
Minimum instruction cycle 333ns at 12MHz operation
鈥?/div>
Incorporated ROM
40K bytes (CXP85840A)
48K bytes (CXP85848A)
56K bytes (CXP85856A)
鈥?/div>
Incorporated RAM
2176 bytes (Excludes closed caption decoder and VRAM for on-screen display)
鈥?/div>
Peripheral functions
鈥?A/D converter
8-bit 6-channel successive approximation method
(Conversion time of 26.7碌s at 12MHz)
鈥?Serial interface
8-bit clock sync type, 1 channel
鈥?Timer
8-bit timer
8-bit timer/counter
19-bit time-base timer
鈥?Closed caption decoder
Data slicer
Corresponds to FCC (EDS supported), 8
脳
13 dots, 192 character types
15 character colors, 4 lines
脳
34 characters
frame background 15 colors/ half blanking
italic, underline, vertical scrolling
鈥?On-screen display (OSD) function 12
脳
16 dots, 192 character types, 15 character colors
2 lines
脳
24 characters
frame background 8 colors/ half blanking
background on full screen 15 colors/ half blanking
edging and vertical scrolling for every line
jitter elimination circuit
sprite OSD, 12
脳
16 dots, 1 screen, 8 colors for every dot
2
C bus interface
鈥揑
鈥?PWM output
8 bits, 8 channels
鈥?Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
鈥?HSYNC counter
2 channels
鈥?Watchdog timer
鈥?/div>
Interruption
15 factors, 15 vectors, multi-interruption possible
鈥?/div>
Standby mode
Sleep
鈥?/div>
Package
64-pin plastic SDIP/QFP
鈥?/div>
Piggyback/evaluator
CXP85890A 64-pin ceramic PSDIP (Supports custom font)
Perchase of Sony's I
2
C components conveys a licence under the Philips I
2
C Patent Rights to use these components
in an I
2
C system, provided that the system conforms to the I
2
C Standard Specifications as defined by Philips.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
鈥?鈥?/div>
E97739A86

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