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7220 Datasheet(PDF) 158 Page - Renesas Technology Corp

Part # 7220
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  303 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7220 Datasheet(HTML) 158 Page - Renesas Technology Corp

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M37220M3-XXXSP/FP
4.5 Functional description
7220 Group User’s Manual
4-20
Fig. 4.5.10 CRT display circuit block diagram
CRT control register
(Address 00EA16)
Vertical position registers
(Addresses 00E116, 00E216)
Character size register
(Address 00E416)
Horizontal position register
(Address 00E016)
Border selection register
(Address 00E516)
Display oscillation
circuit
OSC1
OSC2
Display position control circuit
HSYNC VSYNC
Display control
circuit
RAM for display
9 bits ! 20 characters !
2 lines
Color registers
(Addresses 00E616
to 00E916)
CRT port control register
(Address 00EC16)
Data bus
ROM for display
12 bits ! 16 dots !
128 characters
Shift register
12 bits
Shift register
12 bits
Output circuit
R
G
B
OUT



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