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M35052 Folha de dados(PDF) 23 Page - Renesas Technology Corp

Nome de Peças M35052
Descrição Electrónicos  SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PDF  37 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M35052 Folha de dados(HTML) 23 Page - Renesas Technology Corp

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MITSUBISHI MICROCOMPUTERS
M35052-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
22
Encode functions (effective for NTSC only)
(1) Setting encode data
Setting data code (000 – 111) in EC0 through EC2 (bits DA8 through
DAA) of the display RAM (addresses 0 through EF16) encodes. A
sample setting and data code are shown below.
Fig. 12 An example of data code setting
L
EC2
0
0
0
0
1
1
1
1
EC1
0
0
1
1
0
0
1
1
EC0
0
1
0
1
0
1
0
1
L
LH
HL
HH
LH LH
LH L
Data
Can not be used
The oscillation frequency when
encoding: 3 MHzV
1 clock cycle: 0.333
µs
1 character (12 dots): 3.996
µs
2 bits/1 character: 3.996
µs
1 bit: 1.998
µs
18 dots
12 dots
An example of setting
V····· 192 ! fH (horizontal synchronous
frequency)
for fH = 15.625 kHz
Note: Refer to the next page about address setting.
No encoding
A suite of data code (000 – 111) for encoding to be set in EC2 through EC0 are assigned as given below.
fixed
2 bit / a character
Set by every 2 bits (one character) with EC2 to EC0.
16 bit data
1H
5 characters
8 characters
EC2~EC0=
(address) (Note)
(1)
(2)
(3)
001
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(0)
100 100 101
(4)
(Set one code of 000 to 011)
100
LSB
MSB



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