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UPD17062 데이터시트(PDF) 254 Page - Renesas Technology Corp

부품명 UPD17062
상세설명  MOS INTEGRATED CIRCUIT
PDF  298 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
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µPD17062
20.4.4
Control Data Select Data
The term control data refers to the data that specifies the character size, display position, and color of a
character pattern on the screen. This data is held in CROM (at
×××FH).
The control data select data is held in VRAM and selects control data in CROM.
The 6 bits of the data field correspond to b9 to b4 of the CROM address. Similarly to the pattern select data,
the control data select data also requires that a CROM bank be specified. A CROM bank is specified using
CROMBNK (b0 at 30H) in the register file.
Fig. 20-5
Relationship between the Control Data and CROM Address
b7
b6
b5
b4
b3
b2
b1
b0
10
b11
1
b0
11
1
1
Bank data
BANK0: 0
BANK1: 1
Data in VRAM
CROM address



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