MC68HC705T16 MOTOROLA [Motorola, Inc], MC68HC705T16 Datasheet - Page 75
MC68HC705T16
Manufacturer Part Number
MC68HC705T16
Description
High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705T16.pdf
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9.3.3
There are a total of 128 character code registers, 32 characters per row for four rows.
Character Codes:
ROM/RAM - ROM/RAM mapping select
CH6-CH0
MC68HC05T16
Character Attribute reg. 128
Character Attribute reg. 1
Character Code reg. 128
Character Code reg. 1
1 (set)
0 (clear) –
0 to 127 = ROM/EPROM codes.
0 to 15 = RAM codes. Codes 16 and higher are invalid.
Code $00
Character Registers
–
CH6-CH0 is mapped to the 16 RAM codes.
CH6-CH0 is mapped to the 128 ROM/EPROM codes.
Figure 9-2 Reserved Character ROM Codes
Address bit 7
$2FE
$200
$201
$2FF BLNKG BGEN
ROM/RAM
BLNKG BGEN
ROM/RAM
ON-SCREEN DISPLAY
Code $20 : Blank
bit 6
CH6
CH6
BGCOL2 BGCOL1 BGCOL0
BGCOL2 BGCOL1 BGCOL0
bit 5
CH5
CH5
bit 4
CH4
CH4
:
:
bit 3
CH3
CH3
CCOL2 CCOL1 CCOL0 uuuu uuuu
CCOL2 CCOL1 CCOL0 uuuu uuuu
bit 2
CH2
CH2
Code $7F : Full-Filled
bit 1
CH1
CH1
bit 0
CH0 uuuu uuuu
CH0 uuuu uuuu
MOTOROLA
on reset
State
TPG
9-5
9
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