参数资料
型号: MC68HC05T16B
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封装: PLASTIC, SDIP-56
文件页数: 102/128页
文件大小: 734K
代理商: MC68HC05T16B
MC68HC05T16
MOTOROLA
9-5
ON-SCREEN DISPLAY
9
9.3.3
Character Registers
There are a total of 128 character code registers, 32 characters per row for four rows.
Character Codes:
ROM/RAM - ROM/RAM mapping select
1 (set)
CH6-CH0 is mapped to the 16 RAM codes.
0 (clear) –
CH6-CH0 is mapped to the 128 ROM/EPROM codes.
CH6-CH0
0 to 127 = ROM/EPROM codes.
0 to 15 = RAM codes. Codes 16 and higher are invalid.
Figure 9-2 Reserved Character ROM Codes
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Character Code reg. 1
$200
ROM/RAM
CH6
CH5
CH4
CH3
CH2
CH1
CH0
uuuu uuuu
Character Attribute reg. 1
$201
BLNKG BGEN BGCOL2 BGCOL1 BGCOL0 CCOL2 CCOL1 CCOL0 uuuu uuuu
:
Character Code reg. 128
$2FE
ROM/RAM
CH6
CH5
CH4
CH3
CH2
CH1
CH0
uuuu uuuu
Character Attribute reg. 128
$2FF
BLNKG BGEN BGCOL2 BGCOL1 BGCOL0 CCOL2 CCOL1 CCOL0 uuuu uuuu
Code $00
Code $20 : Blank
Code $7F : Full-Filled
TPG
73
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