參數(shù)資料
型號(hào): MC68HC705L16
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Microcontrollers
中文描述: 微控制器
文件頁數(shù): 101/146頁
文件大?。?/td> 772K
代理商: MC68HC705L16
LCD Data Register
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
Freescale Semiconductor
101
10.6 LCD Data Register
LCDRx — LCD Data Registers
Data in the LCDR
x
(LCDR1–LCDR20) controls the waveform of the two frontplane drivers. Bits 0–3
and bits 4–7 of this register decide the waveforms at the BP0–BP3 timings. If the LCD duty is not 1/4,
the register bit for the unused backplane has no meaning. The upper four bits of LCDR20 are not
implemented and unknown data may be read. (See
Table 10-3
.)
0 = Output deselect waveform at the corresponding backplane timing
1 = Output select waveform at the corresponding backplane timing
Address:
$0021–$0034
FP (2x–1)
FP (2x–2)
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BP3
BP2
BP1
BP0
BP3
BP2
BP1
BP0
Write:
Reset:
Unaffected by reset
Figure 10-6. LDC Data Registers
Table 10-3. Frontplane Data Register Bit Usage
Duty
Frontplane Data Register Bit Usage
Bit 5
Bit 4
Bit 7
Bit 6
Bit 3
Bit 2
Bit 1
Bit 0
1 / 1
BP0
BP0
1 / 2
BP1
BP0
BP1
BP0
1 / 3
BP2
BP1
BP0
BP2
BP1
BP0
1 / 4
BP3
BP2
BP1
BP0
BP3
BP2
BP1
BP0
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