參數(shù)資料
型號: SDA20C440
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQFP80
封裝: PLASTIC, MQFP-80
文件頁數(shù): 29/55頁
文件大小: 990K
代理商: SDA20C440
SDA 20C440
Semiconductor Group
35
2.9.1
LCD-Special Function Registers
ADR0 ... 6:
Display RAM-Address
Valid Range:
8-line mode – 00H ... 2CH
16-line mode – 00H ... 4FH
LCDADR.7:
reserved, to be set to 0
Default after reset :
X000 0000
The address will be incremented automatically after each data transfer to the display RAM (during
character generation or single bit / word access).
Default after reset : X000 0000
After the word is transferred to the display RAM, the display RAM-Address Register will be
incremented once.
SB:
Single Bit, used to set or clear a single ‘cursor bit’ or ‘special segment bit’ in
the display RAM
LCDDAT.1 ... 7:
reserved, to be set to 0
Default after reset:
XXXX XXX0
After the bit is transferred to the display RAM, the display RAM-Address Register will be incremen-
ted once.
MSB
SFR-Address: BCH
LSB
LCDADR: Display RAM-Address Register
...
ADR6
ADR5
ADR4
ADR3
ADR2
ADR1
ADR0
MSB
SFR-Address: BAH
LSB
LCDWRD: Display RAM-Word Register
...
WRD6
WRD5
WRD4
WRD3
WRD2
WRD1
WRD0
MSB
SFR-Address: BBH
LSB
LCDBIT: Display RAM-Bit Register
...
SB
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