參數(shù)資料
型號: HD66725
廠商: Hitachi,Ltd.
英文描述: Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅動器)
中文描述: 圖形液晶顯示控制器/鍵掃描功能(帶鍵掃描功能的圖形液晶顯示控制器/驅動器驅動程序)
文件頁數(shù): 53/117頁
文件大?。?/td> 834K
代理商: HD66725
HD66724/HD66725
53
Table 31
Instruction List (cont)
Register
Name
Code
Execu-
tion
Cycle
*1
R/W RS
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
Horizontal scroll
control 1
0
0
0
1
0
1
1
SSE SE2 SE1 Specifies SE1-4 bit selection 0
SE4 SE3(SSE) and the display line
where horizontal scroll is
applied (SE1-4).
Horizontal scroll
control 2
0
0
0
1
1
0
0
SQ2 SQ1 SQ0 Specifies the amount of
scroll dot shift (SQ2-0) in
horizontal smooth scroll.
0
Key scan control
0
0
0
1
1
0
1
IRE
KF1 KF0 Sets the key scan interrupt
(IRE) and key scan cycle
(KF1/0).
0
Port control
0
0
0
1
1
1
0
PT2 PT1 PT0 Sets the general port output
(PT2-0).
0
RAM address set
(upper bits)
0
0
1
0
RM1 RM0
AD9-6
(upper bits)
Sets the RAM selection
(RM1/0) and initial higher
RAM address to the address
counter (AC).
0
RAM address set
(lower bits)
0
0
1
1
AD5-0
(lower bits)
Sets the initial higher RAM
address to the address
counter (AC).
0
Write data
to RAM
0
1
Write data
Writes data to DDRAM,
CGRAM, or SEGRAM.
0
Read data from
RAM
1
1
Read data
Reads data from DDRAM,
CGRAM, or SEGRAM.
0
Note:
1. Represented by the number of operating clock pulses; the execution time depends on the
supplied clock frequency or the internal oscillation frequency.
Bit definition:
CMC = 0: COM1/24 => COM1
SGS = 0: SEG1/72 => SEG1
AMP = 1: Operational amplifier and booster circuit on
SLP = 1:
Sleep mode
STB = 1: Standby mode
SW = 0:
CT4-0 access/SW = 1: BT1/0 and BS2-0 access
CT4-0:
Contrast adjustment
BT1/0:
Boost level selection (00: Single, 01: Double, 10: Triple)
BS2-0:
LCD drive bias selection
ROM = 0: CGROM bank 0 selection/ROM = 1: CGROM bank 1 selection
ID = 1:
Address increment
ID = 0:
Address decrement
GR = 1:
Graphics display mode
GR = 0:
Character display mode
B/W = 1:
Black-white inverting cursor on
相關PDF資料
PDF描述
HD66726 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅動器)
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