參數(shù)資料
型號: HCD66727A03BP
廠商: Hitachi,Ltd.
英文描述: Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述: 低功耗點陣液晶顯示控制器/鍵掃描功能驅(qū)動程序
文件頁數(shù): 43/97頁
文件大?。?/td> 513K
代理商: HCD66727A03BP
HD66727
43
Table 23
Instruction List (cont)
Code
Execution
Cycle
*1
No.
Instruction
R/W RS
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
DA
DDRAM
address set
(upper bits)
0
0
1
1
0
IRE
KF1 KF0
ADD
(upper
bits)
Sets the initial higher
DDRAM address to the
address counter, and key
scan cycle.
5
DA
DDRAM
address set
(lower bits)
0
0
1
1
1
ADD (lower bits)
Sets the initial lower
DDRAM address to the
address counter.
5
WD
Write data to
RAM
0
1
Write data
Writes data to DDRAM,
CGRAM, SEGRAM,
annunciator/LED/gener
al port, or SEG/COM
shift direction.
5
RD
Read data
from RAM
1
1
Read data
Reads data from DDRAM,
CGRAM, or SEGRAM.
5
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:
BF = 1:
Internally operating
SF:
Key-scan state
TF = 1:
Key-scan internally operating
SD:
Key-scanned data
I/D = 1:
Address increment
I/D = 0:
Address decrement
OSC = 1:
System clock divided by four
B/W = 1:
Black-white inverting cursor on
C = 1:
8th raster-row cursor on
B = 1:
Blink cursor on
D = 1:
Character/segment display on
FW = 0:
5-dot font width
FW = 1:
6-dot font width
LC = 1:
Line containing AC given cursor attribute
AMP = 1:
Voltage followers and booster on
SLP = 1:
Sleep mode
STB = 1:
Standby mode
CT:
Contrast adjustment
NL1, NL0:
Number of display lines [00: 1 line (1/10 duty ratio), 01: 2 lines (1/18 duty ratio), 10: 3 lines
(1/26 duty ratio), 11: 4 lines (1/34 duty ratio)]
DL3–DL1:
Double-height lines (DL1 = 1: 1st line, DL2 = 1: 2nd line, DL3 = 1: 3rd line)
SN2–SN0:
Display-start line (000: 1st line, 001: 2nd line, 010: 3rd line, 011: 4th line, 100: 5th line)
SL2–SL0:
Display-start raster-row (000: 1st raster-row ... 111: 8th raster-row)
DA = 1:
Annunciator display on
AAN/ASEG: Annunciator address (0000–0010), LED/general port address (PORT2–PORT0, LED2–LED0)
(0011)
AAN/ASEG: SEG/COM shift change address (CMS, SGS) (0100), SEGRAM address (1000–1111)
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