HT1660
00H
04H
08H
0CH
0DH
0EH
1B0H
1B1H
1B2H
1B3H
1B4H
1B8H
1BCH
10H- - - - - - - - - 1ACH
11H- - - - - - - - - 1ADH
12H- - - - - - - - - 1AEH
13H- - - - - - - - - 1AFH
COM0
COM1
COM2
COM3
Bit0
Bit1
Bit2
Bit3
01H
Bit0
Bit1
Bit2
Bit3
05H
Bit0
Bit1
Bit2
Bit3
09H
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit2
Bit2
Bit2
Bit3
Bit3
Bit3
1B5H
1B9H
1BDH
COM4
COM5
COM6
COM7
Bit0
Bit1
Bit2
Bit3
02H
Bit0
Bit1
Bit2
Bit3
06H
Bit0
Bit1
Bit2
Bit3
0AH
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit2
Bit2
Bit2
Bit3
Bit3
Bit3
1B6H
1BAH
1BEH
COM8
COM9
COM10
COM11
Bit0
Bit1
Bit2
Bit3
03H
Bit0
Bit1
Bit2
Bit3
07H
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit2
Bit2
Bit2
Bit2
Bit3s
0BH
Bit3
Bit3
Bit3
0FH
1B7H
1BBH
1BFH
COM12
COM13
COM14
COM15
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit0
Bit1
Bit2
Bit3
Bit0
Bit1
Bit2
Bit3
Bit0
Bit1
Bit2
Bit3
Bit2
Bit2
Bit2
Bit3
Bit3
Bit3
SEG0
SEG1
SEG2
SEG3
SEG108 SEG109 SEG110 SEG111
112´16 Selection Mode RAM Mapping Table
Name
112´16 Mode
Command Code
X100-0001-1111-XXXX
Function
Change segment from 96 to 112 and common from 32 to 16
The default value after power ON reset is 96´32 mode, set ²Normal² command will change 112´16 mode to 96´32
mode.
Frame Frequency
HT1660 provides three kinds of frame frequency option by command code; 64Hz, 89Hz and 170Hz respectively. FRAME
64Hz provides 64Hz frame frequency. FRAME 89Hz provides 89Hz frame frequency. FRAME 170Hz provides 170Hz
frame frequency.
Name
FRAME 170Hz
FRAME 89Hz
FRAME 64Hz
Command Code
X100-0001-1000-XXXX
X100-0001-1101-XXXX
X100-0001-1110-XXXX
Function
Select 170Hz frame frequency
Select 89Hz frame frequency
Select 64Hz frame frequency
Frame Frequency Selection Command Code
Time Base and Watchdog Timer - WDT
The time base generator and WDT share the same counter which is divided by 256. The IRQ clock can be programmed as
1Hz, 2Hz, ...., 128Hz output. TIMER DIS/EN/CLR, WDT DIS/EN/CLR and IRQ EN/DIS are independent from each other.
Once the WDT time-out occurs, the IRQ pin will remain at a logic low level until the CLR WDT or the IRQ DIS command
is issued.
If an external clock is selected as the system frequency source, the SYS DIS command turns out invalid and the power
down mode fails to be carried out until the external clock source is removed.
Rev. 1.30
10
April 13, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
