Rev. 2.10
216
���� 02� 201�
Rev. 2.10
217
���� 02� 201�
HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
Configuration Options
Configuration options refer to certain options within the MCU that are programmed into the device
during the programming process. During the development process, these options are selected using
the HT-IDE software development tools. As these options are programmed into the device using
the hardware programming tools, once they are selected they cannot be changed later using the
application program. All options must be defined for proper system function, the details of which are
shown in the table.
No.
Options
Oscillator Options
1
High speed s�stem osci��ator se�ection – f
H
:
1. HXT
2. ERC
3. HIRC
2
Low speed s�stem osci��ator se�ection – f
L
:
1. LXT
2. LIRC
3
WDT c�ock se�ection – f
S
:
1. f
SUB
2. f
SYS
/�
�
HIRC freq�enc� se�ection:
1. �MHz
2. 8MHz
3. 12MHz
Note: The f
SUB
and the f
TBC
c�ock so�rce are LXT or LIRC se�ection b� the f
L
configuration option.
Reset Pin Options
5
PB0/RES pin options:
1. RES pin
2. I/O pin
Watchdog Options
6
Watchdog Timer f�nction:
1. Enab�e
2. Disab�e
7
CLR WDT instr�ctions se�ection:
1. 1 instr�ction
2. 2 instr�ctions
LVR Options
8
LVR f�nction:
1. Enab�e
2. Disab�e
9
LVR vo�tage se�ection:
1. 2.10V
2. 2.55V
3. 3.15V
�. �.20V
SIM Options
10
SIM f�nction:
1. Enab�e
2. Disab�e
11
SPI – WCOL bit:
1. Enab�e
2. Disab�e
12
SPI - CSEN bit:
1. Enab�e
2. Disab�e