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參數資料
| 型號： | HT48CA0 |
| 廠商： | Holtek Semiconductor Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數： | 11/32頁 |
| 文件大小： | 238K |
| 代理商： | HT48CA0 |
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HT48RA0-2/HT48CA0-2
Rev. 1.50
11
July 23, 2004
Code Option
The following table shows eight kinds of code option in the HT48RA0-2/HT48CA0-2. All the code options must be de-
fined to ensure proper system functioning.
No.
Code Option
1
WDT time-out period selection
Time-out period=
2
Clock Source
n
, where n=8~11.
2
WDT enable/disable selection. This option is to decide whether the WDT timer is enabled or disabled.
3
CLR WDT times selection. This option defines how to clear the WDT by instruction. One time means that the
CLR WDT instruction can clear the WDT. Two times means only if both of the CLR WDT1 and CLR WDT2 in-
structions have been executed, the WDT can be cleared.
4
Wake-up selection. This option defines the wake-up activity function. External input pins (PB only) all have the
capability to wake-up the chip from a HALT.
5
Carrier/level output selection. This option defines the activity of PC0 to be carrier output or level output.
6
Carry frequency selection.
Carry frequency=
Clock Source
(2 or 3) 2
n
, where n=0~3.
7
Carrier duty selection. There are two types of selection: 1/2 duty or 1/3 duty.
If carrier frequency=Clock Source/(2, 4, 8 or 16), the duty cycle will be 1/2 duty.
If carrier frequency=Clock Source/3, the duty cycle will be 1/3 duty.
If carrier frequency=Clock Source/(6, 12 or 24), the duty cycle can be 1/2 duty or 1/3 duty.
8
System oscillator selection. RC or crystal oscillator.
9
LVR function: enable or disable
2 F 3
$ F 4
$
#
1
G
G
6
1 #
#
#
1
Low Voltage Reset
Note:
*1 To make sure that the system oscillator has stabilized, the SST provides an extra delay of 1024 system
clock pulses before entering the normal operation.
*2 Sincelowvoltagehastobemaintainedinitsoriginalstateandexceed1ms,therefore1msdelayenters
the reset mode.
相關PDF資料 |
PDF描述 |
|---|---|
| HT48CA1 | Remote Type 8-Bit MCU |
| HT48RA1 | Remote Type 8-Bit MCU |
| HT48CA3 | 8-Bit Remote Type MCU |
| HT48E06 | 8-Bit I/O Type MCU (With EEPROM) |
| HT48E50 | I/O Type 8-Bit MTP MCU With EEPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT48CA0(20SOIC-A) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| HT48CA0(24SOIC-A) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| HT48CA0-1 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Remote Type 8-Bit MCU |
| HT48CA0-2 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Remote Type 8-Bit MCU |
| HT48CA0-20DIP-A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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