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參數(shù)資料
| 型號： | HT49R50A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 8-Bit High Performance High speed Microcontroller(8位、高性能、高速微控制器) |
| 中文描述： | 8位高性能高速微控制器（8位，高性能，高速微控制器） |
| 文件頁數(shù)： | 29/51頁 |
| 文件大?。?/td> | 320K |
| 代理商： | HT49R50A |
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HT49R50A
29
November 29, 2000
Register Bit No.
Label
Read/Write
Reset
Function
RTCC
(09H)
0~2
RT0~RT2
R/W
0
8 to 1 multiplexer control inputs to select
the real clock prescaler output
3
LVDC*
R/W
0
LVD enable/disable (1/0)
4
QOSC
R/W
0
32768Hz OSC quick start-up oscillating
0/1: quickly/slowly start
5
LVDO
R/W
0
LVD detection output (1/0)
1: low voltage detected
6~7
Undefined, read as 0
Note:
* Once the LVD function is enabled the reference generator should be enabled; otherwise
the reference generator is controlled by LVR ROM code option. The relationship between LVR
and LVD options and LVDC are as shown.
LVD
LVR
LVDC
V
REF
Generator
LVR Comparator
LVD Comparator
EN
EN
ON
EN
EN
EN
EN
EN
OFF
EN
EN
DIS
EN
DIS
ON
EN
DIS
EN
EN
DIS
OFF
DIS
DIS
DIS
DIS
EN
X
EN
EN
DIS
DIS
DIS
X
DIS
DIS
DIS
Options
The following shows 21 kinds of options in the HT49R50A. All these options should be defined in or-
der to ensure proper functioning system.
No.
Options
1
OSC type selection. This option is to decide if an RC or crystal or 32768Hz crystal oscilla-
tor is chosen as system clock.
2
WDT Clock source selection. RTC and Time Base. There are three types of selection: sys-
tem clock/4 or RTC OSC or WDT OSC.
3
WDT enable/disable selection. WDT can be enabled or disabled by options.
4
CLR WDT times selection. This option defines how to clear the WDT by instruction. "One
time" means that the "CLR WDT" can clear the WDT. "Two times" means only if both of
the "CLR WDT1" and "CLR WDT2" have been executed, the WDT can be cleared.
5
Time Base time-out period selection. The Time Base time-out period ranges from
clock/2
12
to clock/2
15
"Clock" means the clock source selected by options.
6
Buzzer output frequency selection. There are eight types of frequency signals for buzzer
output: Clock/2
2
~Clock/2
9
. "Clock" means the clock source selected by options.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT49R50 | 8-BIT MICROCONTROLLER |
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| HT5D028 | 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT49R50A-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit LCD Type OTP MCU |
| HT49R50A-1(LQFP100) | 制造商:Holtek Semiconductor Inc 功能描述:IC, LCD TYPE 8-BIT MCU, QFP100 |
| HT49R50A-1_09 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type 8-Bit MCU |
| HT49R50A-1_12 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type 8-Bit MCU |
| HT49R70A-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit LCD Type OTP MCU |
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