- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385407 > HT9580 (Holtek Semiconductor Inc.) Character Pager Controller PDF資料下載
參數(shù)資料
| 型號： | HT9580 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Character Pager Controller |
| 中文描述： | 字符傳呼機控制器 |
| 文件頁數(shù)： | 10/63頁 |
| 文件大?。?/td> | 444K |
| 代理商： | HT9580 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當(dāng)前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁
Configuration register
Address
Register
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
State on
POR
0000H
Config.
HALT
CLK_SEL
OSC_MOD
LPM
RTC
BZ_CLK
MDUT
MGEN
0001 0000
HT9580
10
April 28, 2000
Preliminary
Oscillator configuration
There are two clock source input pins on the
chip, the main clock and the pager decoder in-
put clock. The main clock is generated by an RC
network. The system clock may be the OSC in-
put or the X1-clock depending on bit
CLK_SEL . The pager decoder input clock co-
mes from two external pins, X1 and X2. The fre-
quency of the sub-clock will be double that of
the X1, X2 input clock. The OSC1 main clock
will be generated from an RC network that
needs an external resistor (see Application Cir-
cuit). The system clock may be X1-clock, DF or
RC clock. If no higher frequency (RC) is needed,
the external resistor between OSC1 and OSC2
can be removed. The system clock can be
switched by bit CLK_SEL . If CLK_SEL =0
(POR State), the system clock will be X1-clock.
In other cases, with CLK_SEL =1, the OSC in-
put clock will be the system clock. The clock
switching function will assist software pro-
grammers to change the C system clock with-
in an adequate time if necessary. The
OSC_MOD bit selects the OSC input clock to
be either RC or DF. If OSC_MOD is set to
low thentheRCconfigurationisselected,oth-
erwise the DF application is selected. The pro-
grammer should note that the condition of
CLK_SEL , HALT and OSC_MOD assures
that the system clock is working properly. It is
recommended that the OSC clock source is ei-
ther DF or RC. If DF and RC are necessary, it is
required to switch the system clock to X1-clock
before switching between DF and RC. Then
switch the system clock back to the OSC input
by using bit CLK_SEL if the switching action of
DF and RC is complete. Before enter HALT
mode, the system clock must select X1-clock.
The HT9580 will generate two RTC frequen-
cies, 1Hz and 2Hz respectively, determined by
bit RTC. If the bit is logic low, the 1Hz RTC fre-
quency will be selected, otherwise the 2Hz RTC
frequency will be selected. The RTC counter is
enabled/disabled by bit RTCEN and can be
maskedornotmaskedasdeterminedbythe bit
RTCMSK of the interrupt control register
9
' B
9 = 9
9
C
C
-
A =
C B
C 4 3
D 3
3 #
B # $4 4
3
'
$
' B
9
4 3
3 # B
' B
3
- E F $ 9 3
) - E F $ 9 3
$ 3
RTC block diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT95A30P | 8-Bit LCD Type Phone Controller MCU |
| HT95L300 | 8-Bit LCD Type Phone Controller MCU |
| HT95A20P | 8-Bit LCD Type Phone Controller MCU |
| HT95L300-100QEP-A | LCD Type Phone 8-Bit MCU |
| HT95A400 | Time-Delay Relay; Mounting Type:Plug In; Relay Mounting:Plug-In |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT95A100 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95A100/10P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Type Phone 8-Bit MCU |
| HT95A10P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95A200 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Type Phone 8-Bit MCU |
| HT95A200/20P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Type Phone 8-Bit MCU |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。