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參數(shù)資料
| 型號： | HT95L300-100QEP-A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | LCD Type Phone 8-Bit MCU |
| 中文描述： | 液晶式電話8位微控制器 |
| 文件頁數(shù)： | 13/42頁 |
| 文件大?。?/td> | 768K |
| 代理商： | HT95L300-100QEP-A |
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HT95L100/10P
Rev. 0.10
13
October 1, 2002
Preliminary
CLRWDTinstructionwillcleartheWDT.Inthecasethat
CLR WDT1 and CLR WDT2 are chosen (i.e. Two
clear instructions), these two instructions must be exe-
cuted to clear the WDT; otherwise, the WDT may reset
the chip as a result of time-out.
Controller operation mode
Holtek s telephone controllers support two system clock
and four operation modes. The system clock could be
32768Hz or 3.58MHz and operation mode could be Nor-
mal, Green, Sleep or Idle mode. These are all selected
by the software.
The following conditions will force the operation mode to
change to Green mode:
Any reset condition from any operation mode
Any interrupt from Sleep mode or Idle mode
Port A wake-up from Sleep mode or Idle mode
How to change the Operation Mode
Normal mode to Green mode:
ClearMODE1to0,thenoperationmodeischangedto
Green mode but the UPEN status is not changed.
However, UPEN can be cleared by software.
Normal mode or Green mode to Sleep mode:
Step 1: Clear MODE0 to 0
Step 2: Execute HALT instruction
After Step 2, operation mode is changed to Sleep
mode, the UPEN and MODE1 are cleared to 0 by
hardware.
Normal mode or Green mode to Idle mode:
Step 1: Set MODE0 to 1
Step 2: Execute HALT instruction
After Step 2, operation mode is changed to Idle mode,
theUPENandMODE1areclearedto0byhardware.
Green mode to Normal mode:
Step 1: Set UPEN to 1
Step 2: Software delay 20ms at least
Step 3: Set MODE1 to 1
After Step 3, operation mode is changed to Normal
mode.
Sleep mode or Idle mode to Green mode:
Method 1: Any reset condition occurred
Method 2: Any interrupt is active
Method 3: Port A wake-up
Note: The Timer 0, Timer 1, RTC and dialer I/O inter-
rupt function will not work at the Idle mode be-
cause the 32768Hz crystal is stopped.
Theresetconditionsincludepoweronreset,externalre-
set, WDT time-out reset. By examining the processor
status flag, PD and TO, the program can distinguish be-
tween different reset conditions . Refer to the Reset
function for detailed description.
The port A wake-up and interrupt can be considered as
a continuation of normal execution. Each bit in port A
can be independently selected to wake-up the device by
mask option. Awakening from Port A stimulus, the pro-
gram will resume execution of the next instruction.
Any valid interrupts from Sleep mode or Idle mode may
cause two sequences. One is if the related interrupt is
disabled or the interrupt is enabled but the stack is full,
the program will resume execution at the next instruc-
tion. The other is if the interrupt is enabled and the stack
is not full, the regular interrupt response takes place. It is
necessary to mention that if an interrupt request flag is
set to 1 before entering the Sleep mode or Idle mode,
the wake-up function of the related interrupt will be dis-
abled.
Register
Label
Bits
R/W
Function
MODE
(26H)
4~0
RO
Unused bit, read as 0
UPEN
5
RW
1: Enable frequency up conversion function to generate 3.58MHz
0: Disable frequency up conversion function to generate 3.58MHz
MODE0
6
RW
1: Disable 32768Hz oscillator while the HALT instruction is executed
(Idle mode)
0: Enable 32768Hz oscillator while the HALT instruction is executed
(Sleep mode)
MODE1
7
RW
1: Select 3.58MHz as CPU system clock
0: Select 32768Hz as CPU system clock
Operation mode description
HALT
Instruction
MODE1
MODE0
UPEN
Operation
Mode
32768Hz
3.58MHz
System
Clock
Not execute
1
X
1
Normal
ON
ON
3.58MHz
Not execute
0
X
0
Green
ON
OFF
32768Hz
Be executed
0
0
0
Sleep
ON
OFF
HALT
Be executed
0
1
0
Idle
OFF
OFF
HALT
Note: X means don t care
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT95A400 | Time-Delay Relay; Mounting Type:Plug In; Relay Mounting:Plug-In |
| HT95A100 | I/O Type Phone 8-Bit MCU |
| HT95A200 | I/O Type Phone 8-Bit MCU |
| HT95A300 | I/O Type Phone 8-Bit MCU |
| HT95AXXX | I/O Type Phone 8-Bit MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT95L30P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95L30P-100QEP-A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95L400 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95L400-128QFP-A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95L40P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
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