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參數(shù)資料
| 型號： | HT95C20P |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 8-Bit CID Type Phone Controller MCU |
| 中文描述： | 8位偵緝型電話MCU控制器 |
| 文件頁數(shù)： | 9/50頁 |
| 文件大?。?/td> | 324K |
| 代理商： | HT95C20P |
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HT95C200/20P/300/30P
Rev. 0.10
9
October 1, 2002
Preliminary
tion will be within 256 locations. When a control transfer
takes place, an additional dummy cycle is required.
Program memory
ROM
The program memory is used to store the program in-
structions which are to be executed. It also contains
data, table, and interrupt entries, and is organized into
8192 16bits,addressedbytheprogramcounterandta-
blepointer.Certainlocationsintheprogrammemoryare
reserved for special usage:
Location 0000H
This area is reserved for the initialization program. Af-
ter chip power-on reset or external reset or WDT
time-out reset, the program always begins execution
at location 0000H.
Location 0004H
This area is reserved for the external interrupt service
program. If the INT/TMR1 input pin is activated, the
external interrupt is enabled and the stack is not full,
the program begins execution at location 0004H.
Location 0008H
ThisareaisreservedfortheTimer/EventCounter0in-
terrupt service program. If a timer interrupt results
from a Timer/Event Counter 0 overflow, the
Timer/Event Counter 0 interrupt is enabled and the
stack is not full, the program begins execution at loca-
tion 0008H.
Location 000CH
This location is reserved for the Timer/Event Counter
1 interrupt service program. If a timer interrupt results
from a Timer/Event Counter 1 overflow, the
Timer/Event Counter 1 interrupt is enabled and the
stack is not full, the program begins execution at loca-
tion 000CH.
Location 0010H
This location is reserved for the peripherals interrupt
service program. The peripherals include a DTMF
generator and FSK decoder. When the DTMF genera-
tor is operated in burst mode, it will generate an inter-
rupt after 1 burst cycle is finished. When the FSK
decoderdetectsaringerorlinereversalorFSKcarrier
signal or FSK packet data, the FSK interrupt is also
generated. If these interrupts occurred, the peripheral
interrupt is enabled and the stack is not full, the pro-
gram begins execution at location 0010H. The pro-
grammer could distinguish from these interrupts from
the DTMFC and FSKS register.
Location 0014H
This location is reserved for real time clock (RTC) in-
terrupt service program. When RTC generator is en-
abled and time-out occurs, the RTC interrupt is
enabled and the stack is not full, the program begins
execution at location 0014H.
Location 0018H
This location is reserved for the HKS pin edge transi-
tion or HDI pin falling edge transition or HFI pin rising
edge transition. If this condition occurs, the dialer I/O
interrupt is enabled and the stack is not full, the pro-
gram begins execution at location 18H.
Table location
Any location in the ROM space can be used as look-up
tables. The instructions
TABRDC [m]
(the current
page, one page=256 words) and TABRDL [m] (the last
page)transferthecontentsofthelower-orderbytetothe
specified data memory, and the higher-order byte to
TBLH (08H). Only the destination of the lower-order
byte in the table is well-defined, and the higher-order
byte of the table word is transferred to TBLH. The table
Instruction(s)
Table Location
*12
*11
*10
*9
*8
*7
*6
*5
*4
*3
*2
*1
*0
TABRDC [m]
P12
P11
P10
P9
P8
@7
@6
@5
@4
@3
@2
@1
@0
TABRDL [m]
1
1
1
1
1
@7
@6
@5
@4
@3
@2
@1
@0
Note: *12~*0: Table location bits
P12~P8: Current program counter bits
@7~@0: Table pointer bits
' ' ' 5
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Program memory
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT95C300 | 8-Bit CID Type Phone Controller MCU |
| HT95C30P | 8-Bit CID Type Phone Controller MCU |
| HT95C200 | 8-Bit CID Type Phone Controller MCU |
| HT95CXXX | CID Type Phone 8-Bit MCU |
| HT95L400-128QFP-A | LCD Type Phone 8-Bit MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT95C300 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95C30P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95C400 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95C40P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95CXXX | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
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