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參數(shù)資料
型號(hào)： HT82M9BAE
廠商： Holtek Semiconductor Inc.
英文描述： USB Mouse Encoder 8-Bit MCU with EEPROM
中文描述： USB鼠標(biāo)編碼器8位微控制器帶有EEPROM
文件頁(yè)數(shù)： 8/47頁(yè)
文件大小： 336K
代理商： HT82M9BAE
HT82M9BEE/HT82M9BAE
Rev. 1.20
8
August 13, 2007
data as defined by TBLP and the current program
counter bits.
Stack Register
STACK
This is a special part of the memory which is used to
save the contents of the program counter only. The
stack is organized into 4 levels and is neither part of the
data nor part of the program space, and is neither read-
able nor writeable. The activated level is indexed by the
stack pointer (SP) and is neither readable nor writeable.
At a subroutine call or interrupt acknowledge signal, the
contents of the program counter are pushed onto the
stack. At the end of a subroutine or an interrupt routine,
signaled by a return instruction (RET or RETI), the pro-
gram counter is restored to its previous value from the
stack.Afterachipreset,theSPwillpointtothetopofthe
stack.
If the stack is full and a non-masked interrupt takes
place, the interrupt request flag will be recorded but the
acknowledge signal will be inhibited. When the stack
pointer is decremented (by RET or RETI), the interrupt
will be serviced. This feature prevents stack overflow al-
lowing the programmer to use the structure more easily.
In a similar case, if the stack is full and a CALL is sub-
sequently executed, stack overflow occurs and the first
entry will be lost (only the most recent 4 return ad-
dresses are stored).
Data Memory
RAM for Bank 0
The data memory is designed with 224 8 bits. The data
memory is divided into two functional groups: special
function registers and general purpose data memory
(224 8). Most are read/write, but some are read only.
The unused spaces before the 20H is reserved for fu-
ture expanded usage and reading these locations will
get
dressed from 20H to FFH, is used for data and control
information under instruction commands.
00H . The general purpose data memory, ad-
All of the data memory areas can handle arithmetic,
logic, increment, decrement and rotate operations di-
rectly. Except for some dedicated bits, each bit in the
data memory can be set and reset by SET [m].i and
CLR [m].i . They are also indirectly accessible through
memory pointer registers (MP0 or MP1).
Data Memory
RAM for Bank 1
The special function registers used in the USB interface
are located in RAM Bank1. In order to access Bank1
register, only the Indirect addressing pointer MP1 can
be used and the Bank register BP should be set to 1.
The RAM bank 1 mapping is as shown.
Address 00~1FH in RAM Bank0 and Bank1 are located
in the same Registers
Indirect Addressing Register
Locations 00H and 02H are indirect addressing regis-
ters that are not physically implemented. Any read/write
operation on [00H] ([02H]) will access the data memory
pointed to by MP0 (MP1). Reading location 00H (02H)
indirectly will return the result 00H. Writing indirectly re-
sults in no operation.
The indirect addressing pointer (MP0) always points to
Bank0 RAM addresses no matter the value of Bank
Register (BP).
The indirect addressing pointer (MP1) can access
Bank0 or Bank1 RAM data according to the value of BP
which is set to 0 or 1 respectively.
The memory pointer registers (MP0 and MP1) are 8-bit
registers.
1 1 =
1
=
1
=
1 + =
1 . =
1 3 =
1 4 =
1 5 =
1 7 =
1 6 =
1
=
1 & =
1
=
1
=
1
=
1 8 =
1 =
=
=
+ =
. =
3 =
4 =
5 =
7 =
%
0 -
-
9
. - &
:
=
& =
=
=
=
8 =
8 8 =
1 =
!
-
! !
-
- 1
1
!
-
! !
-
-
&
"
& "
& " =
/
1
1
=
"
&
&
& =
&
< - 1
6 =
Bank 0 RAM Mapping
相關(guān)PDF資料
PDF描述
HT82M9BEE USB Mouse Encoder 8-Bit MCU with EEPROM
HT82P604B DC-DC Converter
HT82V14 14-Bit CCD/CIS Analog Signal Processor(14位CCD/CIS模擬信號(hào)處理器)
HT82V16 16-Bit CCD/CIS Analog Signal Processor(16位CCD/CIS模擬信號(hào)處理器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT82M9BEE 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Mouse Encoder 8-Bit MCU with EEPROM
HT82P4352-16SOP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
HT82P604B 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:DC-DC Converter
HT82T20-20SOP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC
HT82V14 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:14-Bit CCD/CIS Analog Signal Processor
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