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參數(shù)資料
| 型號(hào)： | HT82A832R |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Basic USB Phone OTP MCU |
| 中文描述： | 檢察官辦公室的基本USB電話單片機(jī) |
| 文件頁數(shù)： | 9/51頁 |
| 文件大小： | 345K |
| 代理商： | HT82A832R |
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HT82A832R
Rev. 1.00
9
July 18, 2006
Indirect Addressing Register
Locations 00H and 02H are indirect addressing
registers 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 results in no operation.
The function of data movement between two indirect
addressing registers is not supported. The memory
pointerregisters(MP0andMP1)are8-bitregistersused
to access the RAM by combining corresponding indirect
addressing registers.
Bank Pointer
The bank pointer is used to assign the accessed RAM
bank.WhentheuserswanttoaccesstheRAMbank0,a
0 should be loaded onto BP. RAM locations before
40H in any bank are overlapped.
Accumulator
The accumulator is closely related to ALU operations. It
is also mapped to location 05H of the data memory and
can carry out immediate data operations. The data
movement between two data memory locations must
pass through the accumulator.
Arithmetic and Logic Unit
ALU
This circuit performs 8-bit arithmetic and logic
operations. The ALU provides the following functions:
Arithmetic operations (ADD, ADC, SUB, SBC, DAA)
Logic operations (AND, OR, XOR, CPL)
Rotation (RL, RR, RLC, RRC)
Increment and Decrement (INC, DEC)
Branch decision (SZ, SNZ, SIZ, SDZ ....)
The ALU not only saves the results of a data operation
but also changes the status register.
Status Register
STATUS
This 8-bit register (0AH) contains the zero flag (Z), carry
flag (C), auxiliary carry flag (AC), overflow flag (OV),
power down flag (PDF), and watchdog time-out flag
(TO). It also records the status information and controls
the operation sequence.
With the exception of the TO and PDF flags, bits in the
status register can be altered by instructions like most
other registers. Any data written into the status register
will not change the TO or PDF flag. In addition,
operations related to the status register may give
different results from those intended.
The TO flag can be affected only by a system power-up,
a WDT time-out or executing the CLR WDT or HALT
instruction. The Z, OV, AC and C flags generally reflect
the status of the latest operations.
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RAM Mapping
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT82A850R | Audio MCU |
| HT82A851R | USB Audio MCU |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT82A832R_07 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A834R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A836R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A850R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Audio MCU |
| HT82A851R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
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