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參數資料
| 型號： | HT36A1 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Music Synthesizer 8-Bit MCU |
| 中文描述： | 音樂合成器8位微控制器 |
| 文件頁數： | 8/39頁 |
| 文件大小： | 286K |
| 代理商： | HT36A1 |
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HT36A1
Rev. 1.00
8
August 15, 2005
erwise, the sample will not be read out correctly be-
cause it has a wrong starting code.
Stack Register
Stack
This is a special part of the memory which is used to
save the contents of the program counter (PC) only. The
stack is organized into 8 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 acknowledgment, 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
acknowledgment 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 CALLis subse-
quently executed, a stack overflow occurs and the first
entry will be lost (only the most recent eight return ad-
dress are stored).
Data Memory
RAM
Thedatamemoryisdesignedwith256
memory is divided into three functional groups: special
function registers, wavetable function register, and gen-
8bits.Thedata
eral purpose data memory (208 8). Most of them are
read/write, but some are read only.
The special function registers include the Indirect Ad-
dressing register 0 (00H), the Memory Pointer register 0
(MP0;01H), the Indirect Addressing register 1 (02H), the
Memory Pointer register 1 (MP1;03H), the Accumulator
(ACC;05H), the Program Counter Lower-byte register
(PCL;06H), the Table Pointer (TBLP;07H), the Table
Higher-order byte register (TBLH;08H), the Watchdog
Timer option Setting register (WDTS;09H), the Status
register (STATUS;0AH), the Interrupt Control register
(INTC;0BH), the Timer Counter 0 Lower-order byte reg-
ister (TMR0L;0DH), the Timer Counter 0 Control regis-
ter (TMR0C;0EH), the Timer Counter 1 Lower-order
byte register (TMR1L;10H), the Timer Counter 1 Control
register (TMR1C;11H), the I/O registers (PA;12H,
PB;14H, PC;16H) and the I/O control registers
(PAC;13H, PBC;15H, PCC;17H). The program ROM
bank select (PF;1CH). The DAC High byte (DAH;1DH).
The DAC low byte (DAL;1EH). The DAC control
(DAC;1FH). The wavetable function registers is defined
between 20H~2AH. The remaining space before the
30H is reserved for future expanded usage and reading
these locations will return the result 00H. The general
purpose data memory, addressed from 30H to FFH, is
used for data and control information under instruction
command.
All data memory areas can handle arithmetic, logic, in-
crement, decrement and rotate operations directly. Ex-
cept for some dedicated bits, each bit in the data
memory can be set and reset by the SET [m].i and
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RAM Mapping
相關PDF資料 |
PDF描述 |
|---|---|
| HT36A2 | 8-Bit Music Synthesizer MCU |
| HT36A3 | 8-Bit Music Synthesizer MCU |
| HT36A4 | 8-Bit Music Synthesizer MCU |
| HT3810 | 128 NOTE MELODY GENERATORS |
| HT3810A | 128 NOTE MELODY GENERATORS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT36A2 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:8-Bit Music Synthesizer MCU |
| HT36A3 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:8-Bit Music Synthesizer MCU |
| HT36A4 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Music Synthesizer 8-Bit MCU |
| HT36A4_07 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Music Synthesizer 8-Bit MCU |
| HT36ARP | 功能描述:兩端交流開關元件 32-40V RoHS:否 制造商:STMicroelectronics 轉折電流 VBO:45 V 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23 封裝:Reel |
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