參數(shù)資料
型號(hào)： HT36A1
廠商： Holtek Semiconductor Inc.
英文描述： Music Synthesizer 8-Bit MCU
中文描述： 音樂(lè)合成器8位微控制器
文件頁(yè)數(shù)： 7/39頁(yè)
文件大小： 286K
代理商： HT36A1
HT36A1
Rev. 1.00
7
August 15, 2005
other type is for wavetable code, which is addressed by
the start address ST11~0. On the program type,
2
13
+ PC12~0. On the wave table
WA15~0= PF2~0
ROM type, WA15~0=ST11~0
2
5
.
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 16 bits, addressed by the bank pointer, program
counter and table pointer.
Certain locations in the program memory of each bank
are reserved for special usage:
Location 000H on bank0
This area is reserved for the initialization program. Af-
ter chip reset, the program always begins execution at
location 000H on bank0.
Location 008H
This area is reserved for the Timer Counter 0 interrupt
service program on each bank. If timer interrupt results
from a timer counter 0 overflow, and if the interrupt is
enabled and the stack is not full, the program begins ex-
ecution at location 008H corresponding to its bank.
Location 00CH
This area is reserved for the Timer Counter 1 interrupt
service program on each bank. If a timer interrupt re-
sults from a Timer Counter 1 overflow, and if the inter-
rupt is enabled and the stack is not full, the program
begins execution at location 00CH corresponding to
its bank.
Table location
Any location in the ROM space can be used as
look-up tables. The instructions TABRDC [m] (the cur-
rent page, 1 page=256 words) and TABRDL [m] (the
last page) transfer the contents of the lower-order
byte to the 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, the
higher-order byte of the table word are transferred to
the TBLH. The Table Higher-order byte register
(TBLH) is read only. The Table Pointer (TBLP) is a
read/write register (07H), which indicates the table lo-
cation. Before accessing the table, the location must
be placed in TBLP. The TBLH is read only and cannot
be restored. If the main routine and the ISR (Interrupt
Service Routine) both employ the table read instruc-
tion, the contents of the TBLH in the main routine are
likely to be changed by the table read instruction used
in the ISR. Errors can occur. In this case, using the ta-
ble read instruction in the main routine and the ISR si-
multaneously should be avoided. However, if the table
readinstructionhastobeappliedinboththemainrou-
tine and the ISR, the interrupt should be disabled prior
to the table read instruction. It will not be enabled until
the TBLH has been backed up. All table related in-
structions need 2 cycles to complete the operation.
These areas may function as normal program mem-
ory depending upon user requirements.
Bank pointer
The program memory is organized into 8 banks and
each bank into 8192 16 bits of program ROM. PF2~0
is used as the bank pointer. After an instruction has
been executed to write data to the PF register to se-
lect a different bank, note that the new bank will not be
selected immediately. It is not until the following in-
struction has completed execution that the bank will
be actually selected. It should be note that the PF reg-
isterhastobeclearedbeforesettingtooutputmode.
Wavetable ROM
The ST11~0 is used to defined the start address of each
sample on the wavetable and read the waveform data
from the location. HT36A1 provides 16 output address
lines from WA15~0, the ST11~0 is used to locate the
major 16 bits i.e. WA15~5 and the undefined data from
WA4~0 is always set to 00000b. So the start address of
each sample have to be located at a multiple of 32. Oth-
Instruction(s)
Table Location
*15
*14
*13
*12
*11
*10
*9
*8
*7
*6
*5
*4
*3
*2
*1
*0
TABRDC [m]
P15
P14
P13
P12
P11
P10
P9
P8
@7
@6
@5
@4
@3
@2
@1
@0
TABRDL [m]
P15
P14
P13
1
1
1
1
1
@7
@6
@5
@4
@3
@2
@1
@0
Table Location
Note:
*12~*0: Bits of table location
@7~@0: Bits of table pointer
P12~P8: Bits of current Program Counter
P15~P13: Bits of bank PF2~PF0
&
&
6 :
)
;
) )
)
;
; =
:
)
% ; ; 4
)
) ' -
) > ;
*
&
% ; ; 4
)
) ' -
) > ;
*
/ / / &
. ;
@ ) )
=
) < ; : )
) ; ) / 5
/ / &
6 :
)
;
) )
)
;
&
#
A 1
)
3
;
)
; =
:
Program Memory for Each Bank
相關(guān)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(guān)代理商/技術(shù)參數(shù)
參數(shù)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(kāi)關(guān)元件 32-40V RoHS:否 制造商:STMicroelectronics 轉(zhuǎn)折電流 VBO:45 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*