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PDF HT85096 Data sheet ( Hoja de datos )
| Número de pieza | HT85096 | |
| Descripción | Green Voice | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HT85096 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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HT86XXX
8-Bit Voice Synthesizer MCU
Features
· Operating voltage: 2.4V~5.2V
· Build-in low supply voltage detection circuit
(2.2V or 3.3V)
· System clock: 4MHz~8MHz
· Crystal or RC oscillator for system clock
· 24 I/O pins with 4 shared pins included
· 8K´16-bit program ROM
· 208´8-bit RAM
· One external interrupt input
· Three 16-bit programmable timer counter and over-
flow interrupts
· 12-bit high quality D/A output by transistor or
HT82V733
· Built-in voice ROM in various capacity
· One optional 32768Hz crystal oscillator for RTC time
base (8-bit counter with 3-bit prescaler)
· Watchdog Timer
· 8-level subroutine nesting
· HALT function and wake-up feature reduce power
consumption
· Up to 1ms (0.5ms) instruction cycle with 4MHz (8MHz)
system clock
· Support 16-bit table read instruction (TBLP, TBHP)
· 63 powerful and efficient instructions
· 68-pin PLCC package
Applications
· Intelligent educational leisure products
· Alert and warning systems
· High end leisure product controllers
· Sound effect generators
General Description
The HT86XXX series are 8-bit high performance
microcontroller with voice synthesizer and tone genera-
tor. The HT86XXX is designed for applications on multi-
ple I/Os with sound effects, such as voice and melody. It
can provide various sampling rates and beats, tone lev-
els, tempos for speech synthesizer and melody genera-
tor. It has a single built-in high quality, D/A output. There
is an external interrupt which can be triggered with fall-
ing edge pulse or falling/rising edge pulse. Low voltage
detection is provided to reset under 2.2V or 3.3V.
The HT86XXX is excellent for versatile voice and sound
effect product applications. The efficient MCU instruc-
tions allow users to program the powerful custom appli-
cations. The system frequency of HT86XXX can be up
to 8MHz under 2.4V and include a HALT function to re-
duce power consumption.
Selection Table
Body
HT86072
Voice ROM size 1536K-bit
Voice length
72 sec
HT86144
3072K-bit
144 sec
HT86192
4096K-bit
192 sec
Note: * Available in 4Q, 2002
* Voice length is estimated by 21K-bit sampling rate
HT86384
8192K-bit
384 sec
HT86576*
12288K-bit
576 sec
HT86A00*
16392K-bit
768 sec
Rev. 1.00
1 November 1, 2002
1 page  
HT86192
HT86XXX
(0 ,0 )
PA7 1
PA6 2
PA5 3
PA4 4
PA3 5
34 O S C 2
PA2 6
PA1 7
PA0 8
PB7 9
P B 6 10
P B 5 11
33 O S C 1
P B 4 12
3 2 IN T
P B 3 13
P B 2 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Chip size: 2215´4175 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.00
5 November 1, 2002
5 Page 
HT86XXX
Functional Description
Execution flow
The system clock for the HT86XXX series is derived
from either a crystal or an RC oscillator. It is internally di-
vided into four non-overlapping clocks. One instruction
cycle consists of four system clock cycles.
Instruction fetching and execution are pipelined in such
a way that a fetch takes one instruction cycle while de-
coding and execution takes the next instruction cycle.
However, the pipelining scheme causes each instruc-
tion to effectively execute within one cycle. If an instruc-
tion changes the program counter, two cycles are
required to complete the instruction.
Program counter - PC
The 13-bit program counter (PC) controls the sequence
in which the instructions stored in program ROM are ex-
ecuted.
After accessing a program memory word to fetch an in-
struction code, the contents of the program counter are
incremented by one. The program counter then points
to the memory word containing the next instruction
code.
When executing a jump instruction, conditional skip ex-
ecution, loading PCL register, subroutine call, initial re-
set, internal interrupt, external interrupt or return from
T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3 T4
S y s te m C lo c k
O S C ( R C o n ly )
P1
P2
P3
P4
In te rn a l
P hase
C lo c k s
PC PC
PC +1
PC +2
. e tc h IN S T (P C )
E x e c u te IN S T (P C -1 )
. e tc h IN S T (P C + 1 )
E x e c u te IN S T (P C )
Execution flow
. e tc h IN S T (P C + 2 )
E x e c u te IN S T (P C + 1 )
Mode
*12 *11 *10
Initial Reset
000
External or Serial Input Interrupt 0 0 0
Timer/Event Counter 0 Overflow 0 0 0
Timer/Event Counter 1 Overflow 0 0 0
Timer Counter 2 Overflow
000
Timer Counter 3 Overflow
000
Skip
Loading PCL
*12 *11 *10
Jump, Call Branch
#12 #11 #10
Return from Subroutine
S12 S11 S10
*9
0
0
0
0
0
0
*9
#9
S9
Program Counter
*8 *7 *6 *5 *4 *3 *2 *1 *0
000000000
000000100
000001000
000001100
000010000
000010100
PC+2
*8 @7 @6 @5 @4 @3 @2 @1 @0
#8 #7 #6 #5 #4 #3 #2 #1 #0
S8 S7 S6 S5 S4 S3 S2 S1 S0
Note: *12~*0: Program counter bits
#12~#0: Instruction code bits
Program counter
S12~S0: Stack register bits
@7~@0: PCL bits
Rev. 1.00
11 November 1, 2002
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet HT85096.PDF ] | |
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