MCU. HT82A850R Datasheet

HT82A850R Datasheet PDF


Part Number

HT82A850R

Description

Audio MCU

Manufacture

Holtek Semiconductor

Total Page 30 Pages
PDF Download
Download HT82A850R Datasheet


HT82A850R Datasheet
HT82A850R
Audio MCU
Features
· Operating voltage: fSYS= 6MHz/12MHz: 3.3V~5.5V
· Low voltage reset function (3.0V±0.3V)
· Embedded high performance 16 bit PCM DAC
· Built-in digital Programmable Gain Amplifier - PGA
· High-performance 48kHz/8kHz sampling rate for au-
dio software playback
· 8kHz audio recording sampling rate
· Embedded class AB power amplifier for speaker
driving
· Audio playback digital volume control
· 4096´15 program memory
· 384´8 data memory RAM (Bank0,1)
· Programmable frequency divider - PFD
· Integrated SPI hardware circuit
· Play/record interrupt
· HALT function and wake-up feature reduce power
consumption
· 24 bidirectional I/O lines (max.)
· Two 16-bit programmable timer/event counter and
overflow interrupts
· Watchdog Timer
· 16-level subroutine nesting
· Bit manipulation instruction
· 15-bit table read instruction
· 63 powerful instructions
· All instructions executed within one or two machine
cycles
· 48-pin LQFP package
General Description
The HT82A850R is an 8-bit high performance RISC-like
microcontroller designed for USB Phone product appli-
cations. The HT82A850R integrates a 16-bit PCM ADC
and an 8-bit MCU into a single device. The DAC in the
HT82A850R operates at a sampling rate of 48/8kHz
and the 16-bit PCM ADC operates at a frequency of
8kHz for the Microphone input. The DAC in the
HT82A850R also has a digital programmable gain am-
plifier, whose gain ranges from -32dB to +6dB. For the
ADC input, the digital gain range is from 0dB to 19.5dB.
www.DataSheet4U.com
Rev. 1.10
1 July 25, 2007

HT82A850R Datasheet
HT82A850R
Block Diagram
P ro g ra m
ROM
P ro g ra m
C o u n te r
STAC K0
STAC K1
STAC K2
S TA C K 14
S TA C K 15
BP
In te rru p t
C ir c u it
IN T C
In s tr u c tio n
R e g is te r
MP M
U
X
D a ta
M e m o ry
In s tr u c tio n
D ecoder
T im in g
G e n e ra to r
M UX
A LU
S h ifte r
STATU S
O SCO O SCI
AVSS3
V A G R ef
VAG
TG
T I-
T I+
AVDD3
ACC
1 6 - B it A /D
C o n v e rte r
D ig ita l P G A
D ig ita l
V o lu m e
C o n tro l
1 6 - b it
D /A
T M R 0 C M fS Y S /4
U
TM R 0
X
P C 1 /T M R 0
TM R 1
TM R 1C
M
U
X
fS Y S /4
P C 2 /T M R 1
W D TS
W D T P r e s c a le r
PAC PO RT A
PA
E N /D IS
W DT
M
U
X
P A 0~P A 7
fS Y S /4
W DT O SC
PBC PO RT B
PB
P B 0~P B 7
PCC PO RT C
PC
S e r ia l In te r fa c e
PFD
PC3
M P C 4~P C 7
U (S D O , S D I,
X S C S ,S C K )
P C 0 /B Z
M
U
X
P ow er
Am p
LO U T
ROUT
M U S IC _ IN
www.DataSheet4U.com
Rev. 1.10
2 July 25, 2007


Features Datasheet pdf HT82A850R Audio MCU Features · Operatin g voltage: fSYS= 6MHz/12MHz: 3.3V~5.5V · Low voltage reset function (3.0V±0. 3V) · Embedded high performance 16 bit PCM DAC · Built-in digital Programmab le Gain Amplifier - PGA · High-perform ance 48kHz/8kHz sampling rate for au· Play/record interrupt · HALT function and wake-up feature reduce power consu mption · 24 bidirectional I/O lines (m ax.) · Two 16-bit programmable timer/e vent counter and dio software playback · 8kHz audio recording sampling rate · Embedded class AB power amplifier fo r speaker overflow interrupts · Watch dog Timer · 16-level subroutine nestin g · Bit manipulation instruction · 15 -bit table read instruction · 63 power ful instructions · All instructions ex ecuted within one or two machine drivi ng · Audio playback digital volume con trol · 4096´15 program memory · 384 8 data memory RAM (Bank0,1) · Program mable frequency divider - PFD · Integr ated SPI hardware circuit cycles · 48-pin LQFP package General Description The HT82A85.
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