HT82A851R 반도체 회로 부품 판매점
USB Audio MCU
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 Holtek Semiconductor |
HT82A851R
USB Audio MCU
Features
· Operating voltage: fSYS = 6M/12MHz: 3.3V~5.5V
· 16 bidirectional I/O lines (max.)
· Two 16-bit programmable timer/event counters and
overflow interrupts
· 4096´15 program memory ROM
· 384´8 data memory RAM (Bank0,1)
· USB 2.0 full speed compatible
· USB spec V1.1 full speed operation and USB audio
device class spec V1.0
· Built-in digital PGA (Programmable Gain Amplifier)
· 48kHz/8kHz sampling rate for audio playback
controlled by software option
· 8kHz audio recording sampling rate
· Supports audio playback digital volume control
· 5 endpoints supported (endpoint 0 included)
· Supports 1 Control, 2 Interrupt, 2 Isochronous
transfer
· Two hardware implemented Isochronous transfers
· Total FIFO size: 464 bytes
(8, 8, 384, 32, 32 for EP0~EP4)
· Programmable frequency divider (PFD)
· Integrated SPI hardware circuit
· Play/Record Interrupt
· HALT and wake-up features reduce power
consumption
· 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
· Low voltage reset function (3.0V±0.3V)
· 24-pin SSOP package
General Description
The HT82A851R is an 8-bit high performance RISC-like
microcontroller designed for wireless USB Phone prod-
uct applications. The HT82A851R combines a SPI,
USB transceiver, SIE (Serial Interface Engine), audio
class processing unit, FIFO and an 8-bit MCU into a sin-
gle chip. The play frequency in the HT82A851R oper-
ates at a sampling rate of 48/8kHz. HT82A851R has a
digital programmable gain amplifier. The gain range is
from -32dB to +6dB. For the Isochronous input, the digi-
tal gain range is from 0dB to 19.5dB.
www.DataSheet4U.com
Rev. 1.20
1 June 15, 2007
HT82A851R
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 ATA
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
USBDP
USBDN
ACC
U S B 1 .1 X C V R
V 3 3 O 3 .3 V R e g u la to r
F IF O
D ig ita l
PG A
U S B 1 .1
F u ll S p e e d E n g in e
D ig ita l V o lu m e
C o n tro l
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
E N /D IS
W DT
M
U
X
fS Y S /4
W DT O SC
PAC PO RT A
PA
P A 0~P A 7
PCC PO RT C
PC
S e r ia l
In te rfa c e
PFD
PC3
M
U P C 4~P C 7
X (S D O , S D I, S C S , S C K )
P C 0 /B Z
Pin Assignment
www.DataSheet4U.com
PA3
PA2
PA1
PA0
P C 7 /S C K
P C 6 /S C S
P C 5 /S D I
P C 4 /S D O
PC3
P C 2 /T M R 1
P C 1 /T M R 0
P C 0 /B Z
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
H T82A 851R
2 4 S S O P -A
PA4
PA5
PA6
PA7
DVSS1
V 33O
USBDP
USBDN
DVDD1
RESET
O SCO
O SCI
Rev. 1.20
2 June 15, 2007
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제조업체: Holtek Semiconductor
( holtek )
HT82A851R data
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[ HT82A851R.PDF ]
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