參數(shù)資料
型號: EM73220
廠商: ELAN Microelctronics Corp .
英文描述: 4-Bit Micro-Controller for Speech Product(帶內(nèi)置語音合成器的4位微控制器)
中文描述: 4位微語音產(chǎn)品(帶內(nèi)置語音合成器的4位微控制器控制器)
文件頁數(shù): 1/34頁
文件大?。?/td> 168K
代理商: EM73220
EM73220
4-BIT MICRO-CONTROLLER FOR SPEECH PRODUCT
1
* This specification are subject to be changed without notice.
7.17.1998
GENERAL DESCRIPTION
EM73220 is an advanced single chip CMOS 4-bit micro-controller with built-in speech synthesizer. It
contains 2K-byte ROM, 116-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base and one
timer/counter for the kernel function, in addition, and the EM73220 also contains 5 I/O ports (including 2
output ports for LED driving , 1 input port and 2 bidirection ports) and 4 interrupt sources.
EM73220 can work in dual clock or single clock mode by mask option. When working in dual clock mode,
user can choose CPU working in normal clock or slow clock mode (power-saving mode), in the other way,
working in single clock mode, EM73220 also support user sleep and hold mode for power saving.
The speech synthesizer of EM73220 can perform up to 21 sec. ASPCM speech voice in 6K sample rate, and
it includes 63 voice sections maximum played in ramdom order and sampling rate (4K, 5K, 6K, 8K, 10K) by
programming.
EM73220 combines both micro-controller and speech synthesizer, that can be applicated in many fields.
For example : family applicance, consumer products, toy and sound effect controller .... etc.
FEATURES
Operation voltage
Clock source
: 2.4V to 3.3V.
: Dual clock or single clock system available by mask option.
Dual clock system :
fc : normal clock by ring osc. (only connect resistor outside)
fs : slow clock by Resonator or Crystal.
fc = 2.88 M/960 KHz by mask option.
fs = 32 KHz.
Single clock system :
fc : Ring osc.
fc : 2.88 M/960 KHz by mask option.
: 110 powerful instructions.
: Up to 2.7
μ
s (fc=2.88 MHz).
: 2K X 8 bits.
: 116 X 4 bits.
: 1 port (4-bit) and sleep/hold releasing function are available by mask option.
(each input pin is pull-up and pull-down resistor available by mask option).
: 2 ports (8-bit)(open-drain or push pull; high current for LED driving (20mA) or
low current type.)
: 2 ports (6-bit) (push-pull and open-drain by mask option).
: One 12-bit timer/counter is programmable for timer, event counter and pulse
width measurement.
Built-in time base counter : 22 stages.
Subroutine nesting
: Up to 13 levels.
Interrupt
: External . . . . . 1 Input interrupt sources.
Internal . . . . . . 1 Timer overflow interrupt.
1 Time base interrupt.
1 Speech ending interrupt.
Power saving function
: Single clock system :
Sleep function : system hold internal state and stop osc.
Hold function : system hold internal state and without stop osc.
Instruction set
Instruction cycle time
ROM capacity
RAM capacity
Input port
Output port
Bidirection I/O port
12 bits timer/counter
Patent Number : 51837, 61007 (R.O.C)
Patent Pending : 78101301,83216083 (R.O.C)
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