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參數(shù)資料
| 型號(hào)： | W52906 |
| 英文描述： | Speech Synthesizer |
| 中文描述： | 語音合成器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 93K |
| 代理商： | W52906 |
W529XX
Publication Release Date: April 1997
- 3 -
Revision A3
BLOCK DIAGRAM
VECTOR
JUMP/GO
Controller
Registers
ALU
I/O Port
OSC & Timing
Generator
Power
Regulator
TG
OSC
ROM
Decoder
Synthesizer
D/A
Control
SPK
RESULT
DD
SS
I/O
FTEST
V
V
RESET
FUNCTIONAL DESCRIPTION
Trigger Inputs
The W529XX provides four direct trigger input pins that are pulled high internally. All of these trigger
inputs can be independently defined to be enabled or disabled for the rising or falling edges. The
debounce time of the trigger inputs can be set as 160
μ
S to 320
μ
S or 20 mS to 40 mS.
SPK Output
This pin is a current-type voice output, which is connected to the output of the internal D/A converter.
The full-scale output of the 8-bit D/A convereter is 5 mA, which is sufficient to drive an external 8
speaker through the amplification of a low-power NPN transistor with a
β
of 120 to 160.
I/O Pin
The I/O pins, IO1 to IO8, are multiplexed for four different functions: SCAN/FTEST, LED, STOP, and
INPUT. All of these pins can be defined independently as shown in the following table.
GROUP
0
1
2
3
IO8
IO7
INPUT/STOP
IO6
IO5
IO4
IO3
INPUT/LED
SCAN/LED
SCAN/STOP
LED/STOP
IO2
IO1
FTEST/LED
SCAN/LED
INPUT/LED
LED/STOP
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