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W528Sxx Schematic ( PDF Datasheet ) - Winbond

Teilenummer W528Sxx
Beschreibung ADPCM VOICE SYNTHESIZER
Hersteller Winbond
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Gesamt 17 Seiten
W528Sxx Datasheet, Funktion
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W528SXX Data Sheet
Table of Contents-
ADPCM VOICE SYNTHESIZER
(PowerSpeechTM)
1. GENERAL DESCRIPTION ......................................................................................................... 2
2. FEATURES ................................................................................................................................. 2
3. PAD CONFIGURATIONS ........................................................................................................... 3
4. PAD DESCRIPTION ................................................................................................................... 4
5. BLOCK DIAGRAM ...................................................................................................................... 5
6. FUNCTIONAL DESCRIPTION ................................................................................................... 5
6.1 Instruction Set Description................................................................................................. 5
6.2 Conditional Instructions ..................................................................................................... 9
6.3 End Instruction................................................................................................................... 9
6.4 Program Structure Features and Execution Rules............................................................ 9
6.5 Mask Options................................................................................................................... 10
6.6 Speech Equation Description .......................................................................................... 10
6.7 Programmable Power-on Initialization............................................................................. 11
6.8 Progamming Examples ................................................................................................... 11
7. ELECTRICAL CHARACTERISTICS......................................................................................... 14
7.1 Absolute Maximum Ratings............................................................................................. 14
7.2 DC Characteristics........................................................................................................... 14
8. APPLICATION CIRCUIT........................................................................................................... 15
8.1 Supplement...................................................................................................................... 15
9. REVISION HISTORY ................................................................................................................ 17
Publication Release Date: June 13, 20033
- 1 - Revision A2






W528Sxx Datasheet, Funktion
W528SXX
Instructions are programmed by writing LOAD and JUMP commands into the R0, EN, STOP, and
MODE registers.
Unconditional Instructions:
1. LOAD (LD) Command:
LD R0, value:
This instruction is used to load a voice-group entry value into register R0. The voice-group entry value
may range from 0 to 255. The initial value of the R0 register is "00000000."
LD EN, operand:
This instruction is used to define the trigger interrupt settings by loading the operand message into
register EN. The initial value of the EN register is "11111111."
a. The operand is an 8-bit value that can be entered in decimal (default) or hexadecimal
(with "0x" as a prefix).
b. EN is an 8-bit register that is used to enable/disable the rising/falling edge of each of the four
trigger inputs.
The 8 bits correspond to the rising/falling edges of the triggers as shown below:
Bit: 7 6 5 4 3 2 1 0
TG: 4R 3R 2R 1R 4F 3F 2F 1F
where "nR/F" represents the rising/falling edge of the n-th trigger pin.
c. When any one of the eight bits is set to "1" (default), the corresponding trigger will interrupt the
current state at the edge indicated. When the bits are set to "0," the triggers will be disabled.
d. The voice group entry addresses correspond to the interrupt vectors as follows:
TG: 4R 3R 2R 1R 4F 3F 2F 1F
Group: 7
6543210
EXAMPLE:
The instruction "LD EN, 0x41" is programmed.
EXPLANATION:
a. "41" is a hexadecimal value equal to the binary value "0100 0001."
b. These 8 bits of data represent the following trigger interrupt settings:
4R, 3R, 2R, 1R, 4F, 3F, 2F, 1F
     
0 100 0 0 0 1
RESULT:
a. When the rising edge of TG3 (3R) is activated, the EN register will cause TG3 to interrupt the
current playing state and jump immediately to voice group 6, the voice group that corresponds
to 3R.
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W528Sxx pdf, datenblatt
W528SXX
b. Level-Hold Trigger Mode
0: LD EN, 0x11
; Enable TG1 rising/falling edge input.
H4 + sound1 + T4
JP 0
; Repeat sound1 until TG1 key released.
4: END
; As soon as TG1 key is released, execute this group entry.
The timing diagram is shown below:
case 1:
TG1:
case 2:
TG1:
AUD:
Stop Immediately
AUD:
Sound 1
Stop Immediately
c. Complete-Cycle Level Hold
0: LD EN, 0x01
; Enable TG1 falling edge only.
H4 + sound1 + T4
JP 0 @TG1_LOW ; If TG1 status is low level voltage (trigger is pressed), then j ump
to 0;
if not, execute next instruction (END).
END
The timing diagram is shown below:
case 1:
TG1:
case 2:
TG1:
AUD:
Sound 1
AUD:
Sound 1 Sound 1
d. Single-Cycle Level Hold
0: LD EN, 0x11
; Enable both falling and rising edge input of TG1.
H4 + sound1 + T4
END
4: END
; As soon as TG1 is key released, execute this group entry.
- 12 -

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