W523A008 Datasheet, PDF (11/19 Pages) Winbond – HIGH FIDELITY POWER SPEECH

W523AXXX
To place the W523Axxx in CPU mode, program the code according to the following example.
W523A015
CPU; Reserved word, used as a directive to notify the compiler for post processing.
LED1
FREQ2
POI:
LD MODE0,XX1XX0XXB
LD EN0, 0x00
H5+voice1+T5
END
;bit2=0 BUSY
34: ; Direct trigger or CPU interrupt.
H5+voice2+T5
END
The defaulted operating mode in W523Axxx is normal mode (or manual trigger mode), which is
identified by the "Normal" and "CPU" option control. To enter the CPU mode, the "CPU" declaration
must be inserted in the declaration region of program (*.out). In CPU mode, the bit MODE0.2, which is
defined as STPA or BUSY selection for the STPA/BUSY pin, will be selected as "0" (BUSY output)
automatically by the compiler unless otherwise specified explicitly by the STPA directive. The CPU,
STPA, and BUSY directives can appear only in the first paragraph of the *.out files so that the
compiler will automatically interpret them as Stop definitions in the POI interrupt vector. If these
directives are placed elsewhere, an error message will be issued during the compilation process.
In the program example shown above, the external µC will transfer one byte data "34" to W523Axxx.
The number 34 (Decimal) is equal to 00100010b (Binary). The interface timing is shown below.
TG1
(Data)
<1>
<2>
LSB
MSB
01000100
<3>
<4>
TG2
(Clock)
TDEB
T CRD
<1> When TG1 is pulled low, the W523Axxx stops playing voice or executing instruction and waits for data from
the external µC.
<2> If TG1 is debounced OK, the W523Axxx will clear the CPU receiving buffer.
<3> 8-bit data are transferred by TG1 (Data) and TG2 (Clock). LSB is sent firstly.
<4> TG1 returns to high and starts the CPU interrupt service. In this case W523A015 will play the
H51+voice2+T51 sections and the STPA/BUSY pin is pulled high during the playing period.
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Publication Release Date: May 20, 2003
Revision A3