WTS701EF WINBOND [Winbond], WTS701EF Datasheet - Page 19
![no-image](/images/no-image-200.jpg)
WTS701EF
Manufacturer Part Number
WTS701EF
Description
WINBOND SINGLE-CHIP TEXT-TO-SPEECH PROCESSOR
Manufacturer
WINBOND [Winbond]
Datasheet
1.WTS701EF.pdf
(77 pages)
- Current page: 19 of 77
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The WTS701 is controlled by a series of SPI transactions to send commands to the device. The
general format of an SPI transaction is shown in
command word. The command word consists of a command byte followed by a command data byte.
At the same time, the status register is shifted out on the MISO line. What follows depends on what
command is sent. The general case is that following the command word, up to n -bytes of data can be
sent to the device and n- bytes can be read from the device. An SPI transaction is finished when SS
is returned to the HIGH condition.
7.3 C
MOSI
MISO
OMMUNICATION
R ESET
MSB
STATUS BYTE 0
7
7
CMD BYTE
P
ROTOCOL
0
0
STATUS BYTE 1
Figure 8. Reset Condition Timing.
Figure 9. SPI Transaction Format.
7
7
CMD DATA
T
time
res et
0
0
7
7
- 19 -
Figure 9.
DATA0
DATA0
0
0
A transaction is always started by sending a
7
7
DATA1
DATA1
T
Publication Release Date: May 2003
re s et
LSB
0
0
> 0.5
µ
s
WTS701
DATAn
DATAn
Revision 3.09
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