Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

PCF8813 View Datasheet(PDF) - Philips Electronics

Part Name
Description
MFG CO.
PCF8813
Philips
Philips Electronics Philips
'PCF8813' PDF : 72 Pages View PDF
Philips Semiconductors
(67 + 1) × 102 pixels matrix LCD driver
Product specification
PCF8813
handbookS, CfulEl pagewidth
SCLK
SDATA
data data data data data data
display data string
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DB7 DB6 DB5 DB4
instruction
MGW747
Fig.18 Transmission interrupted by SCE.
9.1.2 READ MODE
The interface read mode means that the microcontroller
reads data from the PCF8813. To do so the microcontroller
first has to send a command, the read status command,
and then the PCF8813 will respond by transmitting data on
the SDOUT line. After that SCE is required to go HIGH
before a new command is sent (see Fig.17).
The PCF8813 samples SDATA at rising SCLK edges, but
shifts SDOUT data at falling SCLK edges. Thus the
microcontroller reads SDOUT data at rising SCLK edges.
After the read status command has been sent, the SDATA
line must be set to 3-state not later then at the falling SCLK
edge of the last bit (see Fig.19).
handbook, fSulCl pEagewidth
RES
SCLK
SDATA
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
SDO
instruction
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
read out data
Fig.19 SPI 3-line and 4-line read mode.
MGU629
2004 Mar 05
19
Share Link: GO URL

All Rights Reserved © qdatasheet.com  [ Privacy Policy ] [ Contact Us ]