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EPVP6200 Datasheet(PDF) 19 Page - ELAN Microelectronics Corp

Part No. EPVP6200
Description  VFD Controller
Download  57 Pages
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Maker  EMC [ELAN Microelectronics Corp]
Homepage  http://www.emc.com.tw
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 19 page
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ePVP6200
VFD Controller
This specification is subject to change without further notice.
11.18.2004 (V1.53) 13 of 57
7.2.7 R6 (PORT6 Output Data, SPI Data Buffer)
a) PAGE 0 (PORT6 Output Data Register for HV)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P67
P66
P65
P64
P63
P62
P61
P60
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
b) PAGE 2 (SPI Data Buffer)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SPIB7
SPIB6
SPIB5
SPIB4
SPIB3
SPIB2
SPIB1
SPIB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 0 ~ Bit 7 (SPIB0 ~ SPIB7) : SPI data buffer
If you write data to this register, the data will write to SPIW register. If you read this data, it will
read the data from SPIR register. Please refer to the following figure.
Read/Write
Shift Register
STB
CLK
DIN
DOUT
RBF_INT
STB_INT
Fig. 4a SPI Block Diagram
DOUT
SOUT
RBF-INT
STB-INT
SCK
DIN
STB
The second byte data writer to the SPI buffer
When Write the data to SPI buffer, the
hardware knows for serial output mode
The third byte data writer to the SPI buffer
SPI function start
The first byte data by shift register transmission finish
&
Second byte data by R/W buffer sends to the shift register
The first byte data by R/W buffer
sends to the shift register
T
he first byte data writer to the SPI buffe
SPI data transmission application note:
:
The following conditions have to conform
RBF interrupt flag must =1
RBF interrupt mask must =1
STB must = low
CLK must = Hi
Fig. 4b SPI Timing Diagram




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