EPVP6200 Datasheet, PDF (19/57 Pages) ELAN Microelectronics Corp – VFD Controller

ePVP6200
VFD Controller
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
P67
P66
P65
P64
P63
P62
W-0
W-0
W-0
W-0
W-0
W-0
Bit 1
P61
W-0
Bit 0
P60
W-0
b) PAGE 2 (SPI Data Buffer)
Bit 7
Bit 6
Bit 5
Bit 4
SPIB7 SPIB6 SPIB5 SPIB4
R/W
R/W
R/W
R/W
Bit 3
SPIB3
R/W
Bit 2
SPIB2
R/W
Bit 1
SPIB1
R/W
Bit 0
SPIB0
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
RBF_INT
STB
CLK
DIN
DOUT
Shift Register
STB_INT
Fig. 4a SPI Block Diagram
STB
DIN
DOUT
SCK
STB-INT
RBF-INT
SOUT
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
This specification is subject to change without further notice.
11.18.2004 (V1.53) 13 of 57