SSD1298 Crystalfontz America, Inc.,, SSD1298 Datasheet - Page 25

• Manufacturer Part Number: SSD1298
• Description: 240 Rgb X 320 Tft Lcd Controller Driver Integrated Power Circuit, Gate And Source Driver With Built-in Ram
• Manufacturer: Crystalfontz America, Inc.,

SSD1298
Data Read
Data Write
Command Read
Command Write
CSB
SCL
SDI
d) 4-wire Serial Peripheral Interface (8 bits)
Transfer starts
The operation is similar to 4-lines serial peripheral interface while DC is not used. There are
altogether 9-bits will be shifted into the shift register on every ninth clock in sequence: DC bit, D7 to
D0 bit. The DC bit (first bit of the sequential data) will determine the following data byte in the shift
register is written to the Display Data RAM (DC bit = 1) or the command register (DC bit = 0).
The clock synchronized serial peripheral interface (SPI) using the chip select line (CSB), serial
transfer clock line (SCL), serial input data (SDI). The serial data transfer starts at the falling edge of
CSB input and ends at the rising edge of CSB.SDC determinate the data of SDI which is register or
data.
DC
DC
1
Rev 1.1
MSB
DB
7
2
DB
6
3
Register / data
P 25/82
DB
4
5
6800 – series Parallel
Interface
18/16/9/8-bits
18/16/9/8-bits
Status only
Yes
DB
5
4
DB
6
3
Figure 6-2: 3-wire SPI interface (9 bits)
Mar 2008
DB
7
Table 6-1 -
2
8
DB
1
Transfer
LSB
DB
9
0
Data bus selection modes
8080 – series Parallel
Interface
18/16/9/8-bits
18/16/9/8-bits
Status only
Yes
Transfer starts
DC
DC
1
MSB
DB
2
7
DB
3
6
Register / data
DB
4
5
MCU Serial Interface
Yes
8-bits
No
8-bits
DB
5
4
DB
6
3
DB
7
2
Transfer
DB
8
1
Solomon Systech
LSB
DB
9
0