SSD1901 View Datasheet(PDF) - Solomon Systech

Part Name

Description

Manufacturer

SSD1901

TFT Graphics Controller

Solomon Systech  

bit 7

bits 6-0

CLK Selection

This bit controls the source of Operating Clock (CLK). When this bit = 0, CLK input is come from CLKI pin

and BCLK pin must be tied to VSS. When this bit = 1, CLK input is come from BCLK pin and CLKI pin must

be tied to IOVDD .

Input Clock Bits [6:0]

This register further divides down the Operating Clock (CLK) on top of REG[62h] bit 4. These bits are ef-

fective when BCLK as the source of CLK (REG[0Bh] bit 7 = 1). The following table shows the selection of CLK.

REG[62h] bit 4

CLK

0

----------------------------C-----L---K-----------------------------

(REG [0Bh]bits 6 – 0 ) + 1

1

-----------------------------------C----L----K------------------------------------

2 × (( REG[0Bh ]bits6 – 0) + 1)

Table 6-1 Input Clock Register Selection

REG[60h] Product Code Register

Address = 1FFE0h

Product

Code Bit 5

Product

Code Bit 4

Product

Code Bit 3

Product

Code Bit 2

Product

Code Bit 1

Product

Code Bit 0

Revision

Code Bit 1

Read Only.

Revision

Code Bit 0

bits 7-2

bits 1-0

Product Code

This is a read-only register that indicates the product code of the chip. The product code is 100000.

Revision Code

This is a read-only register that indicates the revision code of the chip. The revision code is 00.

REG[61h] Mode Register 0

Address = 1FFE1h

1

0

1

FPLine

Polarity

FPFrame

Polarity

Mask

FPSHIFT

Read/Write.

0

Data Width

bit 4

bit 3

bit 2

bit 0

FPLINE Polarity

This bit controls the polarity of FPLINE. When this bit = 0, FPLINE is active low. When this bit = 1, FPLINE

is active high.

FPFRAME Polarity

This bit controls the polarity of FPFRAME. When this bit = 0, FPFRAME is active low. When this bit = 1,

FPFRAME is active high.

Mask FPSHIFT

When this bit = 1, FPSHIFT is masked during non-display periods

Data Width

This bit select the display data format. When this bit =0, 9-bit TFT panel is selected. When this bit =1, 12-

bit TFT panel is selected.

SOLOMON

REV 1.1

07/2001

SSD1901

11

Share Link: