LCD Display Controller

Note: This example shows 6 red, 6 green and 6 blue bits on the LCD panel. However, different active display panels might have more or different data lines. Consult the LCD panel manufacturer’s datasheet for the actual data lines.

Figure 3-6. Active Color Display Typical Connection

PXA250 Processor

 

 

 

 

B0

L_DD0

 

 

 

B1

L_DD1

 

 

 

B2

L_DD2

 

 

 

B3

L_DD3

 

 

 

B4

L_DD4 - MSB of Blue

 

 

 

B5

L_DD5

 

 

 

G0

L_DD6

 

 

 

G1

L_DD7

 

 

 

G2

L_DD8

 

 

 

G3

L_DD9

 

 

 

G4

L_DD10 - MSB of Green

 

 

 

G5

 

 

 

 

R0

L_DD11

 

 

 

R1

L_DD12

 

 

 

R2

L_DD13

 

 

 

R3

L_DD14

 

 

 

R4

L_DD15 - MSB of Red

 

 

 

R5

 

 

 

 

 

L_PCLK

Clock

L_LCLK

Horizontal Sync

L_FCLK

Vertical Sync

L_BIAS

Data Enable

 

 

 

 

 

LCD Panel

3.4PXA250 Pinout

Table 3-4describes the ball positions for the LCD controller on the PXA250 applications processor.

Table 3-4. PXA250 LCD Controller Ball Positions (Sheet 1 of 2)

Pin Name

Ball Position

 

 

L_DD0

E7

 

 

L_DD1

D7

 

 

L_DD2

C7

 

 

L_DD3

B7

 

 

L_DD4

E6

 

 

L_DD5

D6

 

 

L_DD6

E5

 

 

L_DD7

A6

 

 

L_DD8

C5

 

 

L_DD9

A5

 

 

L_DD10

D5

 

 

L_DD11

A4

 

 

PXA250 and PXA210 Applications Processor Design Guide

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Intel PXA250 and PXA210 manual PXA250 Pinout, PXA250 LCD Controller Ball Positions Sheet 1, Pin Name Ball Position

PXA250 and PXA210 specifications

The Intel PXA250 and PXA210 processors, part of the Intel XScale architecture, were introduced in the early 2000s, targeting mobile and embedded applications. They are known for their low power consumption, high performance, and advanced multimedia capabilities, making them suitable for a wide range of devices, including PDAs, smartphones, and other portable computing devices.

The PXA250, which operates at clock speeds ranging from 400 MHz to 624 MHz, features a superscalar architecture that allows it to issue multiple instructions per clock cycle. This enhances the overall performance for demanding applications while maintaining low power usage. It supports a variety of peripheral interfaces, including USB, Ethernet, and various memory types, which contributes to its versatility in different product designs.

One of the key technologies in the PXA250 is the integrated Intel Smart Repeat Technology, which optimizes data processing, thereby reducing the amount of power consumed during operation. This feature is particularly important for battery-powered devices, as it extends the overall battery life, allowing for longer usage times in mobile environments. Additionally, the PXA250 includes a dedicated graphics acceleration unit, which enables enhanced graphics and multimedia performance suited to modern applications at the time.

In contrast, the PXA210 is a more entry-level processor, aimed at cost-sensitive applications. Operating at lower clock speeds, typically around 200 MHz to 400 MHz, it forgoes some of the advanced performance features of the PXA250 while still offering a good balance of performance and power efficiency. The PXA210 is less complex, making it suitable for simpler devices that do not require the extensive capabilities of the PXA250.

Both processors utilize the Intel XScale architecture, which is based on the ARM instruction set. They are built on a 0.13-micron process technology, enabling higher density and lower power consumption compared to their predecessors. With integrated memory controllers and bus interfaces, they facilitate efficient data handling and connectivity options.

In summary, both the Intel PXA250 and PXA210 processors played a crucial role in the evolution of mobile computing by providing powerful processing capabilities with energy efficiency. Their features and technologies enabled device manufacturers to create innovative products that catered to the growing demand for portable devices during that era.