GPL32611B datasheet(11/22 Pages) GENERALPLUS

11 / 22 page

GPL32611B

Proprietary & Confidential

Oct. 02, 2018

Version: 1.3

5. FUNCTION DESCRIPTIONS

5.1. CPU

The GPL32611B, capable of running up to 96MHz, integrates the

ARM7TDMI CPU with Embedded JTAG ICE and Cache Controller,

which supports 8K-byte unified ID-cache, 8-entry write buffer and

38K-byte internal SRAM.

When Cache is enabled, any CPU

’s

R/W will be fetched to the cache instead of external memory to

enhance CPU performance.

In addition, the internal SRAM bus,

I/O bus and cache bus are separated to maximize CPU bus

bandwidth.

5.2. Memory

5.2.1. Internal SRAM

The 38K-byte internal SRAM is generally treated as program

’s

stack.

It can also be accessed by other masters, for example,

DMA, USB, PPU, SPU, or NAND Flash controller to reduce

bandwidth of external memory.

5.2.2. External memory

The 8-bit NAND flash data bus is supported with an embedded

4/8/12/16/24/40/60-bit ECC/ BCH calculation circuit which can

realize the error correction mechanism on SLC/MLC NAND flash.

5.3. PLL, Clock, Power Mode

5.3.1. PLL (Phase Lock Loop)

There are three PLLs embedded in GPL32611B, the 1st PLL

capable of pumping up to 96MHz, the 2nd PLL for 27MHz, and the

3rd PLL for 12MHz.

The output frequency of fast PLL is

programmable and is ranged from 12MHz ~ 129MHz. (3MHz per

step)

5.3.2. System clock

One of the following system clocks can be selected via register

configuration: 32768Hz, 12MHz or 96MHz (determined by fast

PLL’s output frequency). Furthermore, a clock divider is provided

to reduce power consumption. (The divisor is up to 128).

5.4. Power Savings Mode

The GPL32611B features four power saving modes to extend

power life; Normal, Wait, Halt, and Sleep

Mode

CPU

System

RTC

After wakeup

Normal

Wait

OFF

Next Instruction

Halt

OFF

Reset CPU or not

Sleep

OFF

Reset System

The Wait, Halt, and Sleep modes are entered by writing specific

value to designated port.

The wake-up source can be interrupt,

Time Base, Key Change, RTC, EXT INT, UART RX or ADC.

5.5. Picture Process Unit

The GPL32611B equips a powerful graphic engine; see the table

for all features.

Item

Feature

Text

Layer

1. Maximum 4 text layers at the same time.

2. Supports text size up to 4096x4096.

3. Supports virtual 3D effect.

4. Supports Text rotate and scale effect.

5. Supports horizontal/vertical compression effect.

6. Supports horizontal movement effect.

7. Supports 64-level alpha blending.

Sprite

1. Max. 1024 internal sprites and 4096 extend

sprites at the same time.

2. Each sprite supports virtual 3D texture mapping

3. Each sprite support 64-level rotate function.

4. Each sprite supports 64-level zoom in/out

function from 1/32 to 8.75 times.

5. Each sprite supports 64-level alpha blending.

6. Each sprite supports 3 kinds of mosaic effect.

7. All above function can combine at the same

time.

8. Supports color dither.

9. Supports alpha channel mode.

10. Supports texture mapping with anti-aliasing and

bilinear interpolation.

Color

1. Text layer support 4/16/64/256-color palette and

RGB1555/

RGB565/

RGBG/

YUYV/

RGBA4444/ RGBA8888 bitmap mode.

2. Sprite supports 4/16/64/256-color palette mode

and

RGB1555/

RGB565/

RGBG/

YUYV

RGBA4444/ RGBA8888 bitmap mode.

3. 1024 palette entry for text layers and all sprites.

4. Supports 16/24-bit level of palette index color.

Other

Features

1. Supports light gun interface.

2. Supports sprite DMA function.

3. Supports four individual windows.

5.6. Video Input Interface

The GPL32611B supports video input from sensor or TV decoder.

The maximum input resolution is 4095 x 4095.

A built-in scaling

unit can be used to scale input data from arbitrary resolution to

VGA or QVGA mode.

A motion detecting engine is able to

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