EP9312-CBZ Cirrus Logic Inc, EP9312-CBZ Datasheet - Page 281

• Manufacturer Part Number: EP9312-CBZ
• Description: IC ARM9 SOC UNIVERSAL 352PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9312-CBZ

• Core Size: 16/32-Bit
• Core Processor: ARM9
• Speed: 200MHz
• Connectivity: EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, SPI, UART/USART, USB
• Peripherals: AC'97, DMA, I&sup2:S, LCD, LED, MaverickKey, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 8x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 352-BGA
• Controller Family/series: (ARM9)
• No. Of I/o's: 16
• Ram Memory Size: 16MB
• Cpu Speed: 200MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 2
• Digital Ic Case Style: BGA
• Embedded Interface Type: AC97, I2S, SPI, UART, USB
• Rohs Compliant: Yes
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1258

DS785UM1
3. Setup DESTLINELENGTH Register
4. Setup BLKDESTWIDTH Register
5. Setup BLKDESTHEIGHT Register
6. Setup BLKDESTSTRT Register
is the ending pixel position within the word that the pixel-fill will end with. See
8.5.2. Pixel End And Start. Use the DESTPIXELSTRT calculation in the block copy
example shown in
LEN is determined by:
“SRCLINELENGTH”
where WIDTH is determined by:
HEIGHT = the height in lines of the fill area minus 1.
= 9 = 0x9.
to the
SPEL is the starting pixel position within the word that the pixel-fill will begin with. EPEL
Write the line length value to the LEN field in the
Usually the same LEN value is used in both the
Write the value of ‘Stride minus 1’ to the WIDTH field in the
Write the desired value to the HEIGHT field in the
For example, a 20-pixels x 10-lines image has a height of 10 lines. So, HEIGHT = 10 - 1
Write the word-aligned value of the SDRAM address ‘for the beginning of the block fill’
A. Find how many pixels occupy a 32-bit word. For example, four 8-bit pixels can
B. Find the width of the display in pixels. For example, a 640x480 display has a width
C. The line length, LEN, is determined by the stride of the display, that is, how many
A. Find how many pixels occupy a 32-bit word. For example, four 8-bit pixels can
B. Find the width of the image in pixels. For example, a 20 x 10 image has a width of 20
C. The stride of the image is how many 32-bit words are needed to populate the width
occupy a 32-bit word.
of 640 pixels.
32-bit words are needed to populate the width of the display with pixels. From steps
1 and 2, the stride for this example is 640 pixels divided by 4, where 4 is the number
of 8-bit pixels that occupy a word. So, for this example, line length is 640 divided by
4 = 160 = 0xA0.
occupy a 32-bit word.
pixels.
of the image with pixels. From steps 1 and 2, the stride for this example is 20 pixels
divided by 4, where 4 is the number of 8-bit pixels that occupy a word. So, the stride
is 20 divided by 4 = 5. However, the value of WIDTH is defined as the value of stride
less 1. So, WIDTH = 5 - 1 = 4 = 0x004.
“BLKDESTSTRT”
Section
register.
register.
Copyright 2007 Cirrus Logic
8.6.4.1.
“DESTLINELENGTH”
“DESTLINELENGTH”
“BLKDESTHEIGHT”
“BLKDESTWIDTH”
Graphics Accelerator
EP93xx User’s Guide
register and the
register, where
register, where
Section
register,
8-17
8