EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 232

• Manufacturer Part Number: EP9301-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQZ

• Core Size: 16/32-Bit
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Core Processor: ARM9
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• Number Of I /o: 19
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 208-TQFP, 208-VQFP
• Controller Family/series: (ARM9)
• No. Of I/o's: 19
• Ram Memory Size: 16MB
• Cpu Speed: 166MHz
• No. Of Timers: 4
• Digital Ic Case Style: TQFP
• Embedded Interface Type: SPI
• 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: 598-1136

7
Other Video Registers
Brightness
7-50
Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide
31
15
Address: 0x8003_0020
Default: 0x0000_0000
Definition: Brightness Control register.
Bit Descriptions:
30
14
29
13
28
12
RSVD:
CMP:
CNT:
CMP
27
11
26
10
Copyright 2007 Cirrus Logic
25
9
If the Offset value is 0x0, no offset is used and addressing
proceeds normally.
Reserved - Unknown during read
Compare - Read/Write
The Compare value written to this field determines the
brightness control duty cycle (see CNT below) - that is,
when the brightness signal to the BRIGHT pin is ‘1’ or ‘0’.
Count - Read/Write
The Count value written to this field specifies the number
of horizontal lines counted during a brightness waveform
period. The counter counts down from the Count value to
0x0.
The CNT value and the CMP value are used to construct a
brightness control waveform on the BRIGHT pin by this
relationship:
When Count > Compare, or Count = Compare, the
brightness signal to the BRIGHT pin is ‘0’.
When Count < Compare, the brightness signal to the
BRIGHT pin is ‘1’.
The BRIGHT pin is ‘0’ (zero% brightness) after reset.
24
8
RSVD
23
7
22
6
21
5
20
4
CNT
19
3
18
2
17
1
DS785UM1
16
0