EP9312-IB Cirrus Logic Inc, EP9312-IB Datasheet - Page 238

• Manufacturer Part Number: EP9312-IB
• Description: IC ARM920T MCU 200MHZ 352-PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9312-IB

• Core Processor: ARM9
• Core Size: 16/32-Bit
• 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: -40°C ~ 85°C
• Package / Case: 352-BGA
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1259

7
ACRate
FIFOLevel
7-56
Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide
31
15
31
15
Address: 0x8003_0214
Default: 0x0000_0000
Definition: AC Toggle Rate register
Bit Descriptions:
Address: 0x8003_0234
Default: 0x0000_0010
Definition: FIFO Refill Level register
Bit Descriptions:
30
14
30
14
RSVD
29
13
29
13
28
12
28
12
RSVD:
RATE:
RSVD:
LEVEL:
27
27
11
11
RSVD
26
10
26
10
Copyright 2007 Cirrus Logic
25
25
9
9
Reserved - Unknown during read
Rate - Read/Write
The RATE field must be written with a value that is one
less than the number of horizontal video lines before the
AC LCD bias signal is to toggle. Care must be taken when
choosing this value while using the grayscale dithering
algorithms, as a DC build-up may occur if the pixel timing
for the ‘on’ state of the pixel is concurrent with the bias
frequency.
Reserved - Unknown during read
Level - Read/Write
24
24
8
8
RSVD
RSVD
23
23
7
7
22
22
6
6
RATE
21
21
5
5
20
20
4
4
19
19
3
3
LEVEL
18
18
2
2
17
17
1
1
DS785UM1
16
16
0
0