EP9312-CB Cirrus Logic Inc, EP9312-CB Datasheet - Page 756

• Manufacturer Part Number: EP9312-CB
• Description: System-on-Chip Processor
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9312-CB

• Peak Reflow Compatible (260 C): No
• A/d Converter: 12 Bits
• Leaded Process Compatible: No
• No. Of I/o Pins: 65
• Package / Case: 352-BGA
• 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: 0°C ~ 70°C
• 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: 598-1257

25
25-18
Analog Touch Screen Interface
EP93xx User’s Guide
Mask:
Definition:
Bit Descriptions:
03FF_FFFF
Analog Touch screen Setup and Deviation Register.
RSVD:
TDTCT:
SDLY:
NSMP:
DEV:
ENABLE:
DLY:
Copyright 2007 Cirrus Logic
Reserved. Unknown during read.
TouchDetect Read only bit. Allows the ARM Core the
ability to read the state of the TOUCH_DETECT line.
Defines the amount of settling time between A / D samples
from 3 to 1024 μsec assuming a 1 MHz clock.
Defines the number of samples averaged per X or Y
reading.
00 - 4 samples
01 - 8 samples
10 - 16 samples
11 - 32 samples
Defines the amount of max to min range deviation in a
sample set allowed before rejection.
000 - +/- 4 LSBs
001 - +/- 8 LSBs
010 - +/- 12 LSBs
011 - +/- 16 LSBs
100 - +/- 24 LSBs
101 - +/- 32 LSBs
110 - +/- 64 LSBs
111 - +/- 128 LSBs
Enables the touch screen scanning state machine.
0 - Disabled.
1 - Enabled.
Defines the amount of settling time between changes to
the touch screen drive conditions from 3 to 1024 μs
assuming a 1 MHz clock.
DS785UM1