EP9312-CB Cirrus Logic Inc, EP9312-CB Datasheet - Page 794

• 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

28
28-4
GPIO Interface
EP93xx User’s Guide
In order to stop any spurious interrupts that may occur during the programming of the
GPIOxINTTYPEx registers, the following sequence should be observed:
Figure 28-2
1. Disable interrupt by writing to GPIO Interrupt Enable register.
2. Set interrupt type by writing GPIOxINTTYPE1/2 register.
3. Clear interrupt by writing to GPIOxEOI register.
4. Enable interrupt by writing to GPIO Interrupt Enable register.
to PRDATA[7:0]
Figure 28-2. Signal Connections Within the Standard GPIO Port Control Logic
and
Standard GPIO Ports C, D, E, G, and H
Figure 28-3
DDR
DR
TISR
illustrate the signal connections for GPIO and EGPIO.
Copyright 2007 Cirrus Logic
Register
Read
Select
(Ports C, D, E, G, H)
DATA
OE
OE
TESTRDSEL
1
0
TESTINPSEL
0
1
OE[7:0]
DATA[7:0]
EP[7:0]
DS785UM1