EP9312-IB Cirrus Logic Inc, EP9312-IB Datasheet - Page 795

• 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

DS785UM1
28.1.3 Reset
All GPIO registers are initialized on system reset. The data and data direction registers for all
ports (except as noted below) are cleared, configuring them as inputs. Port E[1:0] bits are
used for the LED outputs RDLED and GRLED respectively and are set to drive high. Port
G[3:2] bits are used for SLA[1:0] outputs and are set to drive low. Port G[1:0] bits are used
for EEDAT and EECLK respectively and are set up as inputs. All interrupt control and
debounce registers are cleared.
to PRDATA[7:0]
Figure 28-3. Signal Connections Within the Enhanced GPIO Port Control Logic
Enhanced GPIO Ports A, B, and F
DDR
DR
TISR
DB
INTEN
INTTYPE1
INTTYPE2
Register
Read
Select
DATA
EDGE
Copyright 2007 Cirrus Logic
ENA
POL
OE
OE
OE
(Ports A, B, F)
TESTRDSEL
1
0
INTERRUPT
CONTROL
LOGIC
TESTINPSEL
OE[7:0]
DATA[7:0]
0
1
CLK
IN
EP93xx User’s Guide
EP[7:0]
GPIO Interface
ICLK
28-5
28