EP9312-CB Cirrus Logic Inc, EP9312-CB Datasheet - Page 796

• 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
28-6
GPIO Interface
EP93xx User’s Guide
28.1.4 GPIO Pin Map
All GPIO signals are mapped to device pins. The Syscon DeviceCfg register contains four
bits that control mapping of the GPIO Ports to device pins: GonK, EonIDE, GonIDE, and
HonIDE.
to EP93xx pins depending on these control signals.
1. GRLED is the Green LED pin.
2. RDLED is the Red LED pin.
3. EECLK is the EEPROM clock pin.
Table
1. GRLED is the Green LED pin.
2. RDLED is the Red LED pin.
3. EECLK is the EEPROM clock pin.
4. EEDAT is the EEPROM data pin.
EGPIO[13:8]
EGPIO[7:0]
EGPIO[15]
ROW[7:0]
COL[7:0]6
GRLED
RDLED
EECLK
EEDAT
Name
28-1,
Pin
Table 28-1. EP9301 and EP9302 GPIO Port to Pin Map
3
4
1
2
5
Table
EGPIO[15:8]
Pin Name
EGPIO[7:0]
Table 28-2. EP9307 GPIO Port to Pin Map
GRLED
RDLED
EECLK
EEDAT
28-2,
Copyright 2007 Cirrus Logic
2
3
4
1
Table
Function
ROW[7:0]
28-3, and
COL[7:0]
Default
Port E0
Port E1
Port G0
Port G1
Port A
Port B
Port B
Table 28-4
Default Function
Port G0
Port G1
Port E0
Port E1
Port A
Port B
show how the GPIO ports map
Function in
Port G0
Port G1
Port E0
Port E1
GonK
Mode
Port A
Port B
Port B
Port C
Port D
DS785UM1