EP9315-CB Cirrus Logic Inc, EP9315-CB Datasheet - Page 666

• Manufacturer Part Number: EP9315-CB
• Description: IC ARM920T MCU 200MHZ 352-PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9315-CB

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, PCMCIA, 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
• Package / Case: 352-BGA
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: EDB9315A-Z
• For Use With: 598-1144 - KIT DEVELOPMENT EP9315 ARM9
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1261

21
21-10
I
EP93xx User’s Guide
21.5.2 Example of Right Justified LRCK format
21.6 Interrupts
2
S Controller
I
size = 32
I
size = 24
2
2
I
size = 16
S
2
S
SDATA
S
SCK
Figure 21-3
case and the MSB is transmitted first. The bit clock rate is 64x so the for the first 16 clock
cycles in each word there is no data as it is right justified in each word frame.
The I
combination (logical OR) of all TX and RX internal interrupts.
The transmitter generates 4 internal interrupts within the I
the status of the 3 individual TX FIFOs. These internal interrupts are as follows:
word
word
word
• TX0 FIFO empty.
• TX1 FIFO empty.
2
S controller generates a single interrupt, I2SINTR to the ARM Core. This interrupt is a
LRCKX
Bitclk
Bitclk
Bitclk
shows the frame format for Right Justified data. The word length is 16 in this
LRCKX LEFT
BCR = 64x, 32 pulses left word
Figure 21-3. Frame Format for Right Justified Data
16 pulses
Figure 21-2. Bit Clock Generation Example
15
24 pulses
..........
..........
32 pulses
Copyright 2007 Cirrus Logic
...............
2 1 0
BCR = 64x, 32 pulses right word
2
16 pulses
S controller. Each of these reflect
24 pulses
LRCKX RIGHT
..........
32 pulses
...............
..........
15
2 1 0
DS785UM1