CC-ACC-MMK-2443 Digi International, CC-ACC-MMK-2443 Datasheet - Page 38

• Manufacturer Part Number: CC-ACC-MMK-2443
• Description: MCU, MPU & DSP Development Tools CC9M 2443 Multimedia App Kit
• Manufacturer: Digi International

Specifications of CC-ACC-MMK-2443

• Processor To Be Evaluated: S3C2443
• Data Bus Width: 32 bit
• Interface Type: UART
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IIS-Bus interface
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C h a p t e r 1
ConnectCore 9M 2443 Hardware Reference
normal 16-bit interval timer to request interrupt service. The watchdog timer
generates the reset signal for 128 PCLK cycles.
Features:
The prescaler value and the frequency division factor are specified in the watchdog
timer control (WTCON) register. Valid prescaler values range from 0 to 28-1. The
frequency division factor can be selected as 16, 32, 64, or 128.
Use the following equation to calculate the watchdog timer clock frequency and the
duration of each timer clock cycle:
t_watchdog = 1/( PCLK / (Prescaler value + 1) / Division_factor )
IIS (Inter-IC Sound) interface transmits or receives sound data from or to external
stereo audio code cs. For transmit and receive data, two 32x16 FIFOs (First-In-First-
Out) data structures are included and DMA transfer mode for transmitting or
receiving samples can be supported. IIS-specific clock can be supplied from internal
system clock controller through IIS clock divider or direct clock source.
Features:
16-bit Watchdog Timer
Interrupt request or system reset at time-out
1-ch IIS-bus for audio interface with DMA-based operation
Serial, 8-/16-bit per channel data transfers
128 Bytes (64-Byte + 64-Byte) FIFO for Tx/Rx
Supports two IIS formats (MSB-justified or LSB-justified data format)