CC-W9M-NA37-XE Digi International, CC-W9M-NA37-XE Datasheet - Page 37

• Manufacturer Part Number: CC-W9M-NA37-XE
• Description: MOD WI-9M 64MB SDRAM 128MB FLASH
• Manufacturer: Digi International
• Series: -r

Specifications of CC-W9M-NA37-XE

• Module/board Type: Core Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Networking

Common features
Watchdog timer
IIS-Bus interface
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C h a p t e r 1
ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference
The pull-up resistors, belonging to the JTAG interface, are placed on the module.
The LCD controller has a dedicated DMA that supports to fetch the image data from
video buffer located in system memory. Its features also include:
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The S3C2443 watchdog timer is used to resume the controller operation whenever it
is disturbed by malfunctions such as noise and system errors. It can be used as a
normal 16-bit interval timer to request interrupt service. The watchdog timer
generates the reset signal for 128 PCLK cycles.
Features:
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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:
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Dedicated interrupt functions (INT_FrSyn and INT_FiCnt)
The system memory is used as the display memory
Supports Multiple Virtual Display Screen (Supports Hardware
Horizontal/Vertical Scrolling)
Programmable timing control for different display panels
Supports little and big-endian byte ordering, as well as WinCE data formats
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)