LG MG810c Service Manual page 21

3. H/W Circuit Description
The enhanced computing performances mainly rely on :
[ MCU Sub-system]
- 5.5Mbit Internal SRAM (with 0.5Mb shared with DSP)
- DMA to internal SRAM
- Page Mode Memory Interface
- Sizable 6 Chip-Select
- 2 Generic Purpose external interrupts
- Patch Unit
[ DSP Sub-system]
- 0.5Mb Program/Data Memory Extension shared with MCU
The new connectivity peripherals are :
- LCD controller parallel physical interface(6800 & 8080 protocol)
- USB client(W2FC)
- Multi Media and Secure Digital Card(MMC/SD) interface
- Memory Stick(MS) interface(using exclusive with MMC/SD)
- Audio and Data interface for external Bluetooth Modem connection
- Audio Codec serial interface(I2S)
- Smart Card physical interface (ISO-7816)
- NAND-Flash Interface
- Enhanced Keyboard controller
B. Memory Interface
Calypso-Plus has 6-sizable chip select port and can configure as follow :
Table 3. Configuration of addressable ranges
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