at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 40

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

10.4
10.4.1
10.4.2
10.4.3
10.4.4
10.4.5
10.4.6
10.4.7
10.4.8
40
System Resource Multiplexing
AT91SAM9263 Preliminary
LCD Controller
ETM
EBI1
SSC
USART
NAND Flash
CompactFlash
SPI0 and MCI Interface
™
The LCD Controller can interface with several LCD panels. It supports 4 bits per pixel (bpp), 8
bpp or 16 bpp without limitation. Interfacing 24 bpp TFT panels prevents using the Ethernet
MAC. 16 bpp TFT panels are interfaced through peripheral B functions, as color data is output
on LCDD3 to LCDD7, LCDD11 to LCDD15 and LCDD19 to LCDD23. Intensity bit is output on
LCDD10. Using the peripheral B does not prevent using MAC lines. 16 bpp STN panels are
interfaced through peripheral A and color data is output on LCDD0 to LCDD15, thus MAC lines
can be used on peripheral B.
Mapping the LCD signals on peripheral A and peripheral B makes is possible to use 24 bpp TFT
panels in 24 bits (peripheral A) or 16 bits (peripheral B) by reprogramming the PIO controller and
thus without hardware modification.
Using the ETM prevents the use of the EBI0 in 32-bit mode. Only 16-bit mode (EBI0_D0 to
EBI0_D15) is available, makes EBI0 unable to interface CompactFlash and NandFlash cards,
reduces EBI0’s address bus width which makes it unable to address memory ranges bigger than
0x7FFFFF and finally it makes impossible to use EBI0_NCS2.
Using the following features prevents using EBI1 in 32-bit mode:
Using SSC0 prevents using the AC97 Controller and Two-wire Interface.
Using SSC1 prevents using DMA Request 1, PWM0, PWM1, LCDCC and PCK1.
Using USART2 prevents using EBI0’s NWAIT signal, Chip Select 4 and CompactFlash Chip
Enable 2.
Using USART1 prevents using EBI0’s Chip Select 5 and CompactFlash Chip Enable1.
Using the NAND Flash interface on EBI1 prevents using Ethernet MAC.
Using the CompactFlash interface prevents using NCS4 and/or NCS5 to access other parallel
devices.
SPI0 signals and MCI0 signals are multiplexed, as the DataFlash Card is hardware-compatible
with the SDCard. Only one can be used at a time.
• the second slots of MCI0 and/or MCI1
• USART0
• DMA request 0 (DMARQ0)
• Ethernet 10/100 MAC
6249D–ATARM–20-Dec-07