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PDF DIMM-RM9200 Data sheet ( Hoja de datos )
| Número de pieza | DIMM-RM9200 | |
| Descripción | Hardware Manual | |
| Fabricantes | Nemonos | |
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DIMM-RM9200
Hardware Manual
Document Revision V1.06
1 page  
DIMM-RM9200
3 Tables
Module Pinout
USART0 Port Pinout
USART1 Port Pinout
USART2 Port Pinout
USART3 Port Pinout
SPI Port Pinout
www.DataSheet4U.cMomCI Port Pinout
TWI Port Pinout
SSC0 Port Pinout
SSC1 Port Pinout
DIMM Socket Selection
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15
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16
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DIMM-RM9200 Module Specification
5
5 Page 
DIMM-RM9200
5.5.2 Power supply
5.5.2.1 External power supply
The DIMM-RM9200 requires an external power supply. You have to power the DIMM-RM9200 with a
3V3 / 0,5 A external power supply, connected to the 3V3 pins on the SO-DIMM connector. When using
an external power supply, it is strongly advised to place a low ESR capacitor on the carrier board close to
the 3V3 input to reduce interference.
5.5.2.2 On board power supply
www.DataSheet4U.cTohme core supply voltage for the AT91RM9200 is generated on board and is available for reference on the
1V8 pin of the SO-DIMM connector. The power consumption of external components, if any, must be
limited to 50mW.
5.5.3 Memory Layout
Equipped with either 64Mbit, 128 Mbit or 256 Mbit Intel Strata Flash as well as with two SDRAMs of each
128 Mbit or 256 Mbit the DIMM-RM9200 realizes a total of 8, 16 or 32 Mbyte Flash and 32 or 64 Mbyte
SDRAM. Standard variants are 8MByte / 32 MByte Flash / SDRAM respectively 32 / 64 MByte Flash /
SDRAM. Using A25 for the chip-internally not bonded A24 address line it is possible to address 32 MByte
of Flash-Memory (for the missing A24 problem please take a look in the errata for the ATMEL
AT91RM9200).
5.5.3.1 Flash (chip select NCS0)
The flash memory is accessed 16 bits wide with NCS0. The resulting address range for the two standard
options are:
16 MByte: 0x1000 0000 - 0x10FF FFFF
(JL28F128J3A)
32 MByte: 0x1000 0000 - 0x10FF FFFF 1.segment (16 Mbyte) (JL28F256J3C/PF48F4000P0Z)
0x1100 0000 - 0x11FF FFFF mirror of 1. segment (16 Mbyte)
0x1200 0000 - 0x12FF FFFF 2. segment (16 Mbyte)
The gap in the flash memory area for the 32MByte device can be avoided by addressing the flash starting at
offset 0x1100 0000. This results in the following memory layout:
32 MByte: 0x1100 0000 - 0x11FF FFFF 1.segment (16 Mbyte) (JL28F256J3C/PF48F4000P0Z)
0x1200 0000 - 0x12FF FFFF 2. segment (16 Mbyte)
5.5.3.2 SDRAM (chip select NCS1)
The SDRAM is accessed with 32 bit data bus width at NCS1. This results in the following address range for
the standard memory options:
32 MByte: 0x2000 0000 - 0x21FF FFFF
(MT48LC8M16A2)
64 MByte: 0x2000 0000 - 0x23FF FFFF
(MT48LC16M16A2)
5.5.3.3 Serial data flash (chip select NPCS0)
An optional serial data flash of type AT25DB021B will be accessed using the SPI chip select NPCS0. The
data flash can be used for storage of configuration data or a bootloader. Booting U-Boot with TFTP feature
from the data flash in a network environment, the Strata Flash can be omitted further reducing the system
costs.
DIMM-RM9200 Module Specification
11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet DIMM-RM9200.PDF ] | |
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