TWR-MEM Freescale Semiconductor, TWR-MEM Datasheet
TWR-MEM
Specifications of TWR-MEM
Related parts for TWR-MEM
TWR-MEM Summary of contents
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... Freescale Semiconductor Inc. TWR-MEM User’s Manual Rev. 1.2 ...
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... Elevator Connections ........................................................................................................................................................ 8 4 Jumper Table ........................................................................................................................................... 10 4.1 Mechanical Form Factor ............................................................................................................................................... 11 Revision Date 1.0 Jan, 2010 1.1 Feb 9, 2010 1.2 April 20, 2010 Contents Revision History Changes Initial Release Corrections to SPI Flash, CPLD, and MRAM part numbers Correction to default setting of J16 TWR-MEM User’s Manual Page ...
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... TWR-MEM User’s Manual Page ...
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... Tower System. It can be used with a wide variety of Tower Processor Modules with an SPI and/or external bus interface (EBI). The TWR-MEM features a Serial Flash device, MRAM device, SD™ Card slot, and CompactFlash® slot. A CPLD is used to interface between the external bus interface (memory bus) of the host processor and the CompactFlash slot ...
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... Hardware Features This section provides more details about the features and functionality of the TWR-MEM. 3.1 Power Supply The TWR-MEM is powered from a source in an assembled Tower System via the 3.3V supply on the Primary Elevator Connector. 3.2 Serial Flash An 8 Megabit (1 Mbyte) SPI Serial Flash is connected to the SPI0 interface of the Primary Elevator Connector. There are several configuration options that are controllable by jumper options J4 and J14. Refer to Table 3 “ ...
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... GPIO7 / SD_WP_DET 3.5 CompactFlash The CompactFlash slot on the TWR-MEM can accept Type I (3.3mm thick) CF cards or PC Cards in the CompactFlash form factor. The CompactFlash slot is connected to the External Bus Interface (EBI) on the Primary Elevator Connector. An 8-bit data bus is implemented using EBI_D[7:0]. The necessary address and control signals are routed from the EBI and through a CPLD ...
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... The default CPLD code source and programmable image are available on the TWR-MEM tool support page (start at http://www.freescale.com/tower). The CPLD can be reprogrammed using a JTAG interface cable via the standard JTAG connector, J5. In addition, J6 provides a means to connect GPIO signals from the Primary Elevator Connector to the JTAG signals on the CPLD so that a host controller can “ ...
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... Table 2 provides the pinout for the Primary Elevator Connector. An “X” in the “Used” column indicated that there is a connection from the TWR-MEM to that pin on the Elevator connector. An “X” in the “Jmp” column indicates that a jumper is available that can configure or isolate the connection from the Elevator connector ...
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... X X A71 EBI_AD9 X A72 EBI_AD8 X A73 EBI_AD7 X A74 EBI_AD6 X A75 EBI_AD5 X A76 EBI_AD4 X A77 EBI_AD3 TWR-MEM User’s Manual Usage Used Jmp CPLD GCLK2 X 3.3V Power X Ground X CPLD Reset X X CPLD GCLK3 (FB_CLK) X Ground X CPLD / MRAM X CPLD / MRAM X CPLD / MRAM X CPLD / MRAM ...
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... A79 EBI_AD1 X A80 EBI_AD0 X A81 GND X A82 3.3V Table 3. TWR-MEM Jumper Table Setting *1-2* Connect GCLK3 to Tower CLKOUT1 (B25) 2-3 Connect GCLK3 to Tower CLKOUT0 (A64) 1-2 Pull-up on SD_D3 / SS (SPI Mode Select) 2-3 Pull-down on SD_D3 / SS (SPI Mode Select) *OFF* No pull resistor applied ...
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... J16 CPLD Chip-Select Selection 4.1 Mechanical Form Factor The TWR-MEM is designed for the Freescale Tower System and complies with the mechanical specification as described in Freescale Tower Mechanical Specification. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names © ...