f-ram memory module read me frst nonvolatile f-ram memory module (twr-fram) compatible with the freescale tower system
get to know the twr-fram tower system 4-mb parallel f-ram 1-mb spi serial f-ram battery clip (3v battery included) 256-kb i 2 c serial f-ram 256-kb l 2 c tcxo/ processor companion 256-kb i 2 c rtc/ processor companion 256-kb spi rtc/ processor companion requires use with tower system processor module and elevator modules (twr-elev) - sold separately 8-bit nonvolatile gpio state saver primary (functional) connections
how to build your twr-fram download software from www. ramtron . com/go/ twr-fram step 1 download and install software from www. ramtron .com/go/ twr-fram . download quick start guide and supporting fles. step 2 install 3v lithium battery on the twr-fram board. the clip is rigid; please use care when installing the battery. step 3 locate the elevator modules (sold separately), identifed by the four card-edge connections. step 4 identify each elevator module as either primary elevator (white connections) or secondary elevator (black connections). step 5 plug primary connections side of the twr-fram board to the primary elevator. place the twr-fram in top position of the elevator (see inset photo). this provides easy access to the jumper pins. step 6 identify the primary and secondary card edges of the processor module (twr-k53n512 or similar device) and any additional modules you add to your tower system. step 7 plug the primary card edge of each module into the primary (functional) elevator. step 8 place the secondary elevator module onto the secondary card edges. step 9 follow instructions in the quick start guide. 3 3 3 3 3 3 3 3 3 read me frst
twr-fram jumper options tower system jumper option type setting description j1 dspi voltage 4-pin 1-2 dspi voltage 1.6v 2-3 dspi voltage 3.0v *3-4* dspi voltage 1.8v j2 vtwr voltage 4-pin 1-2 vtwr voltage 5v *3-4* vtwr voltage 3.3v j32 fm33256b cs 3-pin *2-3* connects pin to spi cs 1-2 disconnects pin to spi cs j38 FM25V10 cs 3-pin 1-2 connects pin to spi cs *2-3* disconnects pin to spi cs j8 spi sck 6-pin 1-2 connect to pin b7 *2-3* connect to pin b48 4-5 connect to pin b58 j10 spi cs 6-pin 1-2 connect to pin b9 *2-3* connect to pin b46 4-5 connect to pin b47 5-6 connect to pin b55 j4 spi miso 6-pin 1-2 connect to pin b11 *2-3* connect to pin b44 4-5 connect to pin b56 123 654 1 2 4 3 123 6 - pin jumper 4 - pin jumper 3 - pin jumper 123 654 1 2 4 3 123 6 - pin jumper 4 - pin jumper 3 - pin jumper 123 654 1 2 4 3 123 6 - pin jumper 4 - pin jumper 3 - pin jumper the following tables show all jumper options available. the *default* installed jumper settings are shown in the bold with asterisks. the jumper pin positions are shown below:
jumper option type setting description j1 dspi voltage 4-pin 1-2 dspi voltage 1.6v 2-3 dspi voltage 3.0v *3-4* dspi voltage 1.8v j2 vtwr voltage 4-pin 1-2 vtwr voltage 5v *3-4* vtwr voltage 3.3v j32 fm33256b cs 3-pin *2-3* connects pin to spi cs 1-2 disconnects pin to spi cs j38 FM25V10 cs 3-pin 1-2 connects pin to spi cs *2-3* disconnects pin to spi cs j8 spi sck 6-pin 1-2 connect to pin b7 *2-3* connect to pin b48 4-5 connect to pin b58 j10 spi cs 6-pin 1-2 connect to pin b9 *2-3* connect to pin b46 4-5 connect to pin b47 5-6 connect to pin b55 j4 spi miso 6-pin 1-2 connect to pin b11 *2-3* connect to pin b44 4-5 connect to pin b56 jumper option type setting description j7 spi mosi 6-pin 1-2 connect to pin b10 *2-3* connect to pin b45 4-5 connect to pin b57 j9 dspi clk 6-pin 1-2 connect to pin b7 *2-3* connect to pin b48 4-5 connect to pin b58 j11 dspi cs 6-pin 1-2 connect to pin b9 *2-3* connect to pin b46 4-5 connect to pin b47 5-6 connect to pin b55 j5 dspi d1 6-pin 1-2 connect to pin b11 *2-3* connect to pin b44 4-5 connect to pin b56 j6 dspi d0 6-pin 1-2 connect to pin b10 *2-3* connect to pin b45 4-5 connect to pin b57 j3 dspi pwr 4-pin 1-2 /shdn dspi via pin b22 *3-4* /shdn dspi via pin a35 (continued on next page) read me frst
tower system jumper option type setting description j12 i2c scl 6-pin 1-2 connect to pin a7 *2-3* connect to pin b50 4-5 connect to pin b57 j13 i2c sda 6-pin 1-2 connect to pin a8 *2-3* connect to pin b51 4-5 connect to pin b56 j14 interrupt 6-pin 1-2 connect to pin b58 *2-3* connect to pin b56 4-5 connect to pin b62 j15 reset 6-pin 1-2 connect to pin a62 *2-3* connect to pin a47 4-5 connect to pin a63 j16 state saver enable 3-pin *1-2* connects en pin to b35 2-3 connects en pin to gnd j18 fm31256 pfo 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j17 fm31256 reset 3-pin 1-2 connects to reset jumper *2-3* disconnects pin from reset jumper j26 fm31t378 pfo 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j23 fm31t378 reset 3-pin 1-2 connects to reset jumper *2-3* disconnects pin from reset jumper twr-fram jumper options (continued from previous page)
jumper option type setting description j25 fm31t378 fout 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j24 fm31t378 int 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j33 fm33256b acs 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j36 fm33256b pfo 3-pin 1-2 connects to interrupt jumper *2-3* disconnects pin from interrupt jumper j37 fm33256b reset 3-pin 1-2 connects to reset jumper *2-3* disconnects pin from reset jumper j46 fm22l16 select 3-pin *1-2* enables 138 decoder to drive chip enables to fm22l16 devices 2-3 disables 138 decoder from driving chip enables to fm22l16 devices part number quantity component fm22l16 2 4-mb parallel f-ram (expandable to 8-mb) fm1106 4 8-bit non-volatile gpio state saver FM25V10 1 1-mb spi serial fram fm24w256 1 256-kb i2c serial fram fm31t378 1 256-kb i2c tcxo and processor companion fm31256 1 256-kb i2c rtc/processor companion fm33256b 1 256-kb spi rtc/processor companion twr-fram features read me frst
tower system learn more for more information about the twr-fram module, visit www. ramtron .com/go/ twr-fram . additional information about the freescale tower system is available from www.freescale.com/tower. freescale and the freescale logo are trademarks of freescale semiconductor, inc., reg. u.s. pat. & tm. off. all other product or service names are the property of their respective owners. ? 2012 freescale semiconductor, inc. doc number: twr_fram_read_me / rev. 09/12
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