TWR-MEM Freescale Semiconductor, TWR-MEM Datasheet - Page 4

• Manufacturer Part Number: TWR-MEM
• Description: MEMORY MODULE FOR TWR SYSTEM
• Manufacturer: Freescale Semiconductor

Specifications of TWR-MEM

• Accessory Type: Memory Extension Card
• Product: Microcontroller Modules
• Data Bus Width: 8 bit
• Interface Type: JTAG, SPI
• Flash: 1 MB
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1, Coldfire V2, Coldfire V3
• Silicon Core Number: MCF51, MCF52, MCF53
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TWR-MEM Jumper Options
The following is a list of all the jumper options. The *default* installed jumper settings are shown in bold
with asterisks.
TOWER SYSTEM
Jumper
J10
J11
J1
J2
J3
J4
J6
JTAG/GPIO Connections
CPLD GCLK3 Selection
Configuration Options
MRAM Chip-Select
CPLD Flexbus CS0
SD Card SPI Mode
SD Card SPI Mode
Select Pull Option
Chip-Select
Serial Flash
Isolation
Isolation
Option
Setting
*OFF*
*1-2*
*1-2*
*1-2*
*ON*
*ON*
OFF
OFF
2-3
1-2
2-3
2-3
2-3
5-6
1-2
3-4
5-6
7-8
Connect GCLK3 to Tower CLKOUT1 (B25)
Connect GCLK3 to Tower CLKOUT0 (A64)
Pull-up on SD Card DAT3/SS signal (SPI Mode Select)
Pull-down on SD Card DAT3/SS signal (SPI Mode Select)
No pull resistor applied
Connect SD Card DAT3/SS signal to SPI1_CS0 (B9)
Connect SD Card DAT3/SS signal to SPI1_CS1 (B8)
Connect Serial Flash Chip-Select to Tower SPI
Chip-Select
Enable Serial Flash Write Protect
Connect Serial Flash HOLD signal to Tower GPIO5 (B52)
Connect GPIO8 (A10) to CPLD JTAG TMS signal
Connect GPIO9 (A9) to CPLD JTAG TDO signal
Connect GPIO1 (B21) to CPLD JTAG TDI signal
Connect GPIO3 (B23) to CPLD JTAG TCK signal
Connect Flexbus CS0 to MRAM Chip-Select
Disconnect Flexbus CS0 from MRAM Chip-Select
Connect Flexbus CS0 to CPLD pin 48
Disconnect Flexbus CS0 from CPLD
Description