TWR-MEM Freescale Semiconductor, TWR-MEM Datasheet - Page 10

• 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

4 Jumper Table
There are several jumpers provided for isolation, configuration, and feature selection. Refer to the
following table for details. The default installed jumper settings are shown in *bold*.
B78
B79
B80
B81
B82
Pin
Jumper
J10
J11
J12
J13
J1
J2
J3
J4
J6
EBI_D2
EBI_D1
EBI_D0
Name
GND
3.3V
SD Card SPI Mode Select Pull Option
Serial Flash Configuration Options
SD Card Configuration Options
SD Card SPI Mode Chip-Select
SD Card Write Protect Detect
MRAM Chip-Select Isolation
CPLD Flexbus CS0 Isolation
JTAG / GPIO Connections
CPLD GCLK3 Selection
Isolation
Option
CPLD / MRAM
CPLD / MRAM
CPLD / MRAM
Ground
3.3V Power
Usage
Table 3. TWR-MEM Jumper Table
TWR-MEM Primary Connector
TWR-MEM User’s Manual
Setting
Used Jmp Pin
*OFF*
*1-2*
*1-2*
*1-2*
*ON*
*ON*
*1-2*
11-12
*ON*
9-10
OFF
OFF
OFF
2-3
1-2
2-3
2-3
2-3
5-6
1-2
3-4
5-6
7-8
3-4
5-6
7-8
X
X
X
X
X
Connect GCLK3 to Tower CLKOUT1 (B25)
Connect GCLK3 to Tower CLKOUT0 (A64)
Pull-up on SD_D3 / SS (SPI Mode Select)
Pull-down on SD_D3 / SS (SPI Mode Select)
No pull resistor applied
Connect SD_D3 / SS to SPI1_CS0 (B9)
Connect SD_D3 / SS to SPI1_CS1 (B8)
Connect Serial Flash Chip-Select to SPI CS selected by J14
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 EBI_CS0 to MRAM Chip-Select
Disconnect EBI_CS0 from MRAM Chip-Select
Connect EBI_CS0 to CPLD pin 48
Disconnect EBI_CS0 from CPLD
Connect SD Card Detect to IRQH (B55)
Connect SD Card Detect to IRQA (B62)
Connect SD_D1 to GPIO2 (B22)
Connect SD_D2 to GPIO8 (A10)
Apply pull-up to SD_CMD/MOSI
Apply pull-up to SD_D0/MISO
Connect SD Card Write Protect Detect to Tower GPIO7 (A11)
Disconnect SD Card Write Protect Detect from Tower
A78
A79
A80
A81
A82
EBI_AD2
EBI_AD1
EBI_AD0
Name
GND
3.3V
Description
CPLD / MRAM
CPLD / MRAM
CPLD / MRAM
Ground
3.3V Power
Usage
Page 10 of 11
Used Jmp
X
X
X
X
X