TWR-MEM Freescale Semiconductor, TWR-MEM Datasheet - Page 8

• 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

3.7 Elevator Connections
The TWR-MEM features two expansion card-edge connectors that interface to Elevator boards in a
Tower System: the Primary and Secondary Elevator connectors. The Primary Elevator connector,
comprised of sides A and B, is utilized by the TWR-MEM, while the Secondary Elevator connector only
makes connections to ground (GND). 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.
B10 SDHC_CMD / SPI1_MOSI SD MOSI / Command
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
Pin
B1
B2
B3
B4
B5
B6
B7
B8
B9
SDHC_D3 / SPI1_CS1_b SD Chip Select / Data3
SDHC_D3 / SPI1_CS0_b SD Chip Select / Data3
SDHC_D0 / SPI1_MISO
SDHC_CLK / SPI1_CLK
GPIO2 / SDHC_D1
ELE_PS_SENSE
GPIO1 / RTS1
ETH_TXCLK
ETH_RXER
ETH_TXEN
ETH_TXER
ETH_TXD3
ETH_TXD2
ETH_TXD1
ETH_TXD0
ETH_COL
CLKOUT1
CLKIN0
Name
GPIO3
DAC1
GND
GND
GND
GND
GND
3.3V
AN7
AN6
AN5
AN4
5V
Ground
3.3V Power
Ground
Ground
SD Clock
SD MISO / Data0
JTAG2
SD Data1
JTAG1
CPLD GCLK3 (FB_CLK)
Ground
Ground
Table 2. TWR-MEM Primary Elevator Connector Pinout
Usage
TWR-MEM Primary Connector
TWR-MEM User’s Manual
Used Jmp Pin
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
A10
A11 GPIO7 / SD_WP_DET SD WP Detect
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A1
A2
A3
A4
A5
A6
A7
A8
A9
GPIO8 / SDHC_D2
GPIO9 / CTS1
ETH_RXCLK
ETH_MDIO
ETH_RXDV
ETH_RXD3
ETH_RXD2
ETH_RXD1
ETH_RXD0
ETH_MDC
SSI_MCLK
ETH_CRS
SSI_BCLK
SSI_RXD
SSI_TXD
SSI_FS
Name
DAC0
SDA0
GND
3.3V
3.3V
GND
GND
SCL0
GND
GND
AN3
AN2
AN1
AN0
5V
Ground
3.3V Power
3.3V Power
Ground
Ground
JTAG3 /
JTAG4 /
Ground
Ground
Usage
Page 8 of 11
Used Jmp
X
X
X
X
X
X
X
X
X
X
X
X
X