DEMO51AC256KIT Freescale Semiconductor, DEMO51AC256KIT Datasheet - Page 14

• Manufacturer Part Number: DEMO51AC256KIT
• Description: KIT DEMO DEMOAC DC9S08A
• Manufacturer: Freescale Semiconductor
• Series: Flexis™r
• Type: MCUr

Specifications of DEMO51AC256KIT

• Contents: *
• Processor To Be Evaluated: HCS08
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51
• Silicon Family Name: Flexis - MCF51AC
• Kit Contents: Board
• Rohs Compliant: Yes
• For Use With/related Products: MCF51AC256
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D E M O A C
The DEMOAC applies the MMA7260Q, 3-axis accelerometer for tilt and motion-sense applica-
tions. The accelerometer supports 4 user selectable sensitivities - 1.5g / 2g / 4g / 6g. The
SLEEP* input allows the device to be placed in a low-power mode. Separate X-, Y-, and Z-
axis readings are routed to the MCU. The X-axis output is routed to two separate inputs on the
target MCU. Low-pass filters remove hi-frequency components on each axis output.
Accelerometer Configuration
Accelerometer sensitivity configuration is controlled manually using option select header JP2.
Figure 6: Accelerometer Sensitivity Select Header
An option header at ACC_OUT allows the user to disconnect the accelerometer output if nec-
essary. The ACC_OUT option header is not installed default configurations and cut-traces
provide default connections
Table 5: ACC_OUT Option Header
GSEL1
GSEL2
SLEEP*
(*) – Default condition
U S E R
Signal
X
X
Y
Z
G U I D E
▪
▪
▪
JP2
PTD0/ADP8/ACMP+
PTB3/SS2*/ADP3
PTB0/MISO2/ADP0
PTB1/MOSI2/ADP1
▪
▪
▪
MCU Input
Enabled
Enabled
Enabled
On
Shunt
14
Disabled (*)
Disabled (*)
Disabled (*)
Off
A P R I L
1 0 ,
2 0 0 8