TWR-12311-KIT-NA Freescale Semiconductor, TWR-12311-KIT-NA Datasheet - Page 22

• Manufacturer Part Number: TWR-12311-KIT-NA
• Description: Development Boards & Kits - Other Processors Tower Kit for NA
• Manufacturer: Freescale Semiconductor

Specifications of TWR-12311-KIT-NA

• Rohs: yes
• Product: Development Systems
• Tool Is For Evaluation Of: MC12311
• Core: HCS08
• Interface Type: SPI, USB
• Operating Supply Voltage: 3.5 V to 10 V
• Data Bus Width: 8 bit
• For Use With: MC12311

12311-MRB
Header J13 provides means to disable different sub-circuits or measure current and connections are
described in
designated jumper.
3-10
1
- Not Using LDO
External Source
External Source
Source V_BRD
The MC12311 can run as low as 1.8 V
- Using LDO
Mode
Designation
Supply
V_BRD
V_LED
V_RF
V_IC
Table
2.7 - 3.6 V
2.7 - 3.6 V
3.5 - 16 V
Voltage
Range
3-3. Current measurements can be made by inserting a current meter in place of a
Header
Pins
1
1 - 2
3 - 4
5 - 6
7 - 8
12311 Development Hardware Reference Manual, Rev. 0.0
Connected -
Connected -
DC Voltage
DC Voltage
External
Not used
supplies
supplies
Source
Table 3-2. 12311-MRB Power Configurations
Table 3-3. Power Distribution Header J13
J6
Supply voltage to MC12311 -Radio die
Normally always same voltage as V_BRD
Supply voltage connected to IO Connectors J2 and J3 -
Supply voltage to MC12311 -MCU die
Supply voltage to power indicator LED
• Normally jumpered
• Supplies only the MC12311 Radio die
• This supplies J2 and J3 if an external MRB supply is used
• This voltage supplies the MRB if the motherboard is the main power
• This connection is normally always jumpered
• Normally jumpered
• Supplies only the MC12311 MCU die
• Normally always same voltage as V_BRD
• Jumper to use indicator or IR blaster
• Leave open for lowest power
Short Pins 1-2
Short Pins 2-3
Not used - all
Ext Mode
pins open
Select
J9
short other desired
Short Pins 3-4 -
Current Enable
Short pins for all
desired supplies
Short pins for all
desired supplies
supplies
Description
J13
Normal Operation -
The 12311-MRB main supply is
supplied by the motherboard
through the J15 and J14 Headers
External voltage w/regulation -
External voltage w/o regulation -
• Input range is set by the LDO
• 3.3 V is supplied to 12311-MRB;
• J14 and J15 Headers supply
• Input range is set by the onboard
• 2.7 - 3.3 V is supplied to
• J14 and J15 Headers supply
regulator.
do not use motherboard supply
voltage to V_BRD pins when J13,
Pins 3-4 are shorted
circuitry
12311-MRB
voltage to V_BRD pins
Freescale Semiconductor
Description