MC72000 Freescale Semiconductor, MC72000 Datasheet - Page 3

• Manufacturer Part Number: MC72000
• Description: Integrated Bluetooth Radio
• Manufacturer: Freescale Semiconductor

2 System Overview
This section provides a brief description of the system for the MC72000.
A system overview is shown in Figure 1
The main block is the MC72000, which will be described in depth in Section 5, “System Description.”
In addition to the MC72000, there are three other blocks:
2.1 RF Signal Path
The switch for the RX and TX, the bandpass filter, and the antenna are all found in the RF signal path.
2.2 Interfaces
There are four bi-directional interfaces and one reset that only the host can initiate.
2.3 Clocks/Crystals
The MC72000 has two clocks:
MOTOROLA
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Antenna
JTAG Test Interface Controller
32.768 kHz Oscillator for Low Power Operation
Operating Voltage: 1.65 V to 1.95 V
RF signal Path
Interfaces
Reference clocks
The SSI interface is used for audio purposes.
The UART interface is used for all communication to and from the host (for example, HCI
commands).
The SPI is used for communication with the SEEPROM.
The GPIO pins are used for different configurations set by the MC72000.
RF Signal Path
Bandpass
Filter
Figure 1. MC72000 Example Application Block Diagram
Freescale Semiconductor, Inc.
For More Information On This Product,
MC72000 Advance Information Data Sheet
32.768 KHz
12-15 MHz
Switch
Rx/Tx
Go to: www.freescale.com
XTAL
XTAL
Rx
Tx
Preliminary
MC72000
UART Interface
SSI Interface
GPIO
reset
SPI
Application Software
Configuration Data
System Overview
SEEPROM
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