MC72000 Freescale Semiconductor, MC72000 Datasheet - Page 143

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

10.8.2 UART Interface Hardware
The UART driver uses the following signals:
However, the interface can be configured to be a 2, 4 or 6 wire interface. For more details, see document
MC71000/MC72000 Wake-Up, Reset, and Host Clock Request Sequences Application Note (document
number AN2340/D).
10.8.3 UART Driver
The UART driver is highly dependent on the HW and the operating system of the host system. However, it
must conform to the following rules:
10.8.4 Parser/Router
There are three possible ways to implement the file system. Each has great impact on the way the Parser /
Router part has to be implemented, as well as cost and hardware. For details, see the following subsections.
10.8.4.1 General File System on Host
This saves the EEPROM and can use an existing file system on the host.
The router must do the following things:
The parser has to do the following things:
MOTOROLA
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1. Transmit and receive at 9600Baud, 8Bit, 1 StopBit, NoParity.
2. Ability to change Baudrate, if needed, in this application.
3. Support handshake on RTS/CTS lines, if needed, in this application. Refer to MC71000/
4. Support sleepmode, if needed, in this application. Refer to MC71000/MC72000 Wake-Up,
5. A delay of more than 300 mS between characters in a command results in a “Hardware
1. Sort all commands/events/ACL/SCO and send it to correct receiver.
2. Send host connect after reset.
3. Change baud rate after host connect, if needed.
4. Resend telegrams on “Hardware error” event received, if needed.
5. Keep track of number of pending commands.
1. Translate received file system events into local file system calls.
2. Send correct command, with data, on received file system events.
GND for common ground reference point.
TxD/RxD for serial data.
RTS/CTS lines as normal HW-handshake (Optional).
DTR/DSR lines as Sleep mode request / grand (Optional).
MC72000 Wake-Up, Reset, and Host Clock Request Sequences Application Note
(document number AN2340/D) for more details.
Reset, and Host Clock Request Sequences Application Note (document number AN2340/
D) for more details.
Error” event returned, telling to retransmit the last telegram. This will impact general speed
and should be avoided.
Freescale Semiconductor, Inc.
For More Information On This Product,
MC72000 Advance Information Data Sheet
Go to: www.freescale.com
Preliminary
Applications Information
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