MC72000 Freescale Semiconductor, MC72000 Datasheet - Page 142
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MC72000
Manufacturer Part Number
MC72000
Description
Integrated Bluetooth Radio
Manufacturer
Freescale Semiconductor
Datasheet
1.MC72000.pdf
(157 pages)
- Current page: 142 of 157
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Applications Information
10.8 File System
Three different approaches are possible with the Motorola Bluetooth file system. The first two approaches
enable a solution without external EEPROM. All approaches are described in detail in the application
notes: Motorola Bluetooth File System, Host-based General Application Note (document number
94001481003), Motorola Bluetooth File System, Host Based One File Application Note (document number
94001481004) and Motorola Bluetooth File System, Embedded File System Application Note (document
number 94001481002).
The host interface is the normal serial UART interface, where all communication from application, upper
stack, and filesystem passes through (see Figure 90).
Refer to MC71000/MC72000 Wake-Up, Reset, and Host Clock Request Sequences Application Note
(document number AN2340/D) for a thorough explanation.
10.8.1 UART Interface Telegrams
The serial UART interface is transporting all types of HCI telegrams. This, in short, is the following:
142
•
•
•
•
HCI ACL: Data transport — typically a file from another unit.
HCI SCO: Audio transport — typically sound from another unit.
HCI Commands: Sent to the MC72000, ordering it to do something. Will always result in one or
more HCI Events returned.
HCI Events: Are sent from MC72000 to the host and are a direct response to an HCI command or
a spontaneous reaction to something happening in the MC72000.
Freescale Semiconductor, Inc.
For More Information On This Product,
MC72000 Advance Information Data Sheet
Data access
Filesystem
HOST
Figure 90. File System Overview
Go to: www.freescale.com
Preliminary
Upper stack
Application
MC72000
Parser /
Router
Driver
UART
HCI commands/
UART Interface
Events
OS
MOTOROLA
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