MC72000 Freescale Semiconductor, MC72000 Datasheet - Page 49

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

7 Hardware Functional Description
These hardware blocks will be described in the following sections:
7.1 Clock Reset Module (CRM)
The Clock Reset Module (CRM) is a dedicated module to handle all clock and reset functions in the
MC72000. The CRM assures that different clock and reset signals are stable and synchronized before they
are fed to the internal logic in the MC72000.
7.1.1 Features
The CRM has the following features:
MOTOROLA
RTXEN
EPADAC (R9/7 = 1)
GPO (Antenna Switch)
EPAEN (R11/6 = 1)
Internal PA Enable
Power Ramp
Transmit Sync Delay
(R8/15-8 = 184
•
•
•
•
•
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Clock reset module (CRM)
UART Interface
SPI Interface
SSI interface
Controls system reset
Sleep mode management
— Timer for recording sleep mode active period and initiating wake up
10
)
106 µs
Figure 30. Ramp Generator (Transmit Cycle) Timing Diagram
Freescale Semiconductor, Inc.
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MC72000 Advance Information Data Sheet
184
44 µs
10
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1.0 µs
Preliminary
4.0 µs
5.0 µs
20 µs
Hardware Functional Description
15 µs
15
µs
20 µs
1.0
µs
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