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參數(shù)資料
| 型號(hào)： | PCF87852 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Bluetooth baseband controller |
| 中文描述： | 藍(lán)牙基帶控制器 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 73K |
| 代理商： | PCF87852 |
Philips Semiconductors
PCF87852
Bluetooth baseband controller
Preliminary data
Rev. 01 — 23 April 2004
7 of 12
9397 750 12161
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
7.
Functional description
The PCF87852 is designed to be used as a low-cost, low-power radio-based cable
replacement, or wireless link. This link will be the basis for PCs, telephones, PDAs
headsets and peripherals to communicate together on an ad-hoc basis. It is designed
to handle the Bluetooth specification.
The PCF87852 is intended to combine the Bluetooth protocol stack, link controller,
link manager, HCI Firmware and radio of the Bluetooth system specification in one IC
with embedded software.
Figure 2
shows a typical example of the PCF87852 in its
environment. Together with few external components and an antenna it forms a
Bluetooth system. In most cases this system will be attached to a host, for example a
GSM baseband controller or a PC processor.
The industry standard ARM7TDMI microcontroller with low power consumption per
MHz is integrated. There is a ROM memory and a static RAM on-chip. There are no
provisions for external controllers to directly access on-chip data memories.
Communication with an external host, for example a PC, GSM or PDA, is handled via
the HCI.
The PCF87852 is able to run the complete Bluetooth application up to HCI.
A number of industry standard interfaces such as IOM/PCM, I
2
C-bus, and UART are
supported by on-chip hardware to act as possible host interfaces.
The Bluetooth link controller consists of a number of functional blocks that operate
under control of the embedded microcontroller. The microcontroller has access to
these blocks via the AMBA System Bus (ASB) and VLSI Peripheral Bus (VPB).
Figure 1
shows the various blocks and their interconnections.
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