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TS68HC901CP8 Folha de dados(PDF) 2 Page - STMicroelectronics |
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TS68HC901CP8 Folha de dados(HTML) 2 Page - STMicroelectronics |
2 / 42 page Figure 1: TS68HC901 Block Diagram INTRODUCTION The TS68HC901 multi-function peripheral (CMFP) is a member of the 68000 peripherals. The CMFP directly interfaces to the 68000 processor via an a- synchronous bus structure. Both vectored and pol- led interrupt schemes are supported, with the CMFP providing unique vector number generation for each of its 16 interrupt sources. Additionally, handshake lines are provided to facilitate DMAC interfacing. Re- fer to block diagram of the TS68HC901. The TS68HC901 performs many of the functions common to most microprocessor-based systems. The resources available to the user include: . Eight Individually Programmable I/O Pins with In- terrupt Capability . 16-Source Interrupt Controller with Individual Source Enabling and Masking . Four Timers, Two of which are Multi-Mode Ti- mers . Timers may be used as Baud Rate Generators for the Serial Channel . Single-Channel Full-Duplex Universal Synchro- nous / Asynchronous Receiver-Transmitter (U- SART) that Supports Asynchronous and with the Addition of a Polynomial Generator Checker Supports Byte Synchronous Formats By incorporating multiple functions within the CMFP, the system designer retains flexibility while minimi- zing device count. From a programmer’s point of view, the versatility of the CMFP may be attributed to its register set. The registers are well organized and allow the CMFP to be easily tailored to a variety of applications. All of the 24 registers are also directly addressable which simplifies programming. The register map is shown in Figure 2. ® TS68HC901 2/42 |
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