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68HC05CL48 数据表(PDF) 85 Page - Motorola, Inc |
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68HC05CL48 数据表(HTML) 85 Page - Motorola, Inc |
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85 / 145 page  June 11, 1997 GENERAL RELEASE SPECIFICATION MC68HC05CL48 CALLER-ID MOTOROLA REV 2.0 11-1 SECTION 11 CALLER-ID The Caller ID module demodulates the Bell 202 and CCITT V.23 1200 baud FSK asynchronous data. This module consists of four major building blocks - FSK demodulator, Carrier Detect, Ring Detect and the Power Management circuit. The block diagram of this module is shown in Figure 11-1. Figure 11-1. Caller ID Block Diagram Tip Ring + – Ring 202 Demod Detect Circuit BPF Valid Data Detect Power Management Carrier Detect Circuit Carrier Detect Interface Ring Detect Interface Demod Data Control/Status Register 1 Control/Status Register 2 Serial Data Select Interrupt Circuit MCU Data Bus SDSL CPU Interrupt Ring Det 1 Ring Det 2 Ring Time VAG Power CTL from CPU Control/Status Register 3 |
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