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WM8802SCFT 数据表(PDF) 58 Page - Wolfson Microelectronics plc |
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WM8802SCFT 数据表(HTML) 58 Page - Wolfson Microelectronics plc |
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58 / 65 page ![]() WM8802 Product Preview w PP Rev 1.1 April 2004 58 READ REGISTER 2 (GENERAL-PURPOSE I/O INPUT CONTENTS, FS CALCULATION RESULT, FS COUNTER DATA) READ REGISTER OUTPUT CONTENTS REGISTER ADDRESS DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0 CCB address: 0xEB FSC3 FSC2 FSC1 FSC0 GPO3 GPO2 GPO1 GPO0 GPO0 Read data output contents during general-purpose I/O GPO0 input setting 0: GPIO0 input = Low 1: GPIO0 input = High GPO1 Read data output contents during general-purpose I/O GPIO1 input setting 0: GPIO1 input = Low 1: GPIO1 input = High GPO2 Read data output contents during general-purpose I/O GPIO2 input setting 0: GPIO2 input = Low 1: GPIO2 input = High GPO3 Read data output contents during general-purpose I/O GPIO3 input setting 0: GPIO3 input = Low 1: GPIO3 input = High FSC [3:0] Input data fs calculation result "xxxx": See code table. FSC3 FSC2 FSC1 FSC0 TARGET FREQUENCY CALCULATION RANGE (DESIGN VALUE) 0 0 0 0 Out of range −−−− 0 0 0 1 − − 0 0 1 0 − − 0 0 1 1 − − 0 1 0 0 16kHz 15.4k to 16.6kHz 0 1 0 1 22.05kHz 21.2k to 22.9kHz 0 1 1 0 24kHz 23.1k to 24.9kHz 0 1 1 1 32kHz 30.8k to 33.3kHz 1 0 0 0 44.1kHz 42.4k to 45.8kHz 1 0 0 1 48kHz 46.2k to 49.9kHz 1 0 1 0 64kHz 615k to 66.7kHz 1 0 1 1 88.2kHz 85.4k to 91.7kHz 1 1 0 0 96kHz 93.1k to 100.7kHz 1 1 0 1 128kHz 122.9k to 1335kHz 1 1 1 0 176.4kHz 170.7k to 180.7kHz 1 1 1 1 192kHz 186.2k to 198.1kHz Table 21 Input fs Calculation Result Code Table (Ta = 25°C, AVDD = DVDD = 3.3 V) |
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