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AM6421 Datasheet(PDF) 89 Page - Texas Instruments |
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AM6421 Datasheet(HTML) 89 Page - Texas Instruments |
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89 / 237 page  6.3.23.2 Clock 6.3.23.2.1 MCU Domain Table 6-72. MCU Clock Signal Descriptions SIGNAL NAME PIN TYPE DESCRIPTION ALV MCU_OSC0_XI I High frequency oscillator input C21 MCU_OSC0_XO O High frequency oscillator output B20 6.3.23.3 System 6.3.23.3.1 MAIN Domain Table 6-73. System Signal Descriptions SIGNAL NAME PIN TYPE DESCRIPTION ALV CLKOUT0 O RMII Clock Output (50 MHz). This pin is used for clock source to the external PHY and must be routed back to the RMII_REF_CLK pin for proper device operation. A19, U13 EXTINTn I External Interrupt C19 EXT_REFCLK1 I External clock input to Main Domain, routed to Timer clock muxes as one of the selectable input clock sources for Timer/WDT modules, or as reference clock to MAIN_PLL2 (PER1 PLL) A19 GPMC0_FCLK_MUX O GPMC functional clock output selected through a mux logic R17 OBSCLK0 O Observation clock output for test and debug purposes only D17 PORz_OUT O Main Domain POR status output E17 RESETSTATz O Main Domain warm reset status output F16 RESET_REQz I Main Domain external warm reset request input E18 SYNC0_OUT O CPTS Time Stamp Generator Bit 0 D18 SYNC1_OUT O CPTS Time Stamp Generator Bit 1 A19 SYNC2_OUT O CPTS Time Stamp Generator Bit 2 A17 SYNC3_OUT O CPTS Time Stamp Generator Bit 3 B17 SYSCLKOUT0 O SYSCLK0 output from Main PLL controller (divided by 6) for test and debug purposes only C17 6.3.23.3.2 MCU Domain Table 6-74. MCU System Signal Descriptions SIGNAL NAME PIN TYPE DESCRIPTION ALV MCU_EXT_REFCLK0 I External system clock input B7 MCU_OBSCLK0 O Observation clock output for test and debug purposes only C6, E10 MCU_PORz I MCU Domain cold reset B21 MCU_RESETSTATz O MCU Domain warm reset status output B13 MCU_RESETz I MCU Domain warm reset B12 MCU_SAFETY_ERRORn IO Error signal output from MCU Domain ESM A20 MCU_SYSCLKOUT0 O MCU Domain system clock output for test and debug purposes only C6 6.3.23.4 VMON Table 6-75. VMON Signal Description SIGNAL NAME PIN TYPE DESCRIPTION ALV VMON_1P8_MCU PWR Voltage monitor for 1.8 V MCU power supply K16 www.ti.com AM6442, AM6441, AM6421 AM6412, AM6411 SPRSP56 – JANUARY 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 89 Product Folder Links: AM6442 AM6441 AM6421 AM6412 AM6411 |
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