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TMS320F28062 Datasheet(PDF) 30 Page - Texas Instruments |
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TMS320F28062 Datasheet(HTML) 30 Page - Texas Instruments |
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30 / 179 page  th(boot-mode)(A) tw(RSL2) INTOSC1 X1/X2 XRS Boot-Mode Pins XCLKOUT I/O Pins Address/Data/ Control (Internal) Boot-ROM Execution Starts User-Code Execution Starts User-Code Dependent User-Code Execution Phase User-Code Dependent User-Code Execution Peripheral/GPIO Function User-Code Dependent GPIO Pins as Input (State Depends on Internal PU/PD) GPIO Pins as Input Peripheral/GPIO Function td(EX) 30 TMS320F28069, TMS320F28068, TMS320F28067, TMS320F28066 TMS320F28065, TMS320F28064, TMS320F28063, TMS320F28062 SPRS698F – NOVEMBER 2010 – REVISED MARCH 2016 www.ti.com Submit Documentation Feedback Product Folder Links: TMS320F28069 TMS320F28068 TMS320F28067 TMS320F28066 TMS320F28065 TMS320F28064 TMS320F28063 TMS320F28062 Specifications Copyright © 2010–2016, Texas Instruments Incorporated Table 5-3. Reset (XRS) Timing Requirements MIN MAX UNIT th(boot-mode) Hold time for boot-mode pins 1000tc(SCO) cycles tw(RSL2) Pulse duration, XRS low on warm reset 32tc(OSCCLK) cycles (1) Dependent on crystal/resonator and board design. Table 5-4. Reset (XRS) Switching Characteristics over recommended operating conditions (unless otherwise noted) PARAMETER MIN TYP MAX UNIT tw(RSL1) Pulse duration, XRS driven by device 600 μs tw(WDRS) Pulse duration, reset pulse generated by watchdog 512tc(OSCCLK) cycles td(EX) Delay time, address/data valid after XRS high 32tc(OSCCLK) cycles tINTOSCST Start up time, internal zero-pin oscillator 3 μs tOSCST (1) On-chip crystal-oscillator start-up time 1 10 ms A. After reset, the Boot ROM code samples BOOT Mode pins. Based on the status of the Boot Mode pin, the boot code branches to destination memory or boot code function. If Boot ROM code executes after power-on conditions (in debugger environment), the Boot code execution time is based on the current SYSCLKOUT speed. The SYSCLKOUT will be based on user environment and could be with or without PLL enabled. Figure 5-6. Warm Reset |
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