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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS570LS0332PZ датащи(PDF) 38 Page - Texas Instruments |
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TMS570LS0332PZ датащи(HTML) 38 Page - Texas Instruments |
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38 / 110 page  TMS570LS0432, TMS570LS0332 SPNS186B – OCTOBER 2012 – REVISED JUNE 2015 www.ti.com 6.5.2 Clock Domains 6.5.2.1 Clock Domain Descriptions Table 6-12 lists the device clock domains and their default clock sources. The table also shows the system module control register that is used to select an available clock source for each clock domain. Table 6-12. Clock Domain Descriptions CLOCK SOURCE CLOCK DOMAIN DEFAULT CLOCK SELECTION DESCRIPTION NAME SOURCE REGISTER HCLK OSCIN GHVSRC • Is disabled through the CDDISx registers bit 1 • Always the same frequency as HCLK • In phase with HCLK • Is disabled separately from HCLK through the CDDISx registers GCLK OSCIN GHVSRC bit 0 • Can be divided by 1 up to 8 when running CPU self-test (LBIST) using the CLKDIV field of the STCCLKDIV register at address 0xFFFFE108 • Always the same frequency as GCLK • 2 cycles delayed from GCLK GCLK2 OSCIN GHVSRC • Is disabled along with GCLK • Gets divided by the same divider setting as that for GCLK when running CPU self-test (LBIST) • Divided down from HCLK • Can be HCLK/1, HCLK/2, ... or HCLK/16 • Is disabled separately from HCLK through the CDDISx registers VCLK OSCIN GHVSRC bit 2 • Can be disabled separately for eQEP using CDDISx registers bit 9 • Divided down from HCLK • Can be HCLK/1, HCLK/2, ... or HCLK/16 VCLK2 OSCIN GHVSRC • Frequency must be an integer multiple of VCLK frequency • Is disabled separately from HCLK through the CDDISx registers bit 3 • Defaults to VCLK as the source VCLKA1 VCLK VCLKASRC • Frequency can be as fast as HCLK frequency • Is disabled through the CDDISx registers bit 4 • Defaults to VCLK as the source • If a clock source other than VCLK is selected for RTICLK, then the RTICLK frequency must be less than or equal to VCLK/3 RTICLK VCLK RCLKSRC – Application can ensure this by programming the RTI1DIV field of the RCLKSRC register, if necessary • Is disabled through the CDDISx registers bit 6 38 System Information and Electrical Specifications Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TMS570LS0432 TMS570LS0332 |
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