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TNETV2501INPGF Datasheet(PDF) 185 Page - Texas Instruments |
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TNETV2501INPGF Datasheet(HTML) 185 Page - Texas Instruments |
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185 / 197 page  Electrical Specifications 185 December 2002 − Revised November 2008 SPRS206K 5.16.2 HPI General-Purpose I/O Timings Table 5−45 and Table 5−46 assume testing over recommended operating conditions (see Figure 5−44). Table 5−45. HPI General-Purpose I/O Timing Requirements† NO. MIN MAX UNIT H27 tsu(HDGPIO−COH) Setup time, HDGPIO input mode before CLKOUT high‡ 5 ns H28 th(COH−HDGPIO) Hold time, HDGPIO input mode after CLKOUT high‡ 0 ns H29 tsu(HCGPIO−COH) Setup time, HCGPIO input mode before CLKOUT high§ 5 ns H30 th(COH−HCGPIO) Hold time, HCGPIO input mode after CLKOUT high§ 0 ns † In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. ‡ HDGPIO refers to HPI.HD[7:0] configured as general-purpose input. § HCGPIO refers to HPI.HAS, HPI.HBIL, HCNTL0, HCNTL1, HCS, HR/W, HDS1, HDS2, HRDY, and HINT configured as general-purpose input. Table 5−46. HPI General-Purpose I/O Switching Characteristics† NO. PARAMETER MIN MAX UNIT H21 td(COH−HDGPIO) Delay time, CLKOUT high to HDGPIO output mode¶ 10 ns H22 td(COH−HCGPIO) Delay time, CLKOUT high to HCGPIO output mode# 10 ns † In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. ¶ HDGPIO refers to HPI.HD[7:0] configured as general-purpose output. # HCGPIO refers to HPI.HAS, HPI.HBIL, HCNTL0, HCNTL1, HCS, HR/W, HDS1, HDS2, HRDY, and HINT configured as general-purpose output. CLKOUT HDGPIO Input Mode HDGPIO Output Mode H27 H28 H21 HCGPIO Input Mode HCGPIO Output Mode H29 H30 H22 Figure 5−44. HPI General-Purpose I/O Timings |
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