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PIC18F4580-E/ML Datasheet(PDF) 449 Page - Microchip Technology |
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PIC18F4580-E/ML Datasheet(HTML) 449 Page - Microchip Technology |
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449 / 490 page ![]() © 2009 Microchip Technology Inc. DS39637D-page 449 PIC18F2480/2580/4480/4580 FIGURE 28-14: EXAMPLE SPI SLAVE MODE TIMING (CKE = 0) TABLE 28-16: EXAMPLE SPI MODE REQUIREMENTS (SLAVE MODE TIMING, CKE = 0) Param No. Symbol Characteristic Min Max Units Conditions 70 TSSL2SCH , TSSL2SCL SS ↓ to SCK ↓ or SCK ↑ Input 3 TCY —ns 71 TSCH SCK Input High Time Continuous 1.25 TCY + 30 — ns 71A Single Byte 40 — ns (Note 1) 72 TSCL SCK Input Low Time Continuous 1.25 TCY + 30 — ns 72A Single Byte 40 — ns (Note 1) 73 TDIV2SCH, TDIV2SCL Setup Time of SDI Data Input to SCK Edge 20 — ns 73A TB2B Last Clock Edge of Byte1 to the First Clock Edge of Byte 2 1.5 TCY + 40 — ns (Note 2) 74 TSCH2DIL, TSCL2DIL Hold Time of SDI Data Input to SCK Edge 40 — ns 75 TDOR SDO Data Output Rise Time PIC18FXXXX — 25 ns PIC18LFXXXX 45 ns VDD = 2.0V 76 TDOF SDO Data Output Fall Time — 25 ns 77 TSSH2DOZSS ↑ to SDO Output High-Impedance 10 50 ns 80 TSCH2DOV , TSCL2DOV SDO Data Output Valid after SCK Edge PIC18FXXXX — 50 ns PIC18LFXXXX 100 ns VDD = 2.0V 83 TscH2ssH , TscL2ssH SS ↑ after SCK Edge 1.5 TCY + 40 — ns Note 1: Requires the use of Parameter #73A. 2: Only if Parameter #71A and #72A are used. SS SCK (CKP = 0) SCK (CKP = 1) SDO SDI 70 71 72 73 74 75, 76 77 78 79 80 79 78 SDI MSb LSb bit 6 - - - - - -1 bit 6 - - - -1 LSb In 83 MSb In |
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