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PIC18F4550ESOSQTP Datasheet(PDF) 391 Page - Microchip Technology |
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PIC18F4550ESOSQTP Datasheet(HTML) 391 Page - Microchip Technology |
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391 / 430 page  © 2007 Microchip Technology Inc. Preliminary DS39632D-page 389 PIC18F2455/2550/4455/4550 FIGURE 28-14: EXAMPLE SPI SLAVE MODE TIMING (CKE = 1) TABLE 28-18: EXAMPLE SPI SLAVE MODE REQUIREMENTS (CKE = 1) Param No. Symbol Characteristic Min Max Units Conditions 70 TssL2scH, TssL2scL SS ↓ to SCK ↓ or SCK ↑ Input TCY —ns 71 TscH SCK Input High Time (Slave mode) Continuous 1.25 TCY + 30 — ns 71A Single Byte 40 — ns (Note 1) 72 TscL SCK Input Low Time (Slave mode) Continuous 1.25 TCY + 30 — ns 72A Single Byte 40 — ns (Note 1) 73A Tb2b Last Clock Edge of Byte 1 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 100 — 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 TssH2doZ SS ↑ to SDO Output High-Impedance 10 50 ns 78 TscR SCK Output Rise Time (Master mode) PIC18FXXXX — 25 ns PIC18LFXXXX — 45 ns VDD = 2.0V 79 TscF SCK Output Fall Time (Master mode) — 25 ns 80 TscH2doV, TscL2doV SDO Data Output Valid after SCK Edge PIC18FXXXX — 50 ns PIC18LFXXXX — 100 ns VDD = 2.0V 82 TssL2doV SDO Data Output Valid after SS ↓ 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 82 SDI 74 75, 76 MSb bit 6 - - - - - -1 LSb 77 MSb In bit 6 - - - -1 LSb In 80 83 Note: Refer to Figure 28-4 for load conditions. |
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