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TMP86F808DMG Scheda tecnica(PDF) 10 Page - Toshiba Semiconductor |
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TMP86F808DMG Scheda tecnica(HTML) 10 Page - Toshiba Semiconductor |
10 / 34 page 86F808-10 2007-08-07 TMP86F808 To set a serial PROM mode, connect device pins as shown in Figure 2.3.1. Figure 2.3.1 Serial PROM Mode Port Setting 2.3.3 Activating Serial PROM Mode The following is a procedure of setting of serial PROM mode. Figure 2.3.2 shows a serial PROM mode timing. (1) Turn on the power to the VDD pin. (2) Set the RESET to low level. (3) Set the TEST, BOOT1 and BOOT2 pin to high level. (4) Wait until the power supply and clock sufficiently stabilize. (5) Release the RESET (Set to high level). (6) Input a matching data (5AH) to BOOT1/RXD pin after waiting for setup sequence. For details of the setup timing, refer to 2.14 “UART Timing”. Figure 2.3.2 Serial PROM Mode Timing TMP86F808 VDD(4.5 V to 5.5 V) VDD TEST RXD (P10) TXD (P11) RESET : Pull up XIN XOUT BOOT1/RXD BOOT2/TXD VSS VDD TEST (Input) RESET (Input) Program BOOT1 (Input)/ RXD (Input) BOOT2 (Input)/ TXD (Output) Serial PROM mode Reset mode Indeterminate Matching data input Setup time for serial PROM mode (Rxsup) Fixed to high level by pull up |
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