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BM78SPP05NC2 Datasheet(PDF) 11 Page - Microchip Technology |
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BM78SPP05NC2 Datasheet(HTML) 11 Page - Microchip Technology |
11 / 60 page 2016 Microchip Technology Inc. Advance Information DS60001380A-Page 11 BM78 2.0 APPLICATION INFORMATION 2.1 System Configuration The I/O pins, P2_0, P2_4 and EAN, place the BM78 into operating mode and each of these pins have inter- nal pull up and allow configuration settings and firm- ware to be updated from UART. Table 2-1 provides system configuration details. TABLE 2-1: SYSTEM CONFIGURATION SETTINGS 2.2 Control and Indication I/O Pins The I/O pins, P0_0, P0_5, P1_7, P3_1, P3_2, P3_3, P3_4, and P3_7, are configurable control and indica- tion pins. The control signals are inputs to the BM78 and the indication signals are outputs from the BM78. Table 2-2 provides default I/O pin configuration details. TABLE 2-2: CONTROL AND INDICATION I/O PIN ASSIGNMENTS Note 1: The RTS pin can only be assigned to P0_0 and the CTS pin can only be assigned to P1_7. 2: The RTS and CTS pins can be configured as GPIOs if flow control is disabled. Module P2_0 P2_4 EAN Operational Mode BM78SPPx5NC2 (ROM Variant) Low High High Write EEPROM and test mode High High High Normal operation/application mode BM78SPPx5MC2 (Flash Variant) Low Low High Write FLASH Low High Low Write EEPROM and test mode High High Low Normal operational/application mode P0_0 ■ P0_5 ■ P1_7 ■ P3_1 ■ P3_2 ■ P3_3 ■ P3_4 ■ P3_7 ■ |
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