Hello Expert,
TCAN4550-Q1 includes a test mode that has four configurations:
1. Transceiver Test Mode: Bit 21 (TEST_MODE_EN) of Modes of Operation and Pin Register (0800) is set, and the TEST_MODE_CONFIG (bit 0)= 0. In this mode, the transceiver TXD_INT_PHY is mapped to the CLCKOUT/GPIO1 pin, and RXD_INT_PHY is mapped to the GPO2 pin. EN_INT pin is mapped to the nINT pin.
What is EN_INT used for? In this mode, If I toggle GPIO1 to 1, is GPIO2 toggled to 1 also?
2. MCAN Core Test Mode: Bit 21 (TEST_MODE_EN) of Modes of Operation and Pin Register (0800) is set, and the TEST_MODE_CONFIG (bit 0)= 1. In this mode, the CAN core RXD_INT_CAN is mapped to the GPIO1 pin, and TXD_INT_CAN is mapped to the GPO2 pin. How do I use this mode?
Is GPIO2 equal to GPIO1 in this test mode?
Thanks in advance