ZHCS103Q March 2011 – March 2024 TUSB7320 , TUSB7340
PRODUCTION DATA
The TUSB73X0 includes a System Management Interrupt (SMI) pin to allow for USB support in the BIOS of a system that implements the TUSB73X0. The SMI pin is controlled by the bits in the USB Legacy Support Control/Status Register. See USB Legacy Support Control/Status Register for more information. If there are no SMI events pending or if all sources for SMI are disabled, the TUSB73X0 drives the SMI pin low. When an SMI event occurs and the corresponding event is enabled, the TUSB73X0 drives the SMI pin high until the event is cleared or disabled.