Download BIOS and Programmer`s Reference Guide
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Field Programmable Gate Array Registers SCIEN The SCI Enable Register (SCIEN) defines the type of events that can generate an SCI. Refer to Table 5-18 Table 5-18. Bit Descriptions for the SCIEN Register 7 (most significant bit) 6 5 4 3 2 1 0 (least significant bit) ENABLE RES RES ENUM ALARM_A ALARM_B TEMP SMB SMB (Bit 0) ❏ Set to a logic 1 to allow generation of an SCI when SMB ALERT is active. SMB ALERT is active when logic 0. ❏ Write a logic 0 to this bit to disable an SCI for this event. TEMP (Bit 1) ❏ Set to a logic 1 to allow generation of an SCI when TEMP is active. TEMP is the ATF signal from the MMC2 and is active when logic 0. ❏ Write a logic 0 to this bit to disable an SCI for this event. ALARM_A (Bit 3) and ALARM_B (Bit 2) ❏ Set to a logic 1 to allow the generation of an SCI when the ALARM_A or ALARM_B go active. Alarm is active when logic 0. ❏ Write a logic 0 to these bits to disable an SCI for this event. ENUM (Bit 4) ❏ Set to a logic 1 to allow generation of an SCI when the ENUM event occurs. ❏ Write a logic 0 to this bit to disable an SCI for this event. http://www.motorola.com/computer/literature 5-23 5