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Base - VE_SysRegs component

This section describes the VE system registers component.

VE_SysRegs - parameters

This section describes the parameters.

Table 6-19 Base Platform VE_SysRegs parameters

Name Type Allowed values Default value Description
exit_on_shutdown bool true, false false true: if software uses the SYS_CFGCTRL function SYS_CFG_SHUTDOWN, then the simulator shuts down and exits.a
mmbSiteDefault uint8_t 0x0-0x2 0x1

Default MMB source. 0x0, MB. 0x1, DB1. 0x2, DB2.

tilePresent bool true, false true Tile fitted.
user_switches_value uint32_t - 0x0 User switches.

VE_SysRegs - registers

This section describes the configuration registers.

Table 6-20 Base Platform VE_SysRegs registers

Name Offset Access Description
SYS_ID 0x00 Read/write System identity.
SYS_SW 0x04 Read/write Bits[7:0] map to switch S6.
SYS_LED 0x08 Read/write Bits[7:0] map to user LEDs.
SYS_100HZ 0x24 Read only 100Hz counter.
SYS_FLAGS 0x30 Read/write General-purpose flags.
SYS_FLAGSCLR 0x34 Write only Clear bits in general-purpose flags.
SYS_NVFLAGS 0x38 Read/write General-purpose non-volatile flags.
SYS_NVFLAGSCLR 0x3C Write only Clear bits in general-purpose non-volatile flags.
SYS_MCI 0x48 Read only MCI.
SYS_FLASH 0x4C Read/write Flash control.
SYS_CFGSW 0x58 Read/write Boot-select switch.
SYS_24MHZ 0x5C Read only 24MHz counter.
SYS_MISC 0x60 Read/write Miscellaneous control flags.
SYS_DMA 0x64 Read/write DMA peripheral map.
SYS_PROCID0 0x84 Read/write Processor ID.
SYS_PROCID1 0x88 Read/write Processor ID.
SYS_PROCID2 0x8C Read/write Processor ID.
SYS_PROCID3 0x90 Read/write Processor ID.
SYS_CFGDATA 0xA0 Read/write Data to read/write from & to motherboard controller.
SYS_CFGCTRL 0xA4 Read/write Control data transfer to motherboard controller.
SYS_CFGSTAT 0xA8 Read/write Status of data transfer to motherboard controller.
a For more information on SYS_CFGCTRL, see the Motherboard Express μATX V2M-P1 Technical Reference Manual.