Texas Instruments SM320F2812-HT Device Emulation Registers, External Interface, Xintf

SM320F2812-HT

www.ti.com SGUS062A –JUNE 2009 –REVISED APRIL 2010

3.4Device Emulation Registers

These registers are used to control the protection mode of the C28x CPU and to monitor some critical device signals. The registers are defined in Table 3-7.

Table 3-7. Device Emulation Registers

NAME	ADDRESS RANGE	SIZE (× 16)	DESCRIPTION
DEVICECNF	0x00 0880	2	Device Configuration Register
	0x00 0881
reserved	0x00 0882	1	Not supported on Revision C and later silicon
			Device ID Register (0x0003	– Silicon – Rev. C and D)
DEVICEID	0x00 0883	1	Device ID Register (0x0004	– Reserved)
			Device ID Register (0x0005	– Silicon – Rev. E)
PROTSTART	0x00 0884	1	Block Protection Start Address Register
PROTRANGE	0x00 0885	1	Block Protection Range Address Register
reserved	0x00 0886	378
	0x00 09FF

3.5External Interface, XINTF

This section gives a top-level view of the external interface (XINTF) that is implemented on the F2812 device.

The external interface is a non-multiplexed asynchronous bus, similar to the C240x external interface. The external interface on the F2812 is mapped into five fixed zones shown in Figure 3-3.

Figure 3-3shows the F2812 XINTF signals.

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