Freescale Semiconductor SC140 specifications Aws, Access Width Selection

		Event Detection Unit (EDU) Channels and Registers
	Table 4-20. EDCD_CTRL Description (Continued)
Name	Description	Settings
AWS	Access Width Selection —	00 = Byte
Bits 9–8	Determines the width of the data access	01 = Word
	that should be watched. The different	10 = Long
	width types are summarized in the	11 = Reserved
	settings column.
	In byte access mode, only the eight LSB
	bits of the masked data are compared
	with the eight LSB bits of the
	EDCD_REF register. One or four
	comparisons are performed with logical
	OR among them, depending on the
	access resolution (byte or quad-byte).
	When word access width is chosen, the
	sixteen LSB bits of the EDCD_REF
	register are compared with each of the
	sixteen bits of the masked data. One,
	two, or four comparisons are performed
	with logical OR among them, depending
	on the access resolution (word,
	double-word, or quad-word).
	When long access width is chosen, then
	the 32 LSB bits of the EDCD_REF
	register are compared with each of the
	32 bits of the masked data. One or two
	comparisons are performed with logical
	OR among them, depending on the
	access resolution (long or double-long).
R	Reserved
Bit 7

SC140 DSP Core Reference Manual 4-59