L210 Cache Controller Technical Reference Manual 2.3.2. Cache Type Register

2.3.2. Cache Type Register

This read-only register returns the 32-bit Cache Type, which makes the cache parameters a product of cache controller cache way size and the cache controller associativity. Figure 2.2 shows the format of the Cache Type Register.

Figure 2.2. Cache Type Register

Table 2.5 shows the encoding of the Cache Type Register.

Table 2.5. Cache Type Register

Bits	Field	Subfield	Comments
[31:29]	Should be Zero (SBZ)	-	0b00
[28:25]	Cache type	-	0b1110, Lockdown format C
[24}	H	-	0b0, unified
[23:12]	DCache size	-	-
	[23:20]^[1]	Way size	Read from Auxiliary Control Register bits [19:17]
	[19:15]^[2]	Associativity	Read from Auxiliary Control Register bits [16:13]
	[14]	SBZ	-
	[13:12]	Line length	0b00-32 bytes
[11:0]	ICache size	-	-
	[11:8]^[3]	Way size	Read from Auxiliary Control Register bits [19:17]
	[7:3]^[4]	Associativity	Read from Auxiliary Control Register bits [16:13]
	[2]	SBZ	-
	[1:0]	Line length	b00-32 bytes
^[1]The first bit is always 0. ^[2]The first bit is always 0. ^[3]The first bit is always 0. ^[4]The first bit is always 0.

Sizes and associativity gives more information on cache size and associativity.

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