Fujitsu MAP3735, MAP3367, MAP3147, MAS3735, MAS3367 Mode Select parameters caching parameters

Parameter Data Formats

	Bit	7	6	5		4	3		2	1	0
Byte
0		0	0	0	0		1	0		0	0
1				X‘0A’ or X‘12’ (Page Length)
2		IC	ABPF	CAP		DISC	SIZE		WCE	MS	RCD
	Default	0	0	0		1	0		1	0	0
	Variable	1	0	0		0	0		1	0	1
3		Demand Read Retention Priority						Write Retention Priority
	Default	0	0	0	0		0	0		0	0
	Variable	0	0	0	0		0	0		0	0
4-5					Pre-fetch inhibit block count
	Default					X‘FFFF’
	Variable					X‘0000’
6-7						Minimum pre-fetch
	Default					X‘0000’
	Variable					X‘0000’
8-9						Maximum pre-fetch
	Default					X‘0000’
	Variable					X‘0000’
10-11				Maximum pre-fetch limit block count
	Default					X‘FFFF’
	Variable					X‘0000’
12		FSW	LBCSS	DRA		VS	VS			(Reserved)
	Default	1	0	0		0	0		0	0	0
	Variable	0	0	0		0	0		0	0	0
13						Cache Segment Count
	Default					X‘08’
	Variable					X‘3F’
14-15						Cache Segment Size
	Default					X‘0000’
	Variable					X‘0000’
16						X‘00’ (Reserved)
17-19					Non Cache Segment Size
	Default					X‘000000’
	Variable					X‘000000’

Figure 4.6 MODE SELECT parameters: caching parameters

The parameters defined in this page descriptor control the range of look-ahead data in the Look- Ahead cache feature and enable or disable the caching operation. See Section 2.2, "Look-Ahead Cache Feature" and Section 2.3, "Write Cache" concerning details of the Look-Ahead cache feature and parameter setting methods.

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