Fujitsu MB2198-130 operation manual Setting the Memory Connective Switches, SW4

Chapter 5 Usage

■Setting the Memory Connective Switches

These switches can be used to disconnect address lines disabled by the memory capacity switching function from buffers and using them as user resources instead when the external-memory emulation function is used. Even when the external-memory emulation function is not used, the switches can be used to disconnect those address lines from buffers to reduce the load on the address lines used as user resources.

Figure 5.4-3 shows the factor settings of the switches; Table 5.4-2 lists the elements of the switches and their respective signal conductors and evaluation MCU’s pin numbers.

		SW2
RD	1 2	ON
A1
A2	3
A3	4
A4	5
A5	6
A6	7
A7	8
A8	1 2	ON	SW3
A9
A10	3
A11	4
A12	5
A13	6
A14	7
A15	8
A16	1 2	ON	SW4
A17
A18	3
A19	4
A20	5
A21	6
	7
	8

Figure 5.4-3 Setting the Memory Connective Switches (Factory Setting)

Table 5.4-2 The Memory Connective Switch Settings

Part number	Element number	Relevant signal	Evaluation MCU’s pin
(Printed on board)	(Labeled on switch)	conductor	number
	1	P54 (RDX)	140
	2	P21 (A1)	310
	3	P22 (A2)	201
SW2	4	P23 (A3)	357
	5	P24 (A4)	257
	6	P25 (A5)	144
	7	P26 (A6)	309
	8	P27 (A7)	256
	1	P30 (A8)	200
	2	P31 (A9)	356
	3	P32 (A10)	308
SW3	4	P33 (A11)	92
	5	P34 (A12)	44
	6	P35 (A13)	255
	7	P36 (A14)	143
	8	P37 (A15)	199
	1	P40 (A16)	307
	2	P41 (A17)	91
SW4	3	P42 (A18)	142
	4	P43 (A19)	254
	5	P44 (A20)	43
	6	P45 (A21)	198

*: The user resources corresponding to the above pin numbers are different depending on the eval- uation MCU used.

For details, refer to the hardware manual for the evaluation MCU to be used or “APPENDIX User Interface Specifications”.

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