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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.
Part number
(Printed on board)
* : 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".
32
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Figure 5.4-3 Setting the Memory Connective Switches (Factory Setting)
Table 5.4-2 The Memory Connective Switch Settings
Element number
(Labeled on switch)
1
2
3
4
SW2
5
6
7
8
1
2
3
4
SW3
5
6
7
8
1
2
3
SW4
4
5
6
SW2
RD
A1
A2
A3
A4
A5
A6
A7
A8
SW3
A9
A10
A11
A12
A13
A14
A15
A16
SW4
A17
A18
A19
A20
A21
Relevant signal
conductor
P54 (RDX)
P21 (A1)
P22 (A2)
P23 (A3)
P24 (A4)
P25 (A5)
P26 (A6)
P27 (A7)
P30 (A8)
P31 (A9)
P32 (A10)
P33 (A11)
P34 (A12)
P35 (A13)
P36 (A14)
P37 (A15)
P40 (A16)
P41 (A17)
P42 (A18)
P43 (A19)
P44 (A20)
P45 (A21)
Evaluation MCU's pin
number
140
310
201
357
257
144
309
256
200
356
308
92
44
255
143
199
307
91
142
254
43
198
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