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Switches
3-5
Operation
3.2.5 SW5: Emulation and Control Switch
SW5 provides the means to break several signals so that they can be con-
trolled by an emulator plugged into J14. This switch also provides a means
of setting the operating mode of the MSC1211.
Table 3–3.SW5: Configuration Control Switch
Switch
number
Function
1 Enables the /RD signal or breaks for emulator use.
2 Enables the /WR signal or breaks for emulator use.
3 Enables the Reset signal or breaks for emulator use.
4 Enables the PSEN signal or breaks for emulator use.
5 Provides a method to pull PSEN low.
6 Enables banks switching of 128K RAM memory
7 Provides a method to pull ALE low.
8 Connects EA to DGND