5 Appendix
5.1 Connection example using none-multiplexed Bus interface
A connection example of the non-multiplexed mode is summarized in the following table.
The gray entries show the differences between two parallel modes. All pins of the MB88121
communication controller (CC) are divided into 7 categories:
•
External bus interface: CC pins in connection with MCU pins
•
CC mode pins
•
CC debug pins
•
CC stop watch trigger pin
•
CC pins in connection with physical layer transceiver
•
CC power supply pins
•
CC external clock pin
Note:
1. The connection of the interrupt pins is application-specific. The table here shows only
an example.
2. The CC reset pin can be controlled by MCU reset pin or by an independent circuitry.
3. By default settings in file start91460.asm (see chapter 2.5) chip select area 3 is
configured. Other areas can also be used.
4. For the power supply it should be noticed that MB88121B is a single voltage supply
chip. All power supply pins should have the same supply voltage between 3.3V and
5V (see chapter 2.2).
© Fujitsu Microelectronics Europe GmbH
Interfacing MB91460 TO MB88121
Chapter 5 Appendix
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MCU-AN-300016-E-V10