Cpu Mode - Fujitsu MB90895 Series Hardware Manual

3.9

CPU Mode

2
The F MC-16XL family can set the CPU operation and the access method and area by
switching the operation mode and access mode.
I Classification of Modes
Table 3.9-1 "Classification of Modes" shows the classification of operation modes and memory access
modes for the F
fetched mode data.
Table 3.9-1 Classification of Modes
RUN modes
Flash serial programming mode
Flash memory mode
I Operating mode
The operation modes control the operating state of the device and are set by the mode pins (MD2 to MD0).
G
RUN modes
The RUN mode is the normal CPU operation mode.It provides various low-power consumption modes,
such as the main clock mode, PLL clock mode, and sub clock mode.
Reference: For details on the low power consumption modes, see 3.8 "Low-power Consumption Mode".
G
Flash serial programming mode and flash memory mode
Some products in MB90895 series have user-programmable flash memory.
The flash serial programming mode is that for serially programming data to flash memory.
2
MC-16XL family.Each mode is set by mode pins (MD2 to MD0) in reset and mode-
Operating mode Memory Access Mode
Bus Modes
Single-chip mode
(Internal-ROM internal-bus mode)
−
−
CHAPTER 3 CPU
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