Mode Setting - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 7 MODE SETTING
7.1

Mode Setting

2
F MC-16LX has respective modes in the access method, access area, and test.
Respective mode is set according to the mode pin at the time of reset and the mode-
fetched mode data.
Mode Setting
2
F MC-16LX has respective modes in the access method, the access area, and the test, and Figure 7.1-1
shows the classification.
Operation mode
RUN operation
Flash write mode
Various test function mode
Operating Mode
The operation mode controls the operation state of the device and is specified by the mode setting pin
(MDx) and the contents of the Mx bit in the mode data. Selecting the operation mode, you may perform the
normal operation/the start of the internal test program/the start of the special test function.
Bus Modes
The bus mode controls the internal ROM operation and the external access function operation, and is
specified by the mode setting pin (MDx) and the contents of the Mx bit in the mode data. The mode setting
pin (MDx) specifies the bus mode to read the reset vector and the mode data. The Mx bit in the mode data
specifies the bus mode at the normal operation.
Access Mode
The access mode controls the external data bus width and is specified by the mode setting pin (MDx) and
the Sx bit in the mode data. Selecting the access mode specifies either the 8-bit length or the 16-bit length
for the external data bus. Also, this mode specifies either the non-multiplex mode or the multiplex mode for
the address data bus.
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Figure 7.1-1 Classification of Mode
Bus mode
Single chip mode
Internal ROM external bus mode
External ROM external bus mode
Access mode
External bus data bus length
8/16-bit
Address data bus
Non-multiplex mode
Multiplex mode