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Chapter 3 Jumpers and Switches
© Fujitsu Semiconductor Europe GmbH
- 19 -
FMEMCU-UG-960031-13
3.4 Subclock
(JP: 1, 2)
All MB9600 microcontrollers and all MB96300 derivates with ordering post-
sign „W‟ like e.g.
MB96F38xRW support a 32 kHz sub-clock (X0A, X1A), other devices like e.g. MB96F38xRS
do not support a sub-clock but will offer additional port-pins (e.g. P04_0, P04_1) instead.
Please check the related datasheet.
JP1:
defines usage of pin 69 (X1A)
JP2:
defines usage of pin 68 (X0A)
Jumper
Setting
Description
JP2
(X0A)
1-4
Pin 68 is connected to the 32 kHz sub-clock (X0A)
2-4
Pin 68 is used as port pin P04_0
3-4
Pin 68 is connected to GND (in case that subclock-
device is used, but no 32 kHz crystal is connected)
JP1
(X1A)
1-2
Pin 69 is connected to the 32 kHz sub-clock (X1A)
2-3
Pin 69 is used as port pin P04_1
Table 3-4: Subclock
Default: JP1: 1-2, JP2: 1-4
By default, the 32 kHz sub-clock-crystal is connected to the microcontroller.
4
3
1
2
Pin-out JP2:
