4.3 Subclock (JP: 55,56)
Some devices support a 32 kHz subclock (X0A, X1A), other devices do not support a
subclock but will offer additional port-pins (e.g. P40, P41) instead.
Please check the related datasheet.
JP55: defines usage of microcontroller pin 11 (X0A/P40)
JP56: defines usage of microcontroller pin 12 (X1A/P41)
SUB - Pin11
P40 - Pin11
GND - Pin11
Default: JP55: 1-4, JP56: 1-2
By default, the 32kHz-subclock-crystal is connected to the microcontroller.
Chapter 4 Jumpers and Switches
Pin 11 is connected to the 32 kHz Subclock (X0A)
Pin 11 is used as P40 and is connected to X3-11
Pin 11 is connected to GND (in case that subclock-
device is used, but no 32kHz crystal is connected)
Pin 12 is connected to the 32kHz Subclock (X1A)
Pin 12 is used as P41 and is connected to X3-12
- 12 -
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