HTEB1
User manual
S_PROG/RUN switches between RUN- and PROG(PROGRAMMING) mode.
KEY_1 (T1) to KEY_4 (T4) are user keys.
RESET_KEY (T7) is for reset.
Orientation | Operation |
LEFT | PROG(programming) mode |
RIGHT | RUN mode |
Main crystal (Q1) can be changed to another frequency. Therefore a crystal socket is provided. Please refer to the microcontroller hardware documentation for recommended devices. The crystal type should be a HC49 / HC49U type. Eventually change the capacitors C6/C7 if necessary. If you change the crystal frequency take care on possible changes by flash download tool (see FDT manual).
Figure 1.5 crystal socket
Issue 0.2 | Page 8 | 07/2002 |