Product specifications

14 EPSON S5U1C6S3N2E2 MANUAL
(EVALUATION BOARD FOR S1C60N09/6S3N2/62N33)
6 PRECAUTIONS
<Oscillation circuit>
The oscillation circuits in the S5U1C6S3N2E2 and the oscillation frequencies are configured according
to the selected model as follows:
When the S5U1C6S3N2E2 is set for the S1C6S3N2:
The OSC1 oscillation frequency is fixed at 32.768 kHz with a crystal oscillator.
The OSC3 oscillation frequency is fixed at 1 MHz when ceramic oscillation is selected. When CR
oscillation is selected, the frequency can be adjusted approximately from 700 kHz to 1.3 MHz.
When the S5U1C6S3N2E2 is set for the S1C62N33:
The OSC1 oscillation frequency is fixed at 32.768 kHz with a crystal oscillator.
The OSC3 oscillation frequency is fixed at 455 kHz when ceramic oscillation is selected. When CR
oscillation is selected, the frequency can be adjusted approximately from 300 kHz to 560 kHz.
When the S5U1C6S3N2E2 is set for the S1C60N09:
The OSC1 oscillation frequency is fixed at 32.768 kHz when crystal oscillation is selected. When CR
oscillation is selected, the frequency can be adjusted approximately from 44 kHz to 85 kHz.
Refer to the Technical Manual of each model for the operating frequency range of the actual IC.
The oscillation stabilization time for OSC3 and OSC1 is shorter than the actual IC. The time from
turning the OSC3 oscillation on to switching the system clock to OSC3 should be secured according to
the time of the actual IC. *
Use separate instructions for turning the OSC3 oscillation on and for switching the clock from OSC1
to OSC3. The same applies when turning the OSC1 oscillation off after switching the clock from OSC3
to OSC1. The S5U1C6S3N2E2 may operate if this processing is performed at the same time. Be sure to
use separate instructions according to the actual IC when creating the program. *
The oscillation start and stop times are different from those of the actual IC, because the logic level of
the S5U1C6S3N2E2 is higher than that of the actual IC.
<Waiting time>
The actual IC requires an appropriate waiting time for the operation of the following functions, but
the S5U1C6S3N2E2 may operate properly without the waiting time. Therefore, it may cause a mal-
function in the actual IC even though the program operates properly in the S5U1C6S3N2E2. Be sure to
follow the notes described in the Technical Manual of each model.
SVD function (SVDON or BLS)*
AMP function (AMPON)*
<Undefined data memory area>
In the S5U1C6S3N2E2, values that are read from unmapped memory areas will be undefined. How-
ever, the undefined status differs from the actual IC, therefore pay attention to the memory area when
creating programs. Refer to the Technical Manual of each model for the memory map.
<Reset circuit>
The S5U1C6S3N2E2 does not contain an oscillation stop detection circuit (to generate a system reset
signal when the oscillation has stopped). Note that the oscillation stop detection circuit can not
guarantee operation with 100% accuracy.
The sequence of operations from when the S5U1C6S3N2E2 is turned on until the program starts
operating is different from the actual IC. The S5U1C6S3N2E2 can start executing the program after the
user program and option data are loaded on the S5U1C6S3N2E2.