Output Ports (R00-R03); Configuration Of Output Port; Mask Option - Epson S1C60N03 Technical Manual

4.4 Output Ports (R00–R03)

4.4.1 Configuration of output port

The S1C60N03 Series has a 4-bit general output port (R00–R03).
Output specification of the output port can be selected in a bit units with the mask option. Two kinds of
output specifications are available: complementary output and Pch open drain output. Also, the mask
option enables the output ports R00 and R01 to be used as special output ports. Figure 4.4.1.1 shows the
configuration of the output port.

4.4.2 Mask option

The mask option enables the following output port selection.
(1) Output specification of output port
The output specifications for the output port (R00–R03) may be either complementary output or Pch
open drain output for each of the two bits. However, even when Pch open drain output is selected, a
voltage exceeding the source voltage must not be applied to the output port.
(2) Special output
In addition to the regular DC output, special output can be selected for output ports R00 and R01, as
shown in Table 4.4.2.1. Figure 4.4.2.1 shows the structure of output ports R00–R03.
S1C60N03 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)
Register
Complementary
Pch open drain
Address
Fig. 4.4.1.1 Configuration of output port
Table 4.4.2.1 Special output
Output port
R00 FOUT or BUZZER output
R01
Register R03
Register R02
Register R01
Register R00
Address 0F1H
Fig. 4.4.2.1 Structire of output ports R00–R03
EPSON
V
DD
Rxx
V
SS
Mask option
Special output
BUZZER output
BUZZER
BUZZER
FOUT
Mask option
R03
R02
R01
R00
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