Epson S1C6200A Specifiche Pagina 37

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S1C6S2N7 TECHNICAL HARDWARE EPSON I-25
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)
Output Ports (R00–R03)
The S1C6S2N7 Series has a 4-bit general output port (R00–
R03).
Output specification of the output port can be selected in a
bit unit with the mask option. Two kinds of output specifi-
cations 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 shows the configuration of the output port.
Configuration of
output port
4.4
Fig. 4.4.1
Configuration of output port
Register
Data bus
Address
V
DD
V
SS
Rxx
Complementary
Pch open drain
Mask option
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