Specifications

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

Data bus

Address

Rxx

Complementary

Pch open drain

Mask option