Specifications

S1C62N82 TECHNICAL HARDWARE EPSON I-37

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)

The mask option enables the following output port selection.

(1) Output specifications of output ports

The output specifications for the output ports (R00–R03,

R10–R12) may be either complementary output or Pch

open drain output for each of the seven 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 R10 and R12, as shown in

Table 4.4.1. Figure 4.4.2 shows the structure of output

ports R10–R12.

Pin Name When Special Output is Selected

R12 MO or ENV

R10 FOUT

Mask option

Table 4.4.1

Special output

Fig. 4.4.2

Structure of output port

R10–R12

Address

(0F4H)

FOUT

Data bus

R10

R11

R12

Mask option

(R12)

(R11)

(R10)

MO or

ENV