Input Ports (K00-K03, K10-K13 And K20); Configuration Of Input Ports - Epson S1C6P366 Technical Manual

4.4 Input Ports (K00–K03, K10–K13 and K20)

4.4.1 Configuration of input ports

The S1C6P366 has nine bits of general-purpose input ports. Each of the input port terminals (K00–K03,
K10–K13, K20) provides internal pull-up resistor.
Figure 4.4.1.1 shows the configuration of input port (K00–K03, K10–K13).
Figure 4.4.1.2 shows the configuration of input port (K20).
K20
S1C6P366 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Input Ports)
Kxx
Fig. 4.4.1.1 Configuration of input port (K00–K03, K10–K13)
Fig. 4.4.1.2 Configuration of input port (K20)
V
DD
Interrupt
request
Address
V
SS
Address
V
DD
Key sense
ON/OFF control
Interrupt
request
Address
V
SS
EPSON
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