Port Configuration - NEC 78K0 User Manual

4.2 Port Configuration

Ports include the following hardware.
Item
Control registers
Ports
Pull-up resistors
CHAPTER 4 PORT FUNCTIONS
Table 4-3. Port Configuration
Port mode register (PM0, PM1, PM3, PM6, PM7, PM12)
Port register (P0 to P3, P6, P7, P12, P13)
Pull-up resistor option register (PU0, PU1, PU3, PU7, PU12)
Total: 32 (CMOS I/O: 19, CMOS input: 8, CMOS output: 1, N-ch open drain I/O: 4)
• Mask ROM version
Total: 23 (software control: 19, mask option specification: 4)
• Flash memory version: Total: 19
User's Manual U16227EJ2V0UD
Configuration
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