upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 143

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

4.3.9 Port 9
Port 9 is a 16-bit port for which I/O settings can be controlled in 1-bit units.
(1)
Port 9 functions
• 16-bit I/O port
• Port input/output specifiable in 1-bit units by port mode register 9 (PM9)
• Port mode/control mode specifiable in 1-bit units by port mode control register 9 (PMC9)
• Control mode 1, 2, 3 and 4 specifiable in 1-bit units by port function control register 9 (PFC9,
• On-chip pull-up resistor specifiable in 1-bit units by pull-up resistor option register 9 (PU9)
• On-chip pull-down resistor specifiable in 1-bit units by pull-down resistor option register 9 (PD9)
• Valid edge of external interrupts (alternate function) specifiable in 1-bit units.
See Table 4-8, “Port Type,” on page 170 for alternate functions.
PFCE9)
Specification done with external interrupt falling edge specification register 9H (INTF9H) and
external interrupt rising edge specification register 9H (INTR9H).
User’s Manual U16702EE3V2UD00
Chapter 4 Port Functions
143