upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 51

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

(7)
P90 to P915 (Port 9) … Bi-directional I/O
Port 9 is a 16-bit I/O port for which input and output can be set in 1-bit units.
In addition to I/O port pins, P90 to P915 can also be used as serial interface I/O, timer/counter I/O,
external interrupt request inputs, clock output, and on chip debug function in the control mode. The
port/control mode can be selected for each bit, and the pin’s valid edge for P913 to P915 is speci-
fied by the INTR9H and INTF9H registers.
An on-chip pull-up and Pull-down resistor can be specified for use in 1-bit units using pull-up/ pull-
down resistor option register 9 (PU9, PD9).
(a) Port mode
P90 to P915 can be set to input or output in 1-bit units using port mode register 9 (PM9).
(b) Control mode
P90 to P915 can be set to control modes in 1-bit units using port mode control register 9 (PMC9),
port mode function register 9 (PFC9) and port mode function expand register 9 (PFCE9).
• SIB1 (serial input)...input
• SOB1 (serial output)...output
• SCKB1, SCK30 (serial clock) … Bi-directional I/O
• CS300 to CS303 (Chip select) … Output
• RXDA1 (receive data) … Input
• TXDA1 (transmit data) … Output
• TIP20, TIP21 (timer input) … Input
• TOP20, TOP21 (timer output) … Output
• PCL (clock output) … Output
• INTP4 to INTP6 (interrupt request from peripherals) … Input
• DDI, DCK,DMS, DDO, DRST.
These are the serial receive data input pins for CSIB1.
These are the serial transmit data input pins for CSIB1.
This is the serial clock I/O pin for CSIB1 and CSI30
These are the Chip select pins for CSI30
This is the serial receive data input pins for UARTA1.
This is the serial transmit data output pin for UARTA1.
These are the external count clock input pins for timer TMP2.
These are the pulse signal output pins for timer TMP2.
This is the clock output pin.
These are external interrupt request input pins.
These are signals for the N-Wire interface (JTAG).
User’s Manual U16702EE3V2UD00
Chapter 2 Pin Functions
51