RL78/D1A User's Manual: Hardware - Renesas

Under development
Preliminary document
Specifications in this document are tentative and subject to change.
RL78/D1A CHAPTER 2 PIN FUNCTIONS
2.2 Description of Pin Function
Remark The pins mounted depend on the product. See 1.4 Pin Configuration (Top View) and 2.1 Pin Function
List.
2.2.1 P00 to P07 (port 0)
48-pin products: P00 to P01 function as a 2-bit I/O port.
64-pin products: P00 to P05 and P07 function as a 7-bit I/O port.
80-pin products: P00 to P07 function as an 8-bit I/O port.
100-pin products: P00 to P07 function as an 8-bit I/O port.
These pins also function as timer I/O, serial interface data I/O, and segment signal outputs for the LCD controller/driver.
Input to the P01 pin can be specified through a normal Schmitt3 input buffer or a Schmitt1 input buffer in 1-bit units,
using port input mode register 0 (PIM0).
The following operation modes can be specified in 1-bit units.
(1) Port mode
48-pin products: P00 to P01 function as a 2-bit I/O port.
64-pin products: P00 to P05 and P07 function as a 7-bit I/O port.
80-pin products: P00 to P07 function as an 8-bit I/O port.
100-pin products: P00 to P07 function as an 8-bit I/O port.
P00 to P07 can be set to input or output port in 1-bit units using port mode register 0 (PM0). Use of an on-chip pull-up
resistor can be specified by pull-up resistor option register 0 (PU0).
(2) Control mode
P00 to P07 function as timer I/O, serial interface data I/O, and segment signal outputs for the LCD controller/driver.
(a) TI00 (P00) to TI07 (P07) and TI12 (P02) to TI17 (P07)
These are the external count clock input /capture trigger to 16-bit timer 00 to 07, and 12 to 17.
(b) TO00 (P00) to TO07 (P07) and TO12 (P02) to TO17 (P07)
These are the timer output pins of 16-bit timers 00 to 07, and 12 to 17.
(c) CTxD0 (P00)
This is a CAN serial transmit data output pin of aFCAN0.
(d) CRxD0 (P01)
This is a CAN serial receive data input pin of aFCAN0.
(e) SO00 (P02)
This is a serial data output pin of serial interface CSI00.
(f) SI00 (P03)
This is a serial data input pin of serial interface CSI00.
(g) SCK00 (P04)
This is a serial clock I/O pin of serial interface CSI00.
R01UH0317EJ0004 Rev. 0.04 39
Feb. 22, 2013