r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 904

Manufacturer Part Number

r5f71374an80fpv

32-bit Risc Microcomputer Superh?? Risc Engine Family

Manufacturer

Renesas Electronics Corporation.

Manufacturer

Part Number:

R5F71374AN80FPV

Manufacturer:

Section 21 I/O Ports

The port F data register L (PFDRL) is a 16-bit read-only register that stores port F data. Bits

PF15DR to PF8DR and PF3DR to PF0DR correspond to pins PF15 to PF8 and PF3 to PF0,

respectively (multiplexed functions omitted here) in the SH7136. Bits PF15DR to PF0DR

correspond to pins PF15 to PF0, respectively (multiplexed functions omitted here) in the SH7137.

Any value written into these bits is ignored, and there is no effect on the state of the pins. When

any of the bits are read, the pin state rather than the bit value is read directly. However, when an

A/D converter analog input is being sampled, values of 1 are read out. Table 21.10 summarizes

port F data register L read/write operations.

• PFDRL (SH7136)

Initial value:

Rev. 1.00 Sep. 21, 2007 Page 878 of 1124

REJ09B0402-0100

Port F Data Register L (PFDRL)

See table 21.10.

These bits are always read as 0. The write value should

always be 0.

See table 21.10.