HD64336900G Datasheet, PDF (151/408 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

• P74/TMRIV pin
Register PCR7
Bit Name PCR74
Setting value 0
1
Pin Function
P74 input/TMRIV input pin
P74 output/TMRIV input pin
9.5 Port 8
Port 8 is a general I/O port also functioning as a timer W I/O pin. Each pin of the port 8 is shown
in figure 9.5. The register setting of the timer W has priority for functions of the P84/FTIOD,
P83/FTIOC, P82/FTIOB, and P81/FTIOA pins. The P80/FTCI pin also functions as a timer W
input port that is connected to the timer W regardless of the register setting of port 8.
Port 8
P84/FTIOD
P83/FTIOC
P82/FTIOB
P81/FTIOA
P80/FTCI
Figure 9.5 Port 8 Pin Configuration
Port 8 has the following registers.
• Port control register 8 (PCR8)
• Port data register 8 (PDR8)
Rev. 1.00, 11/03, page 123 of 376