HD64F2357VF13 Datasheet, PDF (340/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

9.9.3 Pin Functions
Mode 7 (On-Chip ROM Version Only): In mode 7, port B pins function as I/O ports. Input or output can be specified
for each pin on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while
clearing the bit to 0 makes the pin an input port.
Port B pin functions in mode 7 are shown in figure 9-12.
Port B
PB₇ (I/O)
PB₆ (I/O)
PB₅ (I/O)
PB₄ (I/O)
PB₃ (I/O)
PB₂ (I/O)
PB₁ (I/O)
PB₀ (I/O)
Figure 9-12 Port B Pin Functions (Mode 7)
Mode 6 (On-Chip ROM Version Only): In mode 6, port B pins function as address outputs or input ports. Input or
output can be specified on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an
address output, while clearing the bit to 0 makes the pin an input port.
Port B pin functions in mode 6 are shown in figure 9-13.
Port B
When PBDDR = 1
A₁₅ (output)
A₁₄ (output)
A₁₃ (output)
A₁₂ (output)
A₁₁ (output)
A₁₀ (output)
A₉ (output)
A₈ (output)
When PBDDR = 0
PB₇ (input)
PB₆ (input)
PB₅ (input)
PB₄ (input)
PB₃ (input)
PB₂ (input)
PB₁ (input)
PB₀ (input)
Figure 9-13 Port B Pin Functions (Mode 6)
Rev.6.00 Oct.28.2004 page 310 of 1016
REJ09B0138-0600H