HD6413003RF Datasheet, PDF (81/715 Pages) Renesas Technology Corp – Microcontroller (MCU)

3.5 Pin Functions in Each Operating Mode
The pin functions of ports 4 and 5 vary depending on the operating mode. Table 3-3 indicates their
functions in each operating mode.
Table 3-3 Pin Functions in Each Mode
Port
Mode 1
Mode 2
Mode 3
Mode 4
Port 4
P4₇ to P4₀*
D₇ to D₀*
P4₇ to P4₀*
D₇ to D₀*
Port 5
P5₇ to P5₄
P5₇ to P5₄
A₂₃ to A₂₀
A₂₃ to A₂₀
Note: * Initial state. The bus mode can be switched by settings in ABWCR.
These pins function as P4₇ to P4₀ in 8-bit bus mode, and as D₇ to D₀
in 16-bit bus mode.
3.6 Memory Map in Each Operating Mode
Figure 3-1 shows a memory map for modes 1 to 4. The address space is divided into eight areas.
The initial bus mode differs between modes 1 and 2, and also between modes 3 and 4. The address
locations of the on-chip RAM and on-chip registers differ between the 1-Mbyte modes (modes 1
and 2) and 16-Mbyte modes (modes 3 and 4). The address range specifiable by the CPU in its 8-
and 16-bit absolute addressing modes (@aa:8 and @aa:16) also differs.
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