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Vancouver Design Center
Interfacing to the NEC V832 Microprocessor S1D13505
Issue Date: 01/02/05 X23A-G-012-02
4.4 Memory Mapping and Aliasing

The CSn line selected determines the address range to be reserved for the S1D13505. The

table below summarizes the S1D13505 address mapping.

Each address range is 16M bytes, therefore, the S1D13505 is aliased four times over the

address range.

Table 4-3: NEC V832 IO Address Range For Each CSn Line

CSn Line NEC V832 IO Address S1D13505 Function
CS30300 0000h
to
03FF FFFFh
0300 0000h Registers
0320 0000h Display buffer (2M bytes)
CS4 0400 0000h
to
04FF FFFFh
0400 0000h Registers
0420 0000h Display buffer (2M bytes)
CS5 0500 0000h
to
05FF FFFFh
0500 0000h Registers
0520 0000h Display buffer (2M bytes)
CS6 0600 0000h
to
06FF FFFFh
0600 0000h Registers
0620 0000h Display buffer (2M bytes)