TMP93CS32F datasheet(66/180 Pages) TOSHIBA

66 / 180 page

TMP93CS32

2004-02-10

93CS32-64

(Example of external memory connection)

Figure 3.6.2 is an example in which an external memory is connected to the TMP93CS32.

In this example, 128-Kbyte ROM is connected using 16 bits bus, and 256-Kbyte RAM using

16-bit bus.

Figure 3.6.2 Example of External Memory Connection (ROM and RAM = 16 Bits)

The TMP93CS32 has built-in ROM and RAM. When ROM and RAM have insufficient

capacity, it is possible to connect an external memory as the example of the external

memory connection. In this example, the memory configuration is as follows.

Memory

Memory Size

Address

Data Bus

Internal

64 Kbytes

FF0000H to FFFFFFH

16 bits

ROM

External

128 Kbytes

400000H to 41FFFFH

16 bits

Internal

2 Kbytes

000080H to 00087FH

16 bits

SRAM

External

256 Kbytes

800000H to 83FFFFH

16 bits

TMP93CS32

D8 to D15

D0 to D7

R/ W

Upper byte

D0 to D7

R/ W

Lower byte

Latch

× 16

Decorder

Address bus

ROMCS

RAMCS

ROM (64 Kbits

× 16)

RAM (128 Kbits

× 8)

RAM (128 Kbits

× 8)

Upper address

AD8 to AD15

AD0 to AD7

ALE

HWR

AM8/ AM16

TMP93CS32F 데이터시트(PDF) 66 Page - Toshiba Semiconductor

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