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TMP93CS44 датащи(PDF) 81 Page - Toshiba Semiconductor

номер детали TMP93CS44
подробное описание детали  CMOS 16-Bit Microcontroller
PDF  224 Pages
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производитель  TOSHIBA [Toshiba Semiconductor]
домашняя страница  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMP93CS44 датащи(HTML) 81 Page - Toshiba Semiconductor

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TMP93CS44/S45
2004-02-10
93CS44-79
(3) Example of usage-3
Figure 3.6.4 is an example in which an external memory is connected to the
TMP93CS44. In this example, ROM 128 Kbytes are connected using 16-bit bus, and
RAM 256 Kbytes are connected using 16-bit bus.
Figure 3.6.4 Example of External Memory Connection (ROM and RAM
= 16 bits)
The TMP93CS44 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
TMP93CS44
D
Q
LE
D8 to D15
D0 to D7
OE
CS
I/O1 to I/O8
OE
R/ W
CS
Upper byte
I/O1 to I/O8
OE
R/ W
CS
Lower byte
Latch
× 16
Decoder
Address bus
ROMCS
RAMCS
ROM (128 Kbytes
× 16)
RAM (128 Kbytes
× 8)
RAM (128 Kbytes
× 8)
Upper
address
AD8 to AD15
AD0 to AD7
ALE
RD
HWR
WR
AM8/ AM16
EA



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