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TMPR3916 датащи(PDF) 73 Page - Toshiba Semiconductor

номер детали TMPR3916
подробное описание детали  32-Bit TX System RISC TX39 Family TMPR3916
PDF  225 Pages
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производитель  TOSHIBA [Toshiba Semiconductor]
домашняя страница  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR3916 датащи(HTML) 73 Page - Toshiba Semiconductor

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Chapter 2 Memory Controller (MC)
Preliminary
2-24
Bit
Name
Function
Reset
Value
R/W
11:8
RCS
Channel Size
Designates the memory size to be assigned.
0000 = 1 M byte 0110: 64 M bytes
0001 = 2 M bytes 0111: 128 M bytes
0010 = 4 M bytes 1000: 256 M bytes
0011 = 8 M bytes 1001: 512 M bytes
0100 = 16 M bytes 1010: 1 G bytes
0101 = 32 M bytes 1011-1111: Reserved
In 16-bit mode the maximum channel size allowed is 512M Bytes.
0000
R/W
7
RBS
Bus Size
Sets up the memory bus width of Channel 2.
0 = 32-bit bus size
1 = 16-bit bus size
0
R/W
6
Wired to zero
0R
5
RBC
Byte Enable Control
This bit determines whether the Byte Enable signals (BE[3:0]) are
asserted on read and write accessed or only on write accesses.
0 = Byte Enables active on read and write accesses
1 = Byte Enables active only on write accesses
0
R/W
4
Wired to zero
0R
3
RME
Master Enable
Enables channel.
0 = Channel is disabled
1 = Channel is enabled
0
R/W
2:0
RSHT
Setup/Hold Wait Time
Selects the number of wait states between address and chip enable
signal, chip select signal and write enable/output enable signal.
000 = Disabled
001 = 1 wait
010 = 2 wait
011 = 3 wait
:
:
111 = 7 wait
Burst access and Page Mode are not allowed if this bit field is non-
zero.
000
R/W



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