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M306V5ME-XXXSP Datasheet(PDF) 23 Page - Mitsubishi Electric Semiconductor

Part No. M306V5ME-XXXSP
Description  SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
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Maker  MITSUBISHI [Mitsubishi Electric Semiconductor]
Homepage  http://www.mitsubishichips.com
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M306V5ME-XXXSP Datasheet(HTML) 23 Page - Mitsubishi Electric Semiconductor

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M306V5ME-XXXSP
M306V5EESP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
23
Rev. 1.0
2.4 Single-chip Mode
This microcomputer supports single-chip mode only.
In single-chip mode, only internal memory space (SFR, OSD RAM, internal RAM, and internal ROM) can
be accessed. Ports P0, P2 to P10 can be used as programmable I/O ports or as I/O ports for the internal
peripheral functions.
Figure 2.4.1 shows the processor mode register 0 and Figure 2.4.2 shows the processor mode register 1.
Figure 2.4.3 shows the memory map.
Figure 2.4.1 Processor mode register 0
Processor mode register 0 (Note)
SymbolAddressWhen reset
PM0000416
0016
Bit nameFunction
Bit symbol
W
R
b7b6b5b4b3b2b1b0
0 0: Single-chip mode
0 1: Inhibited
1 0: Inhibited
1 1: Inhibited
b1 b0
PM03
PM01
PM00
Processor mode bit
Software reset bit
The device is reset when this bit is set
to “1”. The value of this bit is “0” when
read.
Note : Set bit 1 of the protect register (address 000A16) to “1” when writing new
values to this register.
Reserved bit
Must always be set to “0”
Reserved bits
Must always be set to “0”
00 00
0 00
Figure 2.4.2 Processor mode register 1
Processor mode register 1 (Note 1)
SymbolAddressWhen reset
PM1000516
00000X002
Bit nameFunction
Bit symbol
W
R
b7b6b5b4b3b2b1b0
Nothing is assigned.
In an attempt to write to this bit, write “0.” The value, if read, turns out to be
indeterminate.
Reserved bit
Must always be set to “0”
0
Notes 1: Set bit 1 of the protect register (address 000A16) to “1” when writing new
values to this register.
2: As this bit becomes “0” at reset, must always be set to “1” after reset
release.
PM17
Wait bit
0 : No wait state
1 : Wait state inserted
Reserved bits
Must always be set to “0”
00
0
0
Reserved bit (Note 2)
Must always be set to “1”
1


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