參數(shù)資料
型號(hào)： M30302M8L-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, PLASTIC, QFP-100
文件頁數(shù)： 81/165頁
文件大?。?/td> 2188K
代理商： M30302M8L-XXXFP
Processor Mode
22
Mitsubishi microcomputers
M16C / 30L Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Figure 1.7.1. Processor mode register 0 and 1
Processor mode register 0 (Note 1)
Symbol
Address
When reset
PM0
000416
0016 (Note 2)
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
0 0: Single-chip mode
0 1: Memory expansion mode
1 0: Must not be set
1 1: Microprocessor mode
b1 b0
PM03
PM01
PM00
Processor mode bit
PM02
R/W mode select bit
0 : RD,BHE,WR
1 : RD,WRH,WRL
Software reset bit
The device is reset when this bit is set
to “1”. The value of this bit is “0” when
read.
PM04
0 0 : Multiplexed bus is not used
0 1 : Allocated to CS2 space
1 0 : Allocated to CS1 space
1 1 : Allocated to entire space (Note4)
b5 b4
Multiplexed bus space
select bit
PM05
PM06
PM07
Port P40 to P43 function
select bit (Note 3)
0 : Address output
1 : Port function
(Address is not output)
BCLK output disable bit
0 : BCLK is output
1 : BCLK is not output
(Pin is left floating)
Note 1: Set bit 1 of the protect register (address 000A16) to “1” when writing new
values to this register.
Note 2: If the VCC voltage is applied to the CNVSS, the value of this register when
reset is 0316. (PM00 and PM01 both are set to “1”.)
Note 3: Valid in microprocessor and memory expansion modes.
Note 4: If the entire space is of multiplexed bus in memory expansion mode, choose an 8-
bit width.The processor operates using the separate bus after reset is revoked, so the entire
space multiplexed bus cannot be chosen in microprocessor mode.
P31 to P37 become a port if the entire space multiplexed bus is chosen, so only 256 bytes can
be used in each chip select.
Processor mode register 1 (Note 1)
Symbol
Address
When reset
PM1
000516
000000X02
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
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
Note 1: Set bit 1 of the protect register (address 000A16) to “1” when writing new values to this register.
Note 2: This bit can only be set to “1”.
PM17
Wait bit
0 : No wait state
1 : Wait state inserted
0
Reserved bit
Must always be set to “0”
0 : Interrupt
1 : Reset (Note 2)
Watchdog timer function
select bit
PM12
(Note 2)
Reserved bit
Must always be set to “0”
0
00
Reserved bit
Must always be set to “0”
Reserved bit
Must always be set to “0”
Figure 1.7.1 shows the processor mode register 0 and 1.
Figure 1.7.2 shows the memory maps in each processor modes.
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