M30621ECGP MITSUBISHI [Mitsubishi Electric Semiconductor], M30621ECGP Datasheet - Page 22

• Manufacturer Part Number: M30621ECGP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Processor Mode
22
Figure 1.8.1. Processor mode register 0 and 1
Processor mode register 0 (Note)
Processor mode register 1 (Note 1)
b7
b7
0 0 0
b6
b6
0
b5
b5
0 0
b4
0
b4
b3
b3
b2
b2
0
b1
b1
b0
b0
0
Note: Set bit 1 of the protect register (address 000A
Note 1: Set bit 1 of the protect register (address 000A
Note 2: Be sure to set this bit to 0 except products whose RAM size and ROM size exceed
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be
Bit symbol
Reserved bit
Reserved bit
Bit symbol
Reserved bit
Reserved bit
PM13
PM17
PM01
PM03
PM00
values to this register.
Symbol
PM0
Symbol
PM1
this register.
15K bytes and 192K bytes respectively.
In using M30625MG/FG, a product having a RAM of more than 15K bytes and a
ROM of more than 192K bytes, set this bit to 1 at the beginning of user program.
Specify D0000
if PM13 is set to 0 at the time reset is revoked, for the reset vector table of user
program.
indeterminate.
Processor mode bit
Software reset bit
Wait bit
Internal reserved area
expansion bit (Note 2)
16
Address
Address
Bit name
Bit name
0004
0005
or a subsequent address, which becomes an internal ROM area
16
16
When reset
When reset
00000XX0
0: The same internal reserved
1: Expands the internal RAM area
0 : No wait state
1 : Wait state inserted
The device is reset when this bit
is set to “1”. The value of this bit
is “0” when read.
Must always be set to “0”
Must always be set to “0”
Must always be set to “0”
Must always be set to “0”
b1 b0
0 0: Single-chip mode
0 1: Inhibited
1 0: Inhibited
1 1: Inhibited
00
area as that of M16C/60 and
M16C/61 group
and internal ROM area to 23 K
bytes and to 256K bytes
respectively. (Note 2)
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
2
) to “1” when writing new
16
) to “1” when writing new values to
Function
Function
M16C / 62 Group (80-pin)
Mitsubishi microcomputers
R
R
W
W