m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 31

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

Processor Mode
Processor Mode
Figure 1.7.1. Processor mode register 0 and 1
This device functions in single-chip mode only. In single-chip mode, only internal memory space (SFR,
internal RAM, and internal ROM) can be accessed. Ports P1_5 to P1_7, P6, P7, P8, P9_0 to P9_3 and P10
can be used as programmable I/O ports or as I/O ports for the internal peripheral functions. Figure 1.7.1
shows the processor mode registers 0 and 1. Figure 1.7.2 shows the processor mode register 2.
Processor mode register 0 (Note)
Processor mode register 1 (Note 1)
b7
0
b7
Note 1: Set bit 1 of the protect register (address 000A
Note 2: This bit can only be set to 1.
Note 3: When EW entry bit (FMR01) =1, this bit is automatically set to 1 during that time.
Note 4: To access the two 2K byte data blocks in address range F800
b6
0
b6
0
b5
b5
0
0 0
Preliminary Specifications Rev. 0.9
b4
b4
0
Specifications in this manual are tentative and subject to change.
b3
b3
1
b2
0
b2
b1
b1
0
0
b0
0
b0
Note: Set bit 1 of the protect register (address 000A
Bit symbol
Bit symbol
Reserved bit
Reserved bit
Reserved bit
Reserved bit
PM12
PM17
PM10
Reserved Bit
Reserved Bit
PM03
values to this register.
Symbol
PM0
Symbol
PM1
Renesas Technology Corp.
Wait bit
Software reset bit
Watchdog timer function
select bit
Flash data block
access bit (Note 4)
Address
Address
Bit name
Bit name
0004
0005
16
) to 1 when writing new values to this register.
16
16
When reset
When reset
00001000
16
The device is reset when this bit is set
read.
Must always be set to "0".
Must always be set to "1".
Must always be set to 0 . The
value, if read, turns out to be
indeterminate.
0: Disabled
1: Enabled (Note 3)
Must always be set to "0".
0 : No wait state
1 : Wait state inserted
Must always be set to "0".
Must always be set to "0".
0 : Interrupt
1 : Reset (Note 2)
00
to FFFF
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
2
) to 1 when writing new
16
, this bit must be set to 1.
Function
.
Function
M16C/26 Group
R
R
W
W
25