M16CSLASH29 datasheet(68/499 Pages) RENESAS

68 / 499 page

6. Processor Mode

page 44

Processor Mode Register 1 (1)

Symbol

Address

After Reset

PM1

000516

000010002

Bit Name

Function

Bit Symbol

b7 b6 b5 b4 b3 b2 b1 b0

Flash data block access

bit (2)

0: Disabled

1: Enabled (3)

PM10

PM17

Wait bit (5)

0 : No wait state

1 : Wait state (1 wait)

0 : Watchdog timer interrupt

1 : Watchdog timer reset (4)

Watchdog timer function

select bit

PM12

NOTES:

1. Rewrite the PM1 register after the PRC1 bit in the PRCR register is set to 1 (write enable).

2. To access the two 2K-byte data spaces in data block A and data block B, set the PM10 bit to 1. The PM10

bit is not available in mask version.

3. When the FMR01 bit in the FMR0 register is set to 1 (enables CPU rewrite mode), the PM10 bit is

automatically set to 1.

4. Set the PM12 bit to 1 by program. (Writing 0 by program has no effect)

5. When the PM17 bit is set to 1 (wait state), one wait is inserted when accessing the internal RAM or the

internal ROM.

Set to 0

(b1)

Reserved bit

Set to 1

Reserved bit

Set to 0

(b6-b4)

Reserved bit

(b3)

6. Processor Mode

The MCU supports single-chip mode only. Figures 6.1 and 6.2 show the associated registers.

Figure 6.1 PM0 Register and PM1 Register

Processor Mode Register 0 (1)

Symbol

Address

After Reset

PM0

000416

0016

Bit Name

Function

Bit Symbol

b7 b6 b5 b4 b3 b2 b1 b0

The MCU is reset when

this bit is set to 1. When read,

its content is 0.

Software reset bit

PM03

NOTES:

1. Set the PM0 register after the PRC1 bit in the PRCR register is set to 1 (write enable).

Set to 0

(b2-b0)

Reserved bit

Set to 0

(b7-b4)

Reserved bit

00 0

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