USER'S GUIDE

DS5001/DS5002 SERIES MCON REGISTER Figure 4±8

PA3

PA2

PA1

PA0

RG1

PES

PM

±±±

Bit Description:

MCON.7±4:

PA3±0

 

Partition Address. When PM=0, this address specifies the boundary

 

between program and data memory in a continuous space.

Initialization:

Unaffected by watchdog, external, or power±up resets. Set to 1111B on a

 

No VLI reset.

Read Access:

Can be read normally at any time.

Write Access:

Timed Access Protected. Also, cannot be written by the application soft-

 

ware if set to 0000B by the serial loader. If a 0000B is written via the serial

 

loader and the security lock is set, the Partition will become 1111B. The

 

same will occur if write access is available and application software writes a

 

0000B. In addition, these bits will be set to 1111B if security lock is cleared.

MCON.3:

RG1

 

One of two bits that determine the range of program space. RG0 is located

 

in the RPCTL register.

Initialization:

Unaffected by watchdog, external, or power±up resets. Set to 1 on a No VLI

 

reset or a clearing of the security lock.

Read Access:

Can be read at any time.

Write Access:

Cannot be modified by the application software. Can only be written during

 

program load.

MCON.2:

PES

 

Peripheral Enable Select. When this bit is set, the data space is controlled

 

by PE1 ± PE4. Peripherals are memory±mapped in 16K blocks, and are

 

accessed by MOVX instructions.

Initialization:

Cleared by all resets.

Read Access:

Can be read at any time.

Write Access:

Can be written at any time.

MCON.1:

PM

 

Partition Mode. When PM=0, a partitionable, continuous memory map is

 

invoked. When PM=1, one of four fixed allocations is used.

Initialization:

Unaffected by watchdog, external, or power±up reset. Cleared on a No VLI

 

reset.

Read Access:

Can be read at any time.

Write Access:

Cannot be written by the application software. Can only be modified during

 

program load.

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Mitsubishi DS907x SIP manual DS5001/DS5002 Series Mcon Register ±8, PA3 PA2 PA1 PA0 RG1 PES, MCON.3 RG1, MCON.2 PES, MCON.1