TS80C31X2-EMIBD View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

TS80C31X2-EMIBD

8-bit CMOS Microcontroller ROMless

Atmel Corporation 

Table 6. PCON Register

TS80C31X2

PCON - Power Control Register (87h)

7

6

5

SMOD1

SMOD0

-

4

3

2

1

0

POF

GF1

GF0

PD

IDL

Bit

Number

7

6

5

4

3

2

1

0

Bit

Mnemonic

Description

SMOD1

Serial port Mode bit 1

Set to select double baud rate in mode 1, 2 or 3.

SMOD0

Serial port Mode bit 0

Clear to select SM0 bit in SCON register.

Set to to select FE bit in SCON register.

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

Power-Off Flag

POF

Clear to recognize next reset type.

Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set by software.

General purpose Flag

GF1

Cleared by user for general purpose usage.

Set by user for general purpose usage.

General purpose Flag

GF0

Cleared by user for general purpose usage.

Set by user for general purpose usage.

Power-Down mode bit

PD

Cleared by hardware when reset occurs.

Set to enter power-down mode.

Idle mode bit

IDL

Clear by hardware when interrupt or reset occurs.

Set to enter idle mode.

Reset Value = 00X1 0000b

Not bit addressable

Power-off flag reset value will be 1 only after a power on (cold reset). A warm reset doesn’t affect the value of this bit.

Rev. C - 15 January, 2001

17

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