AT83C5111 datasheet(32/86 Pages) ATMEL

32 / 86 page

AT8xC5111

4190A–8051–11/02

Table 7. PCON Register

PCON - Power Control Register (87h)

Reset value = 0001 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.

7654

3210

SMOD1

SMOD0

RSTD

POF

GF1

GF0

IDL

Bit

Number

Bit

Mnemonic Description

7SMOD1

Serial Port Mode bit 1 for UART

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

6SMOD0

Serial Port Mode bit 0 for UART

Clear to select SM0 bit in SCON register.

Set to to select FE bit in SCON register.

5RSTD

Reset Detector Disable Bit

Clear to disable PFD.

Set to enable PFD.

4POF

Power-off Flag

Clear to recognize next reset type.

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

by software.

3GF1

General-purpose Flag

Cleared by user for general purpose usage.

Set by user for general purpose usage.

2GF0

General-purpose Flag

Cleared by user for general purpose usage.

Set by user for general purpose usage.

1PD

Power-down Mode bit

Cleared by hardware when reset occurs.

Set to enter Power-down mode.

0IDL

Idle Mode bit

Clear by hardware when interrupt or reset occurs.

Set to enter idle mode.

AT83C5111 데이터시트(PDF) 32 Page - ATMEL Corporation

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