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T89C5115 Datasheet(PDF) 54 Page - ATMEL Corporation

No. de Pieza. T89C5115
Descripción  Low Pin Countl 8-bit Microcontroller with A/D Converter and 16 KBytes Flash Memory
Descarga  113 Pages
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Fabricante  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
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T89C5115 Datasheet(HTML) 54 Page - ATMEL Corporation

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54
AT89C5115
4128F–8051–05/06
Table 36. PCON Register
PCON (S:87h)
Power Control Register
Reset Value = 00X1 0000b
Not bit addressable
76
54
32
1
0
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit
Number
Bit
Mnemonic
Description
7SMOD1
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3.
6SMOD0
Serial port Mode bit 0
Clear to select SM0 bit in SCON register.
Set to select FE bit in SCON register.
5-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4POF
Power-off Flag
Clear to recognize next reset type.
Set by hardware when V
CC 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.


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