AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 50

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Registers
50
AT8xC51SND1C
Table 59. PCON Register
PCON (S:87h) – Power Configuration Register
Reset Value = XXXX 0000b
Number
7 - 4
Bit
7
-
3
2
1
0
Mnemonic Description
GF1
GF0
Bit
IDL
PD
6
-
-
Reserved
The value read from these bits is indeterminate. Do not set these bits.
General-purpose flag 1
One use is to indicate whether an interrupt occurred during normal operation or
during Idle mode.
General-purpose flag 0
One use is to indicate whether an interrupt occurred during normal operation or
during Idle mode.
Power-down Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Power-down mode.
If IDL and PD are both set, PD takes precedence.
Idle Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Idle mode.
If IDL and PD are both set, PD takes precedence.
5
-
4
-
GF1
3
GF0
2
PD
1
4109E–8051–06/03
IDL
0