A96G140/A96G148/A96A148 User’s manual
17. Power down operation
221
PCON (Power Control Register): 87H
7
6
5
4
3
2
1
0
PCON7
–
–
–
PCON3
PCON2
PCON1
PCON0
R/W
–
–
–
R/W
R/W
R/W
R/W
Initial value: 00H
PCON[7:0]
Power Control
01H
IDLE mode enable
03H
STOP mode enable
Other Values Normal operation
NOTES:
1.
To enter into IDLE mode, PCON must be set to ‘01H’.
2.
To enter into STOP mode, PCON
must be set to ‘03H’.
3.
The PCON register is automatically cleared by a release signal in STOP/IDLE mode.
4.
Three or more NOP instructions must immediately follow the instruction that make the device enter
into STOP/IDLE mode. Refer to the following examples.
Example 1
Example 2
MOV
PCON, #01H
; IDLE mode
NOP
NOP
NOP
.
.
.
MOV
PCON, #03H
; STOP mode
NOP
NOP
NOP
.
.
.