Z51F0410 Datasheet, PDF (144/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
PCON
87H
R/W
00H
Power Control Register
5.5.2 Power Down Operation Register description
The Power Down Operation Register consists of the Power Control Register (PCON).
5.5.3 Register description for Power Down Operation
PCON (Power Control Register) : 87H
7
6
5
4
3
2
1
0
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value : 00H
IDLE Mode
01H IDLE mode enable
STOP1, 2 Mode
03H STOP1, 2 mode enable
Note)
1. To enter IDLE mode, PCON must be set to ‘01H’.
2. To STOP1,2 mode, PCON must be set to ‘03H’.
(In STOP1,2 mode, PCON register is cleared automatically by interrupt or reset)
3. When PCON is set to ‘03H’, if SCCR[7] is set to ‘1’, it enters the STOP1 mode. if SCCR[7] is
cleared to ‘0’, it enters the STOP2 mode
4. The different thing in STOP 1,2 is only clock operation of internal 128kHz-OSC during STOP
mode operating.
PS029502-0212
PRELIMINARY
141