C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 198

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Special Function Register PCON1 (Mapped Address 88 H)
Symbol
EWPD
WS
–
Semiconductor Group
Bit No.
88 H
MSB
EWPD
7
Function
External wake-up from power down enable bit
Setting EWPD before entering power down mode, enables the external wake-
up from power down mode capability (more details see section 9.4.2).
Wake-up from power-down source select
WS = 0 : wake-up via pin P3.2/INT0.
WS = 1 : wake-up via pin P4.1/RXDC.
Pin P3.2/INT0 is selected as wake-up source after reset.
Reserved bits for future use. Read by CPU returns undefined values.
6
–
5
–
WS
4
9-2
3
–
2
–
Reset Value : 0XX0XXXX B
Power Saving Modes
1
–
C505 / C505C
0
–
LSB
1997-08-01
PCON1