C8051F997-GUR Silicon Labs, C8051F997-GUR Datasheet - Page 199

• Manufacturer Part Number: C8051F997-GUR
• Description: 8-bit Microcontrollers - MCU 8kB 14-CH CDC
• Manufacturer: Silicon Labs

Specifications of C8051F997-GUR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

SFR Definition 20.1. RTC0KEY: SmaRTClock Lock and Key
SFR Page = 0x0; SFR Address = 0xAE
Name
Reset
Type
7:0
Bit
Bit
RTC0ST
Name
7
0
SmaRTClock Interface Status.
Provides lock status when read.
6
0
Read:
0x02: SmaRTClock Interface is unlocked.
Write:
Writes to RTC0KEY have no effect.
5
0
Rev. 1.1
4
0
RTC0ST[7:0]
R/W
C8051F99x-C8051F98x
Function
3
0
2
0
1
0
0
0
199