C8051F989-GUR Silicon Labs, C8051F989-GUR Datasheet - Page 199
C8051F989-GUR
Manufacturer Part Number
C8051F989-GUR
Description
8-bit Microcontrollers - MCU 4kB 512B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F986-GUR.pdf
(322 pages)
Specifications of C8051F989-GUR
Rohs
yes
Core
8051
Data Bus Width
8 bit
Processor Series
C8051
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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
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