C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 114

• Manufacturer Part Number: C8051F581-IMR
• Description: 8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
• Manufacturer: Silicon Labs

Specifications of C8051F581-IMR

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

C8051F58x/F59x
SFR Definition 13.2. SFRPAGE: SFR Page
SFR Address = 0xA7; SFR Page = All Pages
114
7:0
Bit
Name
Reset
Type
Bit
SFRPAGE[7:0]
Name
7
0
SFR Page Bits.
Represents the SFR Page the C8051 core uses when reading or modifying
SFRs.
Write: Sets the SFR Page.
Read: Byte is the SFR page the C8051 core is using.
When enabled in the SFR Page Control Register (SFR0CN), the C8051 core will
automatically switch to the SFR Page that contains the SFRs of the correspond-
ing peripheral/function that caused the interrupt, and return to the previous SFR
page upon return from interrupt (unless SFR Stack was altered before a return-
ing from the interrupt). SFRPAGE is the top byte of the SFR Page Stack, and
push/pop events of this stack are caused by interrupts (and not by reading/writ-
ing to the SFRPAGE register)
6
0
5
0
Rev. 1.2
SFRPAGE[7:0]
4
0
R/W
Function
3
0
2
0
1
0
0
0