C8051F360 datasheet(94/288 Pages) SILABS

94 / 288 page

C8051F360/1/2/3/4/5/6/7/8/9

Rev. 1.0

SFR Definition 9.1. SFR0CN: SFR Page Control

Bits 7–1: RESERVED. Read = 0000000b. Must Write 0000000b.

Bit 0:

SFRPGEN: SFR Automatic Page Control Enable.

Upon interrupt, the C8051 Core will vector to the specified interrupt service routine and auto-

matically switch to SFR page 0. This bit is used to control this autopaging function.

0: SFR Automatic Paging disabled. C8051 core will not automatically change to SFR page

1: SFR Automatic Paging enabled. Upon interrupt, the C8051 will automatically switch to

SFR page 0.

SFR Page:

SFR Address:

0xE5

R/W

Reset Value

Reserved Reserved Reserved Reserved Reserved Reserved Reserved SFRPGEN 00000001

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

SFR Definition 9.2. SFRPAGE: SFR Page

Bits 7–0: SFR Page Bits: Byte Represents the SFR Page the C8051 MCU uses when reading or mod-

ifying SFR’s.

Write: Sets the SFR Page.

Read: Byte is the SFR page the C8051 MCU is using.

When enabled in the SFR Page Control Register (SFR0CN), the C8051 will automatically

switch to SFR Page 0x00 and return to the previous SFR page upon return from interrupt

(unless SFR Stack was altered before a returning 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/writing to the SFRPAGE register)

SFR Page:

SFR Address:

all pages

0xA7

R/W

Reset Value

00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

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