C8051F360 datasheet(92/289 Pages) SILABS

Part #	C8051F360

Description	Mixed Signal ISP Flash MCU Family

PDF	289 Pages

Scroll/Zoom	100%

Manufacturer	SILABS [Silicon Laboratories]

Direct Link	http://www.silabs.com

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

Rev. 1.1

On exit from the PCA interrupt service routine, the CIP-51 will return to the ADC0 Window Comparator

ISR. On execution of the RETI instruction, SFR Page 0x00 used to access the PCA registers will be auto-

matically popped off of the SFR Page Stack, and the contents of the SFRNEXT register will be moved to

the SFRPAGE register. Software in the ADC0 ISR can continue to access SFR’s as it did prior to the PCA

interrupt. Likewise, the contents of SFRLAST are moved to the SFRNEXT register. Recall this was the

SFR Page value 0x0F being used to access OSCICN before the ADC0 interrupt occurred. See Figure 9.7

below.

Figure 9.7. SFR Page Stack Upon Return From PCA Interrupt

0x00

(ADC0)

0x0F

(OSCICN)

SFRPAGE

SFRLAST

SFRNEXT

SFR Page 0x00

Automatically

popped off of the

stack on return from

interrupt

SFRNEXT

popped to

SFRPAGE

SFRLAST

popped to

SFRNEXT

C8051F360 Datasheet(PDF) 92 Page - Silicon Laboratories