C8051F540-TB Silicon Laboratories Inc, C8051F540-TB Datasheet - Page 94
C8051F540-TB
Manufacturer Part Number
C8051F540-TB
Description
BOARD PROTOTYPE W/C8051F540
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F540-TB
Contents
Board
Processor To Be Evaluated
C8051F54x
Processor Series
C8051F54x
Interface Type
USB
Operating Supply Voltage
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F54x
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1672
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C8051F54x
On the execution of the RETI instruction in the SPI0 ISR, the value in SFRPAGE register is overwritten
with the contents of SFRNEXT. The CIP-51 may now access the SMB0ADR register as it did prior to the
interrupts occurring. See Figure 12.6.
94
SFRPAGE
SFRNEXT
SFRNEXT
SFRLAST
popped to
popped to
Figure 12.5. SFR Page Stack Upon Return From PCA Interrupt
(SMB0ADR)
stack on return from
popped off of the
SFR Page 0x00
(SPI0)
Automatically
0x0F
0x00
interrupt
Rev. 1.1
SFRPAGE
SFRNEXT
SFRLAST
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