C8051F130-GQR Silicon Laboratories Inc, C8051F130-GQR Datasheet - Page 140

• Manufacturer Part Number: C8051F130-GQR
• Description: IC 8051 MCU 128K FLASH 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F13xr

Specifications of C8051F130-GQR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 64
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Processor Series: C8051F1x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 8.25 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Clock Frequency: 100 MHz
• Number Of Programmable I/os: 64
• Number Of Timers: 5
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F120DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
On exit from the PCA interrupt service routine, the CIP-51 will return to the ADC2 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 ADC2 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 Port 5 before the ADC2 interrupt occurred. See Figure 11.8
below.
140
Figure 11.7. SFR Page Stack Upon PCA Interrupt Occurring During an ADC2 ISR
Figure 11.8. SFR Page Stack Upon Return From PCA Interrupt
SFRNEXT
SFRNEXT
SFRLAST
SFRLAST
SFRPAGE
popped to
SFRPAGE
SFRNEXT
pushed to
SFRNEXT
popped to
pushed to
stack on return from
SFRPAGE on PCA
pushed on stack in
popped off of the
SFR Page 0x00
(ADC2)
(Port 5)
SFR Page 0x00
(ADC2)
(Port 5)
Automatically
Automatically
(PCA)
0x0F
0x02
0x0F
0x00
0x02
interrupt
interrupt
Rev. 1.4
SFRPAGE
SFRNEXT
SFRPAGE
SFRLAST
SFRNEXT
SFRLAST