C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 89

• Manufacturer Part Number: C8051F321
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Interrupt Source
Reset
External Interrupt 0
(/INT0)
Timer 0 Overflow
External Interrupt 1
(/INT1)
Timer 1 Overflow
UART0
Timer 2 Overflow
SPI0
SMB0
USB0
ADC0 Window Compare
ADC0 Conversion
Complete
Programmable Counter
Array
Comparator0
Comparator1
Timer 3 Overflow
VBUS Level
Interrupt
0x000B
0x001B
0x002B
0x003B
0x004B
0x005B
0x006B
0x007B
0x0000
0x0003
0x0013
0x0023
0x0033
0x0043
0x0053
0x0063
0x0073
Vector
Table 9.4. Interrupt Summary
Priority
Order
Top
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
Pending Flag
None
IE0 (TCON.1)
TF0 (TCON.5)
IE1 (TCON.3)
TF1 (TCON.7)
RI0 (SCON0.0)
TI0 (SCON0.1)
TF2H (TMR2CN.7)
TF2L (TMR2CN.6)
SPIF (SPI0CN.7)
WCOL (SPI0CN.6)
MODF (SPI0CN.5)
RXOVRN (SPI0CN.4)
SI (SMB0CN.0)
Special
AD0WINT
(ADC0CN.3)
AD0INT (ADC0CN.5)
CF (PCA0CN.7)
CCFn (PCA0CN.n)
CP0FIF (CPT0CN.4)
CP0RIF (CPT0CN.5)
CP1FIF (CPT1CN.4)
CP1RIF (CPT1CN.5)
TF3H (TMR3CN.7)
TF3L (TMR3CN.6)
N/A
Rev. 1.1
N/A N/A
N/A N/A
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
N
N
N
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
C8051F320/1
Enable
Flag
Always
Enabled
EX0 (IE.0) PX0 (IP.0)
ET0 (IE.1)
EX1 (IE.2) PX1 (IP.2)
ET1 (IE.3)
ES0 (IE.4)
ET2 (IE.5)
ESPI0
(IE.6)
ESMB0
(EIE1.0)
EUSB0
(EIE1.1)
EWADC0
(EIE1.2)
EADC0
(EIE1.3)
EPCA0
(EIE1.4)
ECP0
(EIE1.5)
ECP1
(EIE1.6)
ET3
(EIE1.7)
EVBUS
(EIE2.0)
Priority
Control
Always
Highest
PT0 (IP.1)
PT1 (IP.3)
PS0 (IP.4)
PT2 (IP.5)
PSPI0
(IP.6)
PSMB0
(EIP1.0)
PUSB0
(EIP1.1)
PWADC0
(EIP1.2)
PADC0
(EIP1.3)
PPCA0
(EIP1.4)
PCP0
(EIP1.5)
PCP1
(EIP1.6)
PT3
(EIP1.7)
PVBUS
(EIP2.0)
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