C8051F327 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F327

Full Speed USB, 16 kB Flash MCU Family

Silicon Laboratories 

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C8051F326/7

Table 6.5. Interrupt Summary

Interrupt Source

Interrupt

Vector

Priority

Order

Pending Flag

Enable

Flag

Priority

Control

Reset

External Interrupt 0

(/INT0)

0x0000

0x0003

Top None

0 IE0 (TCON.1)

N/A

N/A

Always

Enabled

Always

Highest

Y

Y

EX0 (IE.0)

PX0

(IP.0)

Timer 0 Overflow

0x000B

1 TF0 (TCON.5)

Y Y ET0 (IE.1) PT0 (IP.1)

External Interrupt 1

(/INT1)

Timer 1 Overflow

UART0

0x0013

0x001B

0x0023

2 IE1 (TCON.3)

3 TF1 (TCON.7)

4

RI0 (SCON0.0)

TI0 (SCON0.1)

Y

Y

EX1 (IE.2)

PX1

(IP.2)

Y Y ET1 (IE.3) PT1 (IP.3)

Y

N

ES0 (IE.4)

PS0

(IP.4)

USB0

VBUS Level

0x0043

0x007B

8 Special*

15 N/A

N

N

EUSB0

(EIE1.1)

N/A

N/A

EVBUS

(EIE2.0)

PUSB0

(EIP1.1)

PVBUS

(EIP2.0)

*Note: See Section “12.8. Interrupts” on page 101 for more details about the USB interrupt.

6.3.5. Interrupt Register Descriptions

The SFRs used to enable the interrupt sources and set their priority level are described below. Refer to the

data sheet section associated with a particular on-chip peripheral for information regarding valid interrupt

conditions for the peripheral and the behavior of its interrupt-pending flag(s).

50

Rev. 1.1

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