C8051F326DK Silicon Laboratories Inc, C8051F326DK Datasheet - Page 101
C8051F326DK
Manufacturer Part Number
C8051F326DK
Description
KIT DEV FOR C8051F326/7
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F326DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F326/F327
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F326
Silicon Family Name
C8051F32x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F326, C8051F327
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1306
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12.8. Interrupts
The read-only USB0 interrupt flags are located in the USB registers shown in Figure 12.11 through
Figure 12.13. The associated interrupt enable bits are located in the USB registers shown in Figure 12.14
through Figure 12.16. A USB0 interrupt is generated when any of the USB interrupt flags is set to ‘1’. The
USB0 interrupt is enabled via the EIE1 SFR (see Section “6.3. Interrupt Handler” on page 48).
Important Note: Reading a USB interrupt flag register resets all flags in that register to ‘0’.
Bits7–2: Unused. Read = 000000b. Write = don’t care.
Bit1:
Bit0:
Bits7–2: Unused. Read = 000000b. Write = don’t care.
Bit1:
Bit0:
Bit7
Bit7
—
—
R
R
USB Register Definition 12.12. OUT1INT: USB0 Out Endpoint Interrupt
USB Register Definition 12.11. IN1INT: USB0 IN Endpoint Interrupt
IN1: IN Endpoint 1 Interrupt-pending Flag
This bit is cleared when software reads the IN1INT register.
0: IN Endpoint 1 interrupt inactive.
1: IN Endpoint 1 interrupt active.
EP0: Endpoint 0 Interrupt-pending Flag
This bit is cleared when software reads the IN1INT register.
0: Endpoint 0 interrupt inactive.
1: Endpoint 0 interrupt active.
OUT1: OUT Endpoint 1 Interrupt-pending Flag
This bit is cleared when software reads the OUT1INT register.
0: OUT Endpoint 1 interrupt inactive.
1: OUT Endpoint 1 interrupt active.
Unused. Read = 0. Write = don’t care.
Bit6
Bit6
—
—
R
R
Bit5
Bit5
—
—
R
R
Bit4
Bit4
—
—
R
R
Rev. 1.1
Bit3
Bit3
—
—
R
R
Bit2
Bit2
—
—
R
R
OUT1
IN1
Bit1
Bit1
R
R
C8051F326/7
EP0
Bit0
Bit0
—
R
R
USB Address:
USB Address:
00000000
00000000
Reset Value
Reset Value
0x04
0x02
101
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