C8051F327-GM Silicon Laboratories Inc, C8051F327-GM Datasheet - Page 101

• Manufacturer Part Number: C8051F327-GM
• Description: IC 8051 MCU FLASH 16K 28QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F327-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 28-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: UART/USART, USB
• Peripherals: POR
• Number Of I /o: 15
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: UART/USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• 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: C8051F326DK
• Minimum Operating Temperature: - 40 C
• Package: 28QFN EP
• Device Core: 8051
• Family Name: C8051F327
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1481 - DAUGHTER CARD TOOLSTCK C8051F327770-1006 - ISP 4PORT FOR SILABS C8051F MCU
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1297-5

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