C8051F546-IM Silicon Laboratories Inc, C8051F546-IM Datasheet - Page 138

• Manufacturer Part Number: C8051F546-IM
• Description: IC 8051 MCU 8K FLASH 24-QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F54xr

Specifications of C8051F546-IM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QFN
• Mfg Application Notes: LIN Bootloader AppNote
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), LIN, SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 18
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.25 V
• Data Converters: A/D 18x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: C8051F5x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 18
• Operating Supply Voltage: 1.8 V to 5.25 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F540DK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1672 - BOARD PROTOTYPE W/C8051F540336-1669 - KIT DEVELOPMENT FOR C8051F540
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1681-5

C8051F54x
SFR Definition 17.2. OSCICN: Internal Oscillator Control
SFR Address = 0xA1; SFR Page = 0x0F;
138
Name
Reset
7:6 IOSCEN[1:0] Internal Oscillator Enable Bits.
2:0
Bit
Type
5
4
3
Bit
SUSPEND
Reserved
IFCN[2:0]
IFRDY
Name
R/W
7
1
IOSCEN[1:0]
00: Oscillator Disabled.
01: Reserved.
10: Reserved.
11: Oscillator enabled in normal mode and disabled in suspend mode.
Internal Oscillator Suspend Enable Bit.
Setting this bit to logic 1 places the internal oscillator in SUSPEND mode. The inter-
nal oscillator resumes operation when one of the SUSPEND mode awakening
events occurs.
Internal Oscillator Frequency Ready Flag.
0: Internal oscillator is not running at programmed frequency.
1: Internal oscillator is running at programmed frequency.
Read = 0b; Write = 0b.
Internal Oscillator Frequency Divider Control Bits.
000: SYSCLK derived from Internal Oscillator divided by 128.
001: SYSCLK derived from Internal Oscillator divided by 64.
010: SYSCLK derived from Internal Oscillator divided by 32.
011: SYSCLK derived from Internal Oscillator divided by 16.
100: SYSCLK derived from Internal Oscillator divided by 8.
101: SYSCLK derived from Internal Oscillator divided by 4.
110: SYSCLK derived from Internal Oscillator divided by 2.
111: SYSCLK derived from Internal Oscillator divided by 1.
R/W
6
1
SUSPEND
R/W
5
0
IFRDY
Rev. 1.1
R
4
1
Function
Reserved
R
3
0
2
0
IFCN[2:0]
R/W
1
0
0
0