C8051F541-IQ Silicon Laboratories Inc, C8051F541-IQ Datasheet - Page 125

• Manufacturer Part Number: C8051F541-IQ
• Description: IC 8051 MCU 16K FLASH 32-QFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F54xr

Specifications of C8051F541-IQ

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 32-QFP
• Mfg Application Notes: LIN Bootloader AppNote
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 25
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.25 V
• Data Converters: A/D 25x12b
• 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: 25
• 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: 336-1674

SFR Definition 14.4. CCH0CN: Cache Control
SFR Address = 0xE3; SFR Page = 0x0F
SFR Definition 14.5. ONESHOT: Flash Oneshot Period
SFR Address = 0xBE; SFR Page = 0x0F
Name Reserved
Reset
Name
Reset
Bit
7:6
4:1
Bit
7:4
3:0
Type
Type
5
0
Bit
Bit
PERIOD[3:0] Oneshot Period Control Bits.
Reserved
Reserved
CHBLKW
CHPFEN
Name
Unused
Name
R/W
R
7
0
7
0
Must Write 00b
Cache Prefect Enable Bit.
0: Prefetch engine is disabled.
1: Prefetch engine is enabled.
Must Write 0000b.
Block Write Enable Bit.
This bit allows block writes to Flash memory from firmware.
0: Each byte of a software Flash write is written individually.
1: Flash bytes are written in groups of two.
Reserved
Read = 0000b. Write = don’t care.
These bits limit the internal Flash read strobe width as follows. When the Flash read
strobe is de-asserted, the Flash memory enters a low-power state for the remainder
of the system clock cycle.
R/W
R
6
0
6
0
CHPFEN
R/W
R
5
1
5
0
FLASH
Reserved
R/W
Rev. 1.1
R
4
0
4
0
RDMAX
Function
Reserved
Function
=
R/W
R/W
5ns
3
0
3
1
+

PERIOD 5ns
Reserved
R/W
R/W
2
0
2
1
PERIOD[3:0]


C8051F54x
Reserved
R/W
R/W
1
0
1
1
CHBLKW
R/W
R/W
0
0
0
1
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