C8051F305-GMR Silicon Laboratories Inc, C8051F305-GMR Datasheet - Page 92

IC 8051 MCU 2K FLASH 11QFN

C8051F305-GMR

Manufacturer Part Number
C8051F305-GMR
Description
IC 8051 MCU 2K FLASH 11QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F30xr
Datasheets

Specifications of C8051F305-GMR

Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
8
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
11-VQFN
For Use With
336-1444 - ADAPTER PROGRAM TOOLSTICK F300
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F305-GMR
Manufacturer:
SILICONLABS/芯科
Quantity:
20 000
Company:
Part Number:
C8051F305-GMR
Quantity:
1 061
C8051F300/1/2/3/4/5
Accessing Flash from user firmware executing from an unlocked page:
Accessing Flash from user firmware executing from a locked page:
92
Bits7–2: UNUSED: Read = 000000b, Write = don’t care.
Bit1:
Bit0:
1. Any unlocked page except the page containing the Lock Byte may be read, written, or erased.
2. Locked pages cannot be read, written, or erased. An erase attempt on the page containing the
3. The page containing the Lock Byte cannot be erased. It may be read or written only if it is
4. Reading the contents of the Lock Byte is always permitted.
5. Locking additional pages (changing ‘1’s to ‘0’s in the Lock Byte) is not permitted.
6. Unlocking Flash pages (changing ‘0’s to ‘1’s in the Lock Byte) is not permitted.
7. The Reserved Area cannot be read, written, or erased. Any attempt to access the reserved area,
1. Any unlocked page except the page containing the Lock Byte may be read, written, or erased.
2. Any locked page except the page containing the Lock Byte may be read, written, or erased. An
3. The page containing the Lock Byte cannot be erased. It may only be read or written. An erase
4. Reading the contents of the Lock Byte is always permitted.
5. Locking additional pages (changing ‘1’s to ‘0’s in the Lock Byte) is not permitted.
6. Unlocking Flash pages (changing ‘0’s to ‘1’s in the Lock Byte) is not permitted.
7. The Reserved Area cannot be read, written, or erased. Any attempt to access the reserved area,
R/W
Bit7
Lock Byte will result in a Flash Error device reset.
unlocked. An erase attempt on the page containing the Lock Byte will result in a Flash Error device
reset.
or any other locked page, will result in a Flash Error device reset.
erase attempt on the page containing the Lock Byte will result in a Flash Error device reset.
attempt on the page containing the Lock Byte will result in a Flash Error device reset.
or any other locked page, will result in a Flash Error device reset.
PSEE: Program Store Erase Enable
Setting this bit (in combination with PSWE) allows an entire page of Flash program memory
to be erased. If this bit is logic 1 and Flash writes are enabled (PSWE is logic 1), a write to
Flash memory using the MOVX instruction will erase the entire page that contains the loca-
tion addressed by the MOVX instruction. The value of the data byte written does not matter.
0: Flash program memory erasure disabled.
1: Flash program memory erasure enabled.
PSWE: Program Store Write Enable
Setting this bit allows writing a byte of data to the Flash program memory using the MOVX
instruction. The Flash location should be erased before writing data.
0: Writes to Flash program memory disabled.
1: Writes to Flash program memory enabled; the MOVX instruction targets Flash memory.
SFR Definition 10.1.
R/W
Bit6
R/W
Bit5
R/W
Bit4
PSCTL: Program Store R/W Control
Rev. 2.9
R/W
Bit3
R/W
Bit2
PSEE
R/W
Bit1
PSWE
R/W
Bit0
SFR Address:
00000000
Reset Value
0x8F

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