C8051F133 Silicon Laboratories Inc, C8051F133 Datasheet - Page 201
C8051F133
Manufacturer Part Number
C8051F133
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F13xr
Specifications of C8051F133
Core Processor
8051
Core Size
8-Bit
Speed
100MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Data Bus Width
8 bit
Data Ram Size
8.25 KB
Interface Type
I2C, SMBus, SPI, UART
Maximum Clock Frequency
100 MHz
Number Of Programmable I/os
32
Number Of Timers
16 bit
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit to 12 bit
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
Other names
336-1150
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15.1.2. Erasing Flash Pages From Software
When erasing Flash memory, an entire page is erased (all bytes in the page are set to 0xFF). The Flash
memory is organized in 1024-byte pages. The 256 bytes of Scratchpad area (addresses 0x20000 to
0x200FF) consists of two 128 byte pages. To erase any Flash page, the FLWE, PSWE, and PSEE bits
must be set to ‘1’, and a byte must be written using a MOVX instruction to any address within that page.
The following is the recommended procedure for erasing a Flash page from software:
Figure 15.1. Flash Memory Map for MOVC Read and MOVX Write Operations
Step 1. Disable interrupts.
Step 2. If erasing a page in Bank 1, Bank 2, or Bank 3, set the COBANK bits (PSBANK.5-4) for
Step 3. If erasing a page in the Scratchpad area, set the SFLE bit (PSCTL.2).
Step 4. Set FLWE (FLSCL.0) to enable Flash writes/erases via user software.
Step 5. Set PSEE (PSCTL.1) to enable Flash erases.
Step 6. Set PSWE (PSCTL.0) to redirect MOVX commands to write to Flash.
Step 7. Use the MOVX instruction to write a data byte to any location within the page to be
Step 8. Clear PSEE to disable Flash erases.
Step 9. Clear the PSWE bit to redirect MOVX commands to the XRAM data space.
Step 10. Clear the FLWE bit, to disable Flash writes/erases.
Step 11. If erasing a page in the Scratchpad area, clear the SFLE bit.
Step 12. Re-enable interrupts.
the appropriate bank.
erased.
COBANK = 0 COBANK = 1 COBANK = 2 COBANK = 3
Bank 0
Bank 0
Bank 1
Bank 0
SFLE = 0
128k FLASH devices only.
Bank 2
Bank 0
Rev. 1.4
C8051F120/1/2/3/4/5/6/7
Bank 3
Bank 0
Scratchpad
Undefined
SFLE = 1
Areas (2)
C8051F130/1/2/3
Address
0xFFFF
Internal
0x7FFF
0x00FF
0x8000
0x0000
201
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