C8051F124 Silicon Laboratories Inc, C8051F124 Datasheet - Page 204
C8051F124
Manufacturer Part Number
C8051F124
Description
IC 8051 MCU 128K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F12xr
Specifications of C8051F124
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
64
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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204
Flash Read Lock Byte
Bits7–0: Each bit locks a corresponding block of memory. (Bit7 is MSB).
Flash Write/Erase Lock Byte
Bits7–0: Each bit locks a corresponding block of memory.
Flash access Limit Register (FLACL)
Read and Write/Erase Security Bits.
(Bit 7 is MSB.)
Bit
7
6
5
4
3
2
1
0
0x1C000 - 0x1FBFD
0x0C000 - 0x0FFFF
0x18000 - 0x1BFFF
0x08000 - 0x0BFFF
0x14000 - 0x17FFF
0x10000 - 0x13FFF
0x04000 - 0x07FFF
0x00000 - 0x03FFF
Memory Block
0: Read operations are locked (disabled) for corresponding block across the JTAG interface.
1: Read operations are unlocked (enabled) for corresponding block across the JTAG inter-
face.
0: Write/Erase operations are locked (disabled) for corresponding block across the JTAG
interface.
1: Write/Erase operations are unlocked (enabled) for corresponding block across the JTAG
interface.
NOTE: When the highest block is locked, the security bytes may be written but not erased.
The Flash Access Limit is defined by the setting of the FLACL register, as described in SFR
Definition 15.1. Firmware running at or above this address is prohibited from using the
MOVX and MOVC instructions to read, write, or erase Flash locations below this address.
Figure 15.2. 128 kB Flash Memory Map and Security Bytes
Write/Erase Lock Byte
Read Lock Byte
Memory Space
Program/Data
SFLE = 0
Reserved
Rev. 1.4
0x1FFFF
0x1FC00
0x1FBFF
0x1FBFE
0x1FBFD
0x00000
Flash Access Limit
Scratchpad Memory
SFLE = 1
(Data only)
0x00FF
0x0000
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