C8051F320 Silicon Laboratories Inc, C8051F320 Datasheet - Page 110

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C8051F320

Manufacturer Part Number
C8051F320
Description
IC 8051 MCU 16K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet

Specifications of C8051F320

Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 17x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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C8051F320/1
110
Bits7-3:
Bit2:
Bit1:
Bit0:
R/W
Bit7
-
other FLASH pages
FLASH security lock
Locked when any
Unused: Read = 00000b. Write = don’t care.
Reserved. Read = 0b. Must Write = 0b.
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 location 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 write
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 write instruction targets FLASH memory.
according to the
Access limit set
are locked
Figure 11.1. FLASH Program Memory Map and Security Byte
R/W
Bit6
byte
-
Figure 11.2. PSCTL: Program Store R/W Control
R/W
Bit5
-
Unlocked FLASH Pages
R/W
Bit4
-
C8051F320/1
Lock Byte
Reserved
Rev. 1.1
R/W
Bit3
-
Reserved
R/W
Bit2
0x3E00
0x3DFF
0x3DFE
0x3C00
0x0000
PSEE
R/W
Bit1
organized in 512-byte
FLASH memory
pages
PSWE
R/W
Bit0
SFR Address:
00000000
Reset Value
0x8F

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