C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 254

• Manufacturer Part Number: C8051F321
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321

• 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: 21
• 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 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F320/1
254
This read-only register returns the 8-bit revision ID: 0x01 (Revision B).
Bits7-0
Bits7-0:
Bit7
Bit7
Bit7
FPCTL: FLASH Programming Control Register.
This register is used to enable FLASH programming via the C2 interface. To enable C2 FLASH pro-
gramming, the following codes must be written in order: 0x02, 0x01. Note that once C2 FLASH pro-
gramming is enabled, a system reset must be issued to resume normal operation.
FPDAT: C2 FLASH Programming Data Register.
This register is used to pass FLASH commands, addresses, and data during C2 FLASH accesses.
Valid commands are listed below.
Code
0x06
0x07
0x08
0x03
Figure 21.4. FPCTL: C2 FLASH Programming Control Register
Figure 21.5. FPDAT: C2 FLASH Programming Data Register
Bit6
Bit6
Bit6
FLASH Block Read
FLASH Block Write
FLASH Page Erase
Device Erase
Figure 21.3. REVID: C2 Revision ID Register
Bit5
Bit5
Bit5
Bit4
Bit4
Bit4
Command
Rev. 1.1
Bit3
Bit3
Bit3
Bit2
Bit2
Bit2
Bit1
Bit1
Bit1
Bit0
Bit0
Bit0
00000000
00000000
00000000
Reset Value
Reset Value
Reset Value