C8051F131R Silicon Labs, C8051F131R Datasheet - Page 134

• Manufacturer Part Number: C8051F131R
• Description: 8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
• Manufacturer: Silicon Labs

Specifications of C8051F131R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 100 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 9
• Data Rom Size: 64 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
134
Bits 7
Bits 5
Bits 3
Bits 1
*Note: On the C8051F132/3, the COBANK and IFBANK bits should both remain set to the default setting of ‘01’ to
Figure 11.3. Address Memory Map for Instruction Fetches (128 kB Flash Only)
R/W
Bit7
-
–
–
–
–
6: Reserved.
4: COBANK: Constant Operations Bank Select.
2: Reserved.
0: IFBANK: Instruction Fetch Operations Bank Select.
ensure proper device functionality.
These bits select which Flash bank is targeted during constant operations (MOVC and Flash
MOVX) involving addresses 0x8000 to 0xFFFF. These bits are ignored when accessing the
Scratchpad memory areas (see
00: Constant Operations Target Bank 0 (note that Bank 0 is also mapped between 0x0000 to
0x7FFF).
01: Constant Operations Target Bank 1.
10: Constant Operations Target Bank 2.
11: Constant Operations Target Bank 3.
These bits select which Flash bank is used for instruction fetches involving addresses 0x8000 to
0xFFFF. These bits can only be changed from code in Bank 0 (see Figure 11.3).
00: Instructions Fetch From Bank 0 (note that Bank 0 is also mapped between 0x0000 to
0x7FFF).
01: Instructions Fetch From Bank 1.
10: Instructions Fetch From Bank 2.
11: Instructions Fetch From Bank 3.
SFR Definition 11.1. PSBANK: Program Space Bank Select
R/W
Bit6
-
Address
0xFFFF
0x7FFF
Internal
0x8000
0x0000
R/W
Bit5
COBANK
IFBANK = 0
Bank 0
Bank 0
R/W
Bit4
Section “15. Flash Memory” on page 199
IFBANK = 1
Bank 1
Bank 0
Rev. 1.4
R/W
Bit3
-
IFBANK = 2
Bank 2
Bank 0
R/W
Bit2
-
IFBANK = 3
Bank 3
Bank 0
R/W
Bit1
IFBANK
SFR Address:
SFR Page:
R/W
Bit0
).
0xB1
All Pages
00010001
Reset Value