C8051F131R Silicon Labs, C8051F131R Datasheet - Page 336
C8051F131R
Manufacturer Part Number
C8051F131R
Description
8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F133R.pdf
(350 pages)
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
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336
Bit7:
Bits6–4: UNUSED. Read = 000b, Write = don't care.
Bits3–1: CPS2-CPS0: PCA0 Counter/Timer Pulse Select.
Bit0:
CIDL
R/W
Bit7
CIDL: PCA0 Counter/Timer Idle Control.
Specifies PCA0 behavior when CPU is in Idle Mode.
0: PCA0 continues to function normally while the system controller is in Idle Mode.
1: PCA0 operation is suspended while the system controller is in Idle Mode.
These bits select the timebase source for the PCA0 counter
ECF: PCA Counter/Timer Overflow Interrupt Enable.
This bit sets the masking of the PCA0 Counter/Timer Overflow (CF) interrupt.
0: Disable the CF interrupt.
1: Enable a PCA0 Counter/Timer Overflow interrupt request when CF (PCA0CN.7) is set.
CPS2
0
0
0
0
1
1
1
1
R/W
Bit6
-
CPS1
0
0
1
1
0
0
1
1
SFR Definition 24.2. PCA0MD: PCA0 Mode
R/W
Bit5
-
CPS0
0
1
0
1
0
1
0
1
R/W
Bit4
System clock divided by 12
System clock divided by 4
Timer 0 overflow
High-to-low transitions on ECI (max rate = system clock
divided by 4)
System clock
External clock divided by 8 (synchronized with system clock)
Reserved
Reserved
-
Rev. 1.4
CPS2
R/W
Bit3
CPS1
R/W
Bit2
Timebase
CPS0
R/W
Bit1
SFR Address:
SFR Page:
ECF
R/W
Bit0
0xD9
0
00000000
Reset Value
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