C8051F531-ITR Silicon Labs, C8051F531-ITR Datasheet - Page 186
C8051F531-ITR
Manufacturer Part Number
C8051F531-ITR
Description
8-bit Microcontrollers - MCU 8KB 12ADC 125C 20Pin MCU
Manufacturer
Silicon Labs
Datasheet
1.C8051F536-ITR.pdf
(220 pages)
Specifications of C8051F531-ITR
Product Category
8-bit Microcontrollers - MCU
Rohs
yes
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
8 KB
Data Ram Size
256 B
On-chip Adc
Yes
Package / Case
TSSOP-20
Mounting Style
SMD/SMT
A/d Bit Size
12 bit
A/d Channels Available
16
Interface Type
SPI, UART
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
16
Number Of Timers
3
On-chip Dac
No
Processor Series
C8051
Program Memory Type
Flash
Factory Pack Quantity
2500
Supply Voltage - Max
2.7 V, 5.25 V
Supply Voltage - Min
2 V, 2.7 V
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C8051F52x/F53x
SFR Definition 18.1. TCON: Timer Control
186
Bit7:
Bit6:
Bit5:
Bit4:
Bit3:
Bit2:
Bit1:
Bit0:
TF1
R/W
Bit7
TF1: Timer 1 Overflow Flag.
Set by hardware when Timer 1 overflows. This flag can be cleared by software but is auto-
matically cleared when the CPU vectors to the Timer 1 interrupt service routine.
0: No Timer 1 overflow detected.
1: Timer 1 has overflowed.
TR1: Timer 1 Run Control.
0: Timer 1 disabled.
1: Timer 1 enabled.
TF0: Timer 0 Overflow Flag.
Set by hardware when Timer 0 overflows. This flag can be cleared by software but is auto-
matically cleared when the CPU vectors to the Timer 0 interrupt service routine.
0: No Timer 0 overflow detected.
1: Timer 0 has overflowed.
TR0: Timer 0 Run Control.
0: Timer 0 disabled.
1: Timer 0 enabled.
IE1: External Interrupt 1.
This flag is set by hardware when an edge/level of type defined by IT1 is detected. It can be
cleared by software but is automatically cleared when the CPU vectors to the External Inter-
rupt 1 service routine if IT1 = 1. When IT1 = 0, this flag is set to 1 when INT0 is active as
defined by bit IN1PL in register IT01CF (see SFR Definition 10.5. “IT01CF: INT0/INT1 Con-
figuration” on page 105).
IT1: Interrupt 1 Type Select.
This bit selects whether the configured INT0 interrupt will be edge or level sensitive. INT0 is
configured active low or high by the IN1PL bit in the IT01CF register (see SFR
Definition 10.5. “IT01CF: INT0/INT1 Configuration” on page 105).
0: INT0 is level triggered.
1: INT0 is edge triggered.
IE0: External Interrupt 0.
This flag is set by hardware when an edge/level of type defined by IT0 is detected. It can be
cleared by software but is automatically cleared when the CPU vectors to the External Inter-
rupt 0 service routine if IT0 = 1. When IT0 = 0, this flag is set to 1 when INT0 is active as
defined by bit IN0PL in register IT01CF (see SFR Definition 10.5. “IT01CF: INT0/INT1 Con-
figuration” on page 105).
IT0: Interrupt 0 Type Select.
This bit selects whether the configured INT0 interrupt will be edge or level sensitive. INT0 is
configured active low or high by the IN0PL bit in register IT01CF (see SFR Definition 10.5.
“IT01CF: INT0/INT1 Configuration” on page 105).
0: INT0 is level triggered.
1: INT0 is edge triggered.
TR1
R/W
Bit6
TF0
R/W
Bit5
TR0
R/W
Bit4
Rev. 1.4
R/W
IE1
Bit3
R/W
IT1
Bit2
R/W
IE0
Bit1
SFR Address:
R/W
IT0
Bit0
Addressable
Reset Value
00000000
0x88
Bit
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