C8051F930-TB Silicon Laboratories Inc, C8051F930-TB Datasheet - Page 291
![BOARD TARGET/PROTO W/C8051F930](/photos/9/25/92560/c8051f930-tb_sml.jpg)
C8051F930-TB
Manufacturer Part Number
C8051F930-TB
Description
BOARD TARGET/PROTO W/C8051F930
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F930-TB
Contents
Board
Processor To Be Evaluated
C8051F930
Processor Series
C8051F9xx
Data Bus Width
8 bit
Interface Type
I2C, UART, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
0.9 V to 3.6 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F930
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1472
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SFR Definition 25.8. TMR2CN: Timer 2 Control
SFR Page = 0x0; SFR Address = 0xC8; Bit-Addressable
Reset
Name
Bit
1:0
Type
7
6
5
4
3
2
Bit
T2XCLK[1:0]
TF2CEN
T2SPLIT
TF2LEN
Name
TF2H
TF2H
TF2L
TR2
R/W
7
0
Timer 2 High Byte Overflow Flag.
Set by hardware when the Timer 2 high byte overflows from 0xFF to 0x00. In 16 bit
mode, this will occur when Timer 2 overflows from 0xFFFF to 0x0000. When the
Timer 2 interrupt is enabled, setting this bit causes the CPU to vector to the
Timer 2 interrupt service routine. This bit is not automatically cleared by hardware.
Timer 2 Low Byte Overflow Flag.
Set by hardware when the Timer 2 low byte overflows from 0xFF to 0x00. TF2L will
be set when the low byte overflows regardless of the Timer 2 mode. This bit is not
automatically cleared by hardware.
Timer 2 Low Byte Interrupt Enable.
When set to 1, this bit enables Timer 2 Low Byte interrupts. If Timer 2 interrupts
are also enabled, an interrupt will be generated when the low byte of Timer 2 over-
flows.
Timer 2 Capture Enable.
When set to 1, this bit enables Timer 2 Capture Mode.
Timer 2 Split Mode Enable.
When set to 1, Timer 2 operates as two 8-bit timers with auto-reload. Otherwise,
Timer 2 operates in 16-bit auto-reload mode.
Timer 2 Run Control.
Timer 2 is enabled by setting this bit to 1. In 8-bit mode, this bit enables/disables
TMR2H only; TMR2L is always enabled in split mode.
Timer 2 External Clock Select.
This bit selects the “external” and “capture trigger” clock sources for Timer 2. If
Timer 2 is in 8-bit mode, this bit selects the “external” clock source for both timer
bytes. Timer 2 Clock Select bits (T2MH and T2ML in register CKCON) may still be
used to select between the “external” clock and the system clock for either timer.
Note: External clock sources are synchronized with the system clock.
00: External Clock is SYSCLK/12. Capture trigger is SmaRTClock/8.
01: External Clock is Comparator 0. Capture trigger is SmaRTClock/8.
10: External Clock is SYSCLK/12. Capture trigger is Comparator 0.
11: External Clock is SmaRTClock/8. Capture trigger is Comparator 0.
TF2L
R/W
0
6
TF2LEN
R/W
5
0
TF2CEN
R/W
Rev. 1.1
4
0
C8051F93x-C8051F92x
T2SPLIT
Function
R/W
3
0
TR2
R/W
2
0
1
0
T2XCLK[1:0]
R/W
0
0
291
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