C8051F704-GM Silicon Laboratories Inc, C8051F704-GM Datasheet - Page 275
![IC 8051 MCU 15K FLASH 48-QFN](/photos/12/27/122740/c8051f704-gm_sml.jpg)
C8051F704-GM
Manufacturer Part Number
C8051F704-GM
Description
IC 8051 MCU 15K FLASH 48-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F70xr
Specifications of C8051F704-GM
Program Memory Type
FLASH
Program Memory Size
15KB (15K x 8)
Package / Case
48-QFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Cap Sense, POR, PWM, Temp Sensor, WDT
Number Of I /o
39
Eeprom Size
32 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F7x
Core
8051
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
39
Number Of Timers
4 x 16 bit
Operating Supply Voltage
1.8 V to 3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F700DK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1635 - DEV KIT FOR C8051F700
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1610-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F704-GM
Manufacturer:
Silicon Laboratories Inc
Quantity:
135
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SFR Definition 33.8. TMR2CN: Timer 2 Control
SFR Address = 0xC8; SFR Page = All Pages; Bit-Addressable
Name
Reset
Bit
Type
7
6
5
4
3
2
1
0
Bit
TF2CEN
T2SPLIT
T2XCLK
TF2LEN
Unused
Name
TF2H
TF2L
TR2
TF2H
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 overflows.
Timer 2 Comparator Capture Enable.
When set to 1, this bit enables Timer 2 Comparator Capture Mode. If TF2CEN is set,
on a rising edge of the Comparator0 output the current 16-bit timer value in
TMR2H:TMR2L will be copied to TMR2RLH:TMR2RLL. If Timer 2 interrupts are also
enabled, an interrupt will be generated on this event.
Timer 2 Split Mode Enable.
When this bit is set, Timer 2 operates as two 8-bit timers with auto-reload.
0: Timer 2 operates in 16-bit auto-reload mode.
1: Timer 2 operates as two 8-bit auto-reload timers.
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.
Read = 0b; Write = Don’t Care.
Timer 2 External Clock Select.
This bit selects the external clock source for Timer 2. If Timer 2 is in 8-bit mode, this
bit selects the external oscillator clock source for both timer bytes. However, the
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.
0: Timer 2 clock is the system clock divided by 12.
1: Timer 2 clock is the external clock divided by 8 (synchronized with SYSCLK).
TF2L
R/W
6
0
TF2LEN
R/W
5
0
TF2CEN
R/W
Rev. 1.0
4
0
Function
T2SPLIT
R/W
3
0
TR2
R/W
C8051F70x/71x
2
0
R
1
0
T2XCLK
R/W
0
0
275
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