C8051T610-GQ Silicon Laboratories Inc, C8051T610-GQ Datasheet - Page 150
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C8051T610-GQ
Manufacturer Part Number
C8051T610-GQ
Description
IC 8051 MCU 16K BYTE-PROG 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051T61xr
Specifications of C8051T610-GQ
Program Memory Type
OTP
Program Memory Size
16KB (16K x 8)
Package / Case
32-LQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
29
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 21x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051T6x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
I2C/SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
29
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051FT610DK
Minimum Operating Temperature
- 40 C
On-chip Adc
21-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1443 - KIT DEV FOR C8051T61X MCU'S
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1435
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051T610-GQ
Manufacturer:
SILICON
Quantity:
31
Company:
Part Number:
C8051T610-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051T610-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Part Number:
C8051T610-GQR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
C8051T610/1/2/3/4/5/6/7
23.1. Enhanced Baud Rate Generation
The UART0 baud rate is generated by Timer 1 in 8-bit auto-reload mode. The TX clock is generated by
TL1; the RX clock is generated by a copy of TL1 (shown as RX Timer in Figure 23.2), which is not user-
accessible. Both TX and RX Timer overflows are divided by two to generate the TX and RX baud rates.
The RX Timer runs when Timer 1 is enabled, and uses the same reload value (TH1). However, an
RX Timer reload is forced when a START condition is detected on the RX pin. This allows a receive to
begin any time a START is detected, independent of the TX Timer state.
Timer 1 should be configured for Mode 2, 8-bit auto-reload (see Section “25.1.3. Mode 2: 8-bit Coun-
ter/Timer with Auto-Reload” on page 174). The Timer 1 reload value should be set so that overflows will
occur at two times the desired UART baud rate frequency. Note that Timer 1 may be clocked by one of six
sources: SYSCLK, SYSCLK/4, SYSCLK/12, SYSCLK/48, the external oscillator clock/8, or an external
input T1. For any given Timer 1 clock source, the UART0 baud rate is determined by Equation 23.1-A and
Equation 23.1-B.
Where T1
value). Timer 1 clock frequency is selected as described in Section “25. Timers” on page 170. A quick ref-
erence for typical baud rates and system clock frequencies is given in Table 23.1 through Table 23.2. The
internal oscillator may still generate the system clock when the external oscillator is driving Timer 1.
150
CLK
is the frequency of the clock supplied to Timer 1, and T1H is the high byte of Timer 1 (reload
Detected
Start
A)
B)
Figure 23.2. UART0 Baud Rate Logic
UartBaudRate
T1_Overflow_Rate
Equation 23.1. UART0 Baud Rate
RX Timer
Timer 1
TH1
TL1
=
Overflow
Overflow
Rev 1.0
1
-- -
2
=
T1_Overflow_Rate
------------------------- -
256 TH1
T1
–
CLK
2
2
UART
RX Clock
TX Clock