C8051T601-GMR Silicon Laboratories Inc, C8051T601-GMR Datasheet - Page 42
C8051T601-GMR
Manufacturer Part Number
C8051T601-GMR
Description
MCU 8-Bit C8051T60x 8051 CISC 8KB EPROM 1.8V/3V 14-Pin QFN EP T/R
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051T600SDB.pdf
(188 pages)
Specifications of C8051T601-GMR
Package
14QFN EP
Device Core
8051
Family Name
C8051T60x
Maximum Speed
25 MHz
Ram Size
256 Byte
Program Memory Size
8 KB
Operating Supply Voltage
1.8|3 V
Data Bus Width
8 Bit
Program Memory Type
EPROM
Number Of Programmable I/os
8
Interface Type
I2C/SMBus/UART
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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C8051T600/1/2/3/4/5/6
9.3.2. Tracking Modes
The AD0TM bit in register ADC0CN enables "delayed conversions", and will delay the actual conversion
start by three SAR clock cycles, during which time the ADC will continue to track the input. If AD0TM is left
at logic 0, a conversion will begin immediately, without the extra tracking time. For internal start-of-conver-
sion sources, the ADC will track anytime it is not performing a conversion. When the CNVSTR signal is
used to initiate conversions, ADC0 will track either when AD0TM is logic 1, or when AD0TM is logic 0 and
CNVSTR is held low. See Figure 9.2 for track and convert timing details. Delayed conversion mode is use-
ful when AMUX settings are frequently changed, due to the settling time requirements described in Section
“9.3.3. Settling Time Requirements” on page 43.
42
Timer 0, Timer 2, Timer 1 Overflow
(AD0CM[2:0]=000, 001, 010, 011)
Write '1' to AD0BUSY,
Figure 9.2. 10-Bit ADC Track and Conversion Example Timing
(AD0CM[2:0]=1xx)
SAR Clocks
AD0TM=1
AD0TM=0
AD0TM=1
AD0TM=0
CNVSTR
Clocks
Clocks
Clocks
SAR
SAR
SAR
N/C
A. ADC Timing for External Trigger Source
Track
B. ADC Timing for Internal Trigger Source
Track
Track
Track
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15* 16 17
1 2 3 4 5 6 7 8 9 10 11 12* 13 14
Rev. 1.2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15* 16 17
1 2 3 4 5 6 7 8 9 10 11 12* 13 14
Convert
Convert
*Conversion Ends at rising edge of 15
*Conversion Ends at rising edge of 12
*Conversion Ends at rising edge of 15
*Conversion Ends at rising edge of 12
Convert
Convert
th
th
th
clock in 8-bit Mode
th
clock in 8-bit Mode
clock in 8-bit Mode
Track
clock in 8-bit Mode
N/C
Track
Track
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