AT89LP3240 Atmel Corporation, AT89LP3240 Datasheet - Page 139
AT89LP3240
Manufacturer Part Number
AT89LP3240
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT89LP3240.pdf
(200 pages)
Specifications of AT89LP3240
Flash (kbytes)
32 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-1C
Max I/o Pins
38
Spi
1
Twi (i2c)
1
Uart
1
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
153.8
Sram (kbytes)
4.25
Eeprom (bytes)
8192
Self Program Memory
IAP
Operating Voltage (vcc)
2.4 to 3.6
Timers
3
Isp
SPI/OCD
Watchdog
Yes
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Table 20-2.
Table 20-3.
Table 20-4.
3706C–MICRO–2/11
Symbol
ADIF
GO/BSY
DAC
ADCE
LADJ
ACK [2-0]
DADC = D9H
Not Bit Addressable
Bit
DADL = DCH
Not Bit Addressable
Bit
DADH = DDH
Not Bit Addressable
Bit
Function
ADC Interrupt Flag. Set by hardware when a conversion completes. Cleared by hardware when calling the interrupt
service routine.
Conversion Start/Busy Flag. In software triggered mode, writing a 1 to this bit starts a conversion. The bit remains high
while the conversion is in progress and is cleared by hardware when the conversion completes. In hardware triggered
mode, this bit is set and cleared by hardware to flag when the DADC is busy.
Digital-to-Analog Conversion Enable. Set to configure the DADC in Digital-to-Analog (DAC) mode. Clear to configure the
DADC in Analog-to-Digital (ADC) mode.
DADC Enable. Set to enable the DADC. Clear to disable the DADC.
Left Adjust Enable. When cleared, the ADC results are right adjusted and the MSBs are sign extended. When set, the
ADC results are left adjusted and the LSBs are zeroed.
DADC Clock Select
ACK3
0
0
0
0
1
1
1
1
DADC
DADL
DADH
ADC.15
ADC.7
ADIF
7
7
7
– DADC Data Low Register
– DADC Control Register
– DADC Data High Register
ACK1
0
0
1
1
0
0
1
1
GO/BSY
ADC.14
ADC.6
6
6
6
ACK0
0
1
0
1
0
1
0
1
ADC.13
ADC.5
DAC
5
Clock Source
Internal RC Oscillator/4 (2MHz)
f
f
f
f
f
f
f
5
5
sys
sys
sys
sys
sys
sys
sys
/2
/4
/8
/16
/32
/64
/128
ADC.12
ADC.4
ADCE
4
4
4
ADC.11
ADC.3
LADJ
3
3
3
ADC.10
ADC.2
ACK2
2
2
2
AT89LP3240/6440
Reset Value = 0000 0000B
Reset Value = 0000 0000B
Reset Value = 0000 0000B
ADC.1
ADC.9
ACK1
1
1
1
ADC.0
ADC.8
ACK0
0
0
0
139
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