PIC18F4431-I/P Microchip Technology Inc., PIC18F4431-I/P Datasheet - Page 249
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PIC18F4431-I/P
Manufacturer Part Number
PIC18F4431-I/P
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IP.pdf
(396 pages)
Specifications of PIC18F4431-I/P
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
16K Bytes
Ram Size
768 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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REGISTER 20-4:
2003 Microchip Technology Inc.
bit 7-6
bit 5
bit 4:0
bit 7
ADCON3: A/D CONTROL REGISTER 3
ADRS<1:0>: A/D Result Buffer Depth Interrupt Select Control bits for Continuous Loop mode
The ADRS bits are ignored in Single-shot mode.
00 =Interrupt is generated when each word is written to the buffer
01 =Interrupt is generated when the 2nd & 4th words are written to the buffer
10 =Interrupt is generated when the 4th word is written to the buffer
11 =Unimplemented
Unimplemented: Read as ‘0’
SSRCx<4:0>: A/D Trigger Source Select bits
00000 =All triggers disabled
xxxx1 =External interrupt RC3/INT0 starts A/D sequence
xxx1x =Timer5 starts A/D sequence
xx1xx =Input Capture 1 (IC1) starts A/D sequence
x1xxx =CCP2 compare match starts A/D sequence
1xxxx =Power Control PWM module rising edge starts A/D sequence
Legend:
R = Readable bit
-n = Value at Reset
ADRS1
R/W-0
Note 1: SSRCx<4:0> bits can be set such that any of the triggers will start conversion (e.g.
SSRCx<4:0)> = 00101, will trigger the A/D conversion sequence when RC3/INT0
or Input Capture 1 event occurs).
ADRS0
R/W-0
PIC18F2331/2431/4331/4431
Preliminary
U-0
W = Writable bit
‘1’ = bit is set
—
SSRC4
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
SSRC3
R/W-0
SSRC2
R/W-0
x = bit is unknown
SSRC1
R/W-0
DS39616B-page 247
SSRC0
R/W-0
bit 0
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