PIC18C858-E/L Microchip Technology, PIC18C858-E/L Datasheet - Page 227

• Manufacturer Part Number: PIC18C858-E/L
• Description: IC MCU OTP 16KX16 CAN 84PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C858-E/L

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: OTP
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 84-PLCC
• For Use With: AC164310 - MODULE SKT FOR PM3 84PLCCDVA18XL840 - ADAPTER DEVICE ICE 84PLCCAC174012 - MODULE SKT PROMATEII 84PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC18C858E/L

18.0
The analog-to-digital (A/D) converter module has
twelve inputs for the PIC18C658 devices and sixteen
for the PIC18C858 devices. This module has the
ADCON0, ADCON1, and ADCON2 registers.
The A/D allows conversion of an analog input signal to
a corresponding 10-bit digital number.
REGISTER 18-1:
2000 Microchip Technology Inc.
10-BIT ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
bit 7-6
bit 5-2
bit 1
bit 0
ADCON0 REGISTER
Unimplemented: Read as '0'
CHS3:CHS0: Analog Channel Select bits
0000 = channel 00, (AN0)
0001 = channel 01, (AN1)
0010 = channel 02, (AN2)
0011 = channel 03, (AN3)
0100 = channel 04, (AN4)
0101 = channel 05, (AN5)
0110 = channel 06, (AN6)
0111 = channel 07, (AN7)
1000 = channel 08, (AN8)
1001 = channel 09, (AN9)
1010 = channel 10, (AN10)
1011 = channel 11, (AN11)
1100 = channel 12, (AN12)
1101 = channel 13, (AN13)
1110 = channel 14, (AN14)
1111 = channel 15, (AN15)
Note 1: These channels are not available on the PIC18C658 devices.
GO/DONE: A/D Conversion Status bit
When ADON = 1
1 = A/D conversion in progress. Setting this bit starts an A/D conversion cycle. This bit is auto-
0 = A/D conversion not in progress
ADON: A/D On bit
1 = A/D converter module is operating
0 = A/D converter module is shut off and consumes no operating current
bit 7
Legend:
R = Readable bit
- n = Value at POR
U-0
—
matically cleared by hardware when the A/D conversion is complete.
U-0
—
Advanced Information
R/W-0
CHS3
(1)
(1)
(1)
(1)
W = Writable bit
’1’ = Bit is set
R/W-0
CHS2
The A/D module has five registers:
The ADCON0 register, shown in Register 18-1, con-
trols the operation of the A/D module. The ADCON1
register, shown in Register 18-2, configures the func-
tions of the port pins. The ADCON2, shown in Register
16-3, configures the A/D clock source and justification.
• A/D Result High Register (ADRESH)
• A/D Result Low Register (ADRESL)
• A/D Control Register 0 (ADCON0)
• A/D Control Register 1 (ADCON1)
• A/D Control Register 2 (ADCON2)
R/W-0
CHS1
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
R/W-0
CHS0
PIC18CXX8
GO/DONE
x = Bit is unknown
R/W-0
DS30475A-page 227
ADON
R/W-0
bit 0