PIC18F26K22-I/ML Microchip Technology, PIC18F26K22-I/ML Datasheet - Page 331

• Manufacturer Part Number: PIC18F26K22-I/ML
• Description: IC PIC MCU 64KB FLASH 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F26K22-I/ML

• Core Size: 8-Bit
• Program Memory Size: 64KB (32K x 16)
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 19x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad
• Controller Family/series: PIC18
• No. Of I/o's: 25
• Eeprom Memory Size: 1KB
• Ram Memory Size: 3896Byte
• Cpu Speed: 64MHz
• No. Of Timers: 7
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.9
Upon Reset, all registers of the CTMU are cleared. This
leaves the CTMU module disabled, its current source is
turned off and all configuration options return to their
default settings. The module needs to be re-initialized
following any Reset.
If the CTMU is in the process of taking a measurement at
the time of Reset, the measurement will be lost. A partial
charge may exist on the circuit that was being measured,
and should be properly discharged before the CTMU
makes subsequent attempts to make a measurement.
The circuit is discharged by setting and then clearing the
IDISSEN bit (CTMUCONH<1>) while the A/D Converter
is connected to the appropriate channel.
REGISTER 19-1:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CTMUEN
R/W-0
Effects of a Reset on CTMU
CTMUEN: CTMU Enable bit
1 = Module is enabled
0 = Module is disabled
Unimplemented: Read as ‘0’
CTMUSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
TGEN: Time Generation Enable bit
1 = Enables edge delay generation
0 = Disables edge delay generation
EDGEN: Edge Enable bit
1 = Edges are not blocked
0 = Edges are blocked
EDGSEQEN: Edge Sequence Enable bit
1 = Edge 1 event must occur before Edge 2 event can occur
0 = No edge sequence is needed
IDISSEN: Analog Current Source Control bit
1 = Analog current source output is grounded
0 = Analog current source output is not grounded
CTTRIG: CTMU Special Event Trigger Control Bit
1 = CTMU Special Event Trigger is enabled
0 = CTMU Special Event Trigger is disabled
U-0
—
CTMUCONH: CTMU CONTROL REGISTER 0
W = Writable bit
‘1’ = Bit is set
CTMUSIDL
R/W-0
R/W-0
TGEN
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
EDGEN
R/W-0
19.10 Registers
There are three control registers for the CTMU:
• CTMUCONH
• CTMUCONL
• CTMUICON
The
(Register 19-1 and Register 19-2) contain control bits
for configuring the CTMU module edge source selec-
tion, edge source polarity selection, edge sequencing,
A/D trigger, analog circuit capacitor discharge and
enables. The CTMUICON register (Register 19-3) has
bits for selecting the current source range and current
source trim.
PIC18(L)F2X/4XK22
CTMUCONH
EDGSEQEN
R/W-0
and
x = Bit is unknown
IDISSEN
R/W-0
CTMUCONL
DS41412A-page 331
CTTRIG
U-0
registers
bit 0