PIC24F16KA101T-I/SS Microchip Technology, PIC24F16KA101T-I/SS Datasheet - Page 95

• Manufacturer Part Number: PIC24F16KA101T-I/SS
• Description: 16KB Flash, 2KB RAM, 512B EEPROM, 16 MIPS, 16 I/O,16-bit PIC24F Family, NanoWatt
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24Fr

Specifications of PIC24F16KA101T-I/SS

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 16KB (5.5K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA240017 - MODULE PLUG-IN PIC24F16KA102 PIM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.3
The operation of the oscillator is controlled by three
Special Function Registers (SFRs):
• OSCCON
• CLKDIV
• OSCTUN
The OSCCON register (Register 9-1) is the main con-
trol register for the oscillator. It controls clock source
switching and allows the monitoring of clock sources.
REGISTER 9-1:
© 2009 Microchip Technology Inc.
bit 15
R/SO-0, HSC
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14-12
bit 11
bit 10-8
Note 1:
CLKLOCK
U-0
—
2:
Control Registers
Reset values for these bits are determined by the FNOSC Configuration bits.
Also resets to ‘0’ during any valid clock switch or whenever a non-PLL Clock mode is selected.
Unimplemented: Read as ‘0’
COSC<2:0>: Current Oscillator Selection bits
111 = 8 MHz Fast RC Oscillator with Postscaler (FRCDIV)
110 = 500 kHz Low-Power Fast RC Oscillator (FRC) with Postscaler (LPFRCDIV)
101 = Low-Power RC Oscillator (LPRC)
100 = Secondary Oscillator (SOSC)
011 = Primary Oscillator with PLL module (XTPLL, HSPLL, ECPLL)
010 = Primary Oscillator (XT, HS, EC)
001 = 8 MHz FRC Oscillator with Postscaler and PLL module (FRCPLL)
000 = 8 MHz FRC Oscillator (FRC)
Unimplemented: Read as ‘0’
NOSC<2:0>: New Oscillator Selection bits
111 = 8 MHz Fast RC Oscillator with Postscaler (FRCDIV)
110 = 500 kHz Low-Power Fast RC Oscillator (FRC) with Postscaler (LPFRCDIV)
101 = Low-Power RC Oscillator (LPRC)
100 = Secondary Oscillator (SOSC)
011 = Primary Oscillator with PLL module (XTPLL, HSPLL, ECPLL)
010 = Primary Oscillator (XT, HS, EC)
001 = 8 MHz FRC Oscillator with Postscaler and PLL module (FRCPLL)
000 = 8 MHz FRC Oscillator (FRC)
R-0, HSC
COSC2
U-0
—
OSCCON: OSCILLATOR CONTROL REGISTER
CO = Clear Only bit
HS = Hardware Settable bit HSC = Hardware Settable/Clearable bit
W = Writable bit
‘1’ = Bit is set
R-0, HSC
R-0, HSC
COSC1
LOCK
(2)
R-0, HSC
COSC0
U-0
—
Preliminary
PIC24F16KA102 FAMILY
(1)
SO = Set Only bit
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/CO-0, HS
The Clock Divider register (Register 9-2) controls the
features associated with Doze mode, as well as the
postscaler for the FRC oscillator.
The FRC Oscillator Tune register (Register 9-3) allows
the user to fine tune the FRC oscillator over a range of
approximately ±12%. Each bit increment or decrement
changes the factory calibrated frequency of the FRC
oscillator by a fixed amount.
U-0
CF
—
R/W-x
NOSC2
U-0
—
(1)
x = Bit is unknown
SOSCEN
R/W-x
NOSC1
R/W-0
(1)
DS39927B-page 93
R/W-x
OSWEN
NOSC0
R/W-0
(1)
bit 8
bit 0