PIC18F1330-I/SO Microchip Technology, PIC18F1330-I/SO Datasheet - Page 132

• Manufacturer Part Number: PIC18F1330-I/SO
• Description: IC PIC MCU FLASH 4KX16 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F1330-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 8KB (4K x 16)
• Package / Case: 18-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 16
• Eeprom Size: 128 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Operating Supply Voltage: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 4-ch x 10-bit
• Package: 18SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18F1230/1330
REGISTER 13-5:
13.7.2
The amount of dead time provided by the dead-time
unit is selected by specifying the input clock prescaler
value and a 6-bit unsigned value defined in the DTCON
register. Four input clock prescaler selections have
been provided to allow a suitable range of dead times
based on the device operating frequency. F
F
options available using the DTPS1:DTPS0 control bits
in the DTCON register.
After selecting an appropriate prescaler value, the
dead time is adjusted by loading a 6-bit unsigned value
into DTCON<5:0>. The dead-time unit prescaler is
cleared on any of the following events:
• On a load of the down timer due to a duty cycle
• On a write to the DTCON register; or
• On any device Reset.
DS39758C-page 130
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-0
OSC
comparison edge event;
DTPS1
R/W-0
/4, F
OSC
DEAD-TIME RANGES
/8 and F
DTPS1:DTPS0: Dead-Time Unit A Prescale Select bits
11 = Clock source for dead-time unit is F
10 = Clock source for dead-time unit is F
01 = Clock source for dead-time unit is F
00 = Clock source for dead-time unit is F
DT5:DT0: Unsigned 6-Bit Dead-Time Value for Dead-Time Unit bits
DTPS0
R/W-0
DTCON: DEAD-TIME CONTROL REGISTER
OSC
/16 are the clock prescaler
W = Writable bit
‘1’ = Bit is set
R/W-0
DT5
Advance Information
OSC
R/W-0
DT4
/2,
OSC
OSC
OSC
OSC
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
/16
/8
/4
/2
R/W-0
13.7.3
The dead-time counter is clocked from any of the
Q clocks based on the following conditions.
1.
2.
3.
4.
DT3
The dead-time counter is clocked on Q1 when:
• The DTPS bits are set to any of the following
• The PWM Time Base Prescale bits
The dead-time counter is clocked by a pair of
Q clocks when the PWM Time Base Prescale
bits are set to 1:1 (PTCKPS<1:0> = 00, F
and the dead-time counter is clocked by the
F
The dead-time counter is clocked using every
other Q clock, depending on the two LSbs in the
Duty Cycle registers:
• If the PWM duty cycle match occurs on Q1 or
• If the PWM duty cycles match occurs on Q2
When the DTPS<1:0> bits are set to any of the
other dead-time prescaler settings (i.e., F
F
caler is set to 1:1, the dead-time counter is clocked
by the Q clock corresponding to the Q clocks on
which the PWM duty cycle match occurs.
OSC
OSC
dead-time prescaler settings: F
F
(PTCKPS<1:0>) are set to any of the following
prescale ratios: F
Q3, then the dead-time counter is clocked
using every Q1 and Q3
or Q4, then the dead-time counter is clocked
using every Q2 and Q4
OSC
/8 or F
/2 (DTPS<1:0> = 00).
DECREMENTING THE DEAD-TIME
COUNTER
/8, F
R/W-0
DT2
OSC
OSC
/16) and the PWM time base pres-
/16
OSC
© 2007 Microchip Technology Inc.
x = Bit is unknown
/16, F
R/W-0
DT1
OSC
/64, F
OSC
/4,
OSC
R/W-0
DT0
OSC
OSC
/256
bit 0
/4)
/4,