PIC18F4450-I/PT Microchip Technology, PIC18F4450-I/PT Datasheet - Page 141

• Manufacturer Part Number: PIC18F4450-I/PT
• Description: IC PIC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4450-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: UART/USART, USB
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 34
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART/USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM163025, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 13-ch x 10-bit
• Height: 1 mm
• Length: 10 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 10 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM163025 - PIC DEM FULL SPEED USB DEMO BRD444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 14-5:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5-4
bit 3
bit 2
bit 1-0
Note 1:
UOWN
R/W-x
2:
3:
(1)
This bit must be initialized by the user to the desired value prior to enabling the USB module.
This bit is ignored unless DTSEN = 1.
If these bits are set, USB communication may not work. Hence, these bits should always be maintained
as ‘0’.
UOWN: USB Own bit
0 = The microcontroller core owns the BD and its corresponding buffer
DTS: Data Toggle Synchronization bit
1 = Data 1 packet
0 = Data 0 packet
Reserved: These bits should always be programmed to ‘0’
DTSEN: Data Toggle Synchronization Enable bit
1 = Data toggle synchronization is enabled; data packets with incorrect Sync value will be ignored
0 = No data toggle synchronization is performed
BSTALL: Buffer Stall Enable bit
1 = Buffer stall enabled; STALL handshake issued if a token is received that would use the BD in the
0 = Buffer stall disabled
BC9:BC8: Byte Count 9 and 8 bits
The byte count bits represent the number of bytes that will be transmitted for an IN token or received
during an OUT token. Together with BC<7:0>, the valid byte counts are 0-1023.
DTS
R/W-x
except for a SETUP transaction, which is accepted even if the data toggle bits do not match.
given location (UOWN bit remains set, BD value is unchanged)
BDnSTAT: BUFFER DESCRIPTOR n STATUS REGISTER (BD0STAT THROUGH
BD63STAT), CPU MODE (DATA IS WRITTEN TO THE SIDE)
(2)
W = Writable bit
‘1’ = Bit is set
R/W-x
—
(3)
(1)
R/W-x
—
(3)
(2)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
DTSEN
R/W-x
PIC18F2450/4450
(3)
BSTALL
R/W-x
x = Bit is unknown
R/W-x
BC9
DS39760D-page 139
R/W-x
BC8
bit 0