PIC18F2450-I/SO Microchip Technology, PIC18F2450-I/SO Datasheet - Page 137

• Manufacturer Part Number: PIC18F2450-I/SO
• Description: IC PIC MCU FLASH 8KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2450-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• 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: 23
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• 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: 23
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 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, ICE2000, ICE4000, DM163014, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 48 MHz
• A/d Bit Size: 10 bit
• A/d Channels Available: 10
• Height: 2.31 mm
• Length: 17.87 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 7.49 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFNDM163025 - PIC DEM FULL SPEED USB DEMO BRD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

14.2.4
Each of the 16 possible bidirectional endpoints has its
own independent control register, UEPn (where ‘n’ rep-
resents the endpoint number). Each register has an
identical complement of control bits. The prototype is
shown in Register 14-4.
The EPHSHK bit (UEPn<4>) controls handshaking for
the endpoint; setting this bit enables USB handshaking.
Typically, this bit is always set except when using
isochronous endpoints.
The EPCONDIS bit (UEPn<3>) is used to enable or
disable USB control operations (SETUP) through the
endpoint.
transactions. Note that the corresponding EPINEN and
EPOUTEN bits must be set to enable IN and OUT
REGISTER 14-4:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
U-0
—
USB ENDPOINT CONTROL
Valid only if Endpoint n is enabled; otherwise, the bit is ignored.
Clearing
Unimplemented: Read as ‘0’
EPHSHK: Endpoint Handshake Enable bit
1 = Endpoint handshake enabled
0 = Endpoint handshake disabled (typically used for isochronous endpoints)
EPCONDIS: Bidirectional Endpoint Control bit
If EPOUTEN = 1 and EPINEN = 1:
1 = Disable Endpoint n from control transfers; only IN and OUT transfers allowed
0 = Enable Endpoint n for control (SETUP) transfers; IN and OUT transfers also allowed
EPOUTEN: Endpoint Output Enable bit
1 = Endpoint n output enabled
0 = Endpoint n output disabled
EPINEN: Endpoint Input Enable bit
1 = Endpoint n input enabled
0 = Endpoint n input disabled
EPSTALL: Endpoint Stall Enable bit
1 = Endpoint n is stalled
0 = Endpoint n is not stalled
U-0
—
UEPn: USB ENDPOINT n CONTROL REGISTER (UEP0 THROUGH UEP15)
this
bit
W = Writable bit
‘1’ = Bit is set
enables
U-0
—
SETUP
EPHSHK
R/W-0
Preliminary
(1)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
EPCONDIS
R/W-0
transactions. For Endpoint 0, this bit should always be
cleared
Endpoint 0 as the default control endpoint.
The EPOUTEN bit (UEPn<2>) is used to enable or dis-
able USB OUT transactions from the host. Setting this
bit enables OUT transactions. Similarly, the EPINEN bit
(UEPn<1>) enables or disables USB IN transactions
from the host.
The EPSTALL bit (UEPn<0>) is used to indicate a
STALL condition for the endpoint. If a STALL is issued
on a particular endpoint, the EPSTALL bit for that end-
point pair will be set by the SIE. This bit remains set
until it is cleared through firmware, or until the SIE is
reset.
PIC18F2450/4450
since
EPOUTEN
R/W-0
the
USB
x = Bit is unknown
EPINEN
R/W-0
specifications
DS39760C-page 135
EPSTALL
R/W-0
identify
bit 0
(1)