CY8C5246AXI-038 Cypress Semiconductor Corp, CY8C5246AXI-038 Datasheet - Page 39

• Manufacturer Part Number: CY8C5246AXI-038
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY8C5246AXI-038

• Lead Free Status / RoHS Status: Compliant

7.6 USB
PSoC includes a dedicated Full-Speed (12 Mbps) USB 2.0
transceiver supporting all four USB transfer types: control,
interrupt, bulk, and isochronous. The maximum data payload
size is 64 bytes for control, interrupt, and bulk endpoints and
1023 bytes for isochronous. PSoC Creator provides full
configuration support. USB interfaces to hosts through two
dedicated USBIO pins, which are detailed in the
Routing”
USB includes the following features:






Document Number: 001-55034 Rev. *G
Eight unidirectional data endpoints
One bidirectional control endpoint 0 (EP0)
Shared 512-byte buffer for the eight data endpoints
Dedicated 8-byte buffer for EP0
Three memory modes



Internal 3.3 V regulator for transceiver
(if enabled)
RxInterrupt
Request
Manual Memory Management with No DMA Access
Manual Memory Management with Manual DMA Access
Automatic Memory Management with Automatic DMA
Access
section on page 24.
RxMessage
Rx Buffer
Available
Status
(if enabled)
TxInterrupt
RxMessage14
RxMessage15
RxMessage0
RxMessage1
Request
Tx Buffer
Pending
Status
TxReq
Acceptance Code 14
Acceptance Code 15
Acceptance Code 0
Acceptance Code 1
Figure 7-19. CAN Controller Block Diagram
PRELIMINARY
“I/O System and
RTR RxMessages
TxMessage0
TxReq
TxAbort
TxMessage6
TxReq
TxAbort
TxMessage7
TxReq
TxAbort
TxMessage1
TxReq
TxAbort
0-15
Acceptance Mask 14
Acceptance Mask 15
Acceptance Mask 0
Acceptance Mask 1




Figure 7-20. USB
Internal 48 MHz oscillator that auto locks to USB bus clock,
requiring no external crystal for USB (USB equipped parts only)
Interrupts on bus and each endpoint event, with device wakeup
USB Reset, Suspend, and Resume operations
Bus powered and self powered modes
PSoC
Interrupts
(Serial Interface
Engine)
48 MHz
RxMessage
®
ErrInterrupt
(if enabled)
Arbiter
S I E
Request
IMO
Handler
Priority
Arbiter
5: CY8C52 Family Datasheet
Error Status
512 X 8
SRAM
Error Detection
Framer
Framer
Tx Error Counter
Rx Error Counter
CAN
CAN
Rx
Tx
USB
I/O
CRC
Form
ACK
Bit Stuffing
Bit Error
Overload
Arbitration
Error Active
Error Passive
Bus Off
CRC Check
Generator
CRC
D+
D–
External 22 
Resistors
Bit Timing
Page 39 of 85
WakeUp
Request
Rx
Tx
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