Full-Speed USB Controller The CXUS7717 has program memory size greater 2K works, but the CALL and GOTO instructions only have a 11-bits address range. This 11-bit address range allows a branch withi
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The CXUS7717 has program memory size greater 2K works, but the CALL and GOTO instructions only have a 11-bits address range. This 11-bit address range allows a branch within a 2K program memory page size. To allow CALL and GOTO instructions to address the entire 4K program memory address range for CX8U83M, there is another two bits to specify the program memory page. The paging bit comes from the ROMBANK bit (PUMODE[5]). When doing a CALL or GOTO instruction, the user must ensure that page bit ROMBANK are programmed so that the desired program memory page is addressed. When one of return instructions is executed, the entire 12-bit PC is POPed from the stack. Therefore, manipulation of the ROMBANK is not required for return instructions.
Support Full-Speed and Low-Speed USB 1.1 specification.
Built-in USB Transceiver and 3.3V regulator.
Support USB Suspend and Resume function.
One Control IN/OUT, three INT (IN/OUT) /Bulk (IN/OUT) endpoints.
Support PS2 compatible interface share with USB interface.
192 bytes internal SRAM.
4K x 14 internal program OTP-ROM
8-bit RISC CPU core.
Support Master/Slave SPI serial Communication Interface.
Support up to three user configured endpoints.
Up to three 64-byte data endpoints (EP0, EP1, EP2, EP3).
Internal Clock Generator
0.25% Accuracy.
Supply 24MHz or 16MHz or 12MHz clock output.
General-purpose programmable-level IO interface.
5V power supply only; GPIO support 1.8V~5.5V interface.
Supply 3.3V voltage.
Support SSC to reduce EMI.
CXUS7717 enhance PS2 mode and I/O voltage support to 1.8V~5.5V
CXUS7717 functional and coding is compatible to CX8PU83S.
CXUS7717 configuration option table, please reference page-6
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USB | |||||||||||||||||
Product Name | OTP | RAM | I/O | I/O | 3.3V | USB | Stack | EP0 | EP1 | EP2 | EP3 | EP4 | |||||
ROM | Byte | Voltage | OUT | MODE | |||||||||||||
Range | IN | OUT | IN | OUT | IN | OUT | IN | OUT | IN | OUT | |||||||
4K(OTP) | 192 | 14 | 1.8V~5.5V | 45mA | INT/BULK | 8 | 64Byte | 64Byte | 64Byte | 64Byte | 64Byte | 64Byte | 64Byte | 64Byte | NA | NA | |
6K(OTP) | 192 | 16 | 1.8V~5.5V | 45mA | INT/BULK | 5 | 8Byte | 8Byte | 8Byte | NA | 8Byte | NA | 32Byte | NA | NA | 32Byte | |
6K(OTP) | 192 | 16 | 1.8V~5.5V | 45mA | INT/BULK | 5 | 8Byte | 8Byte | 8Byte | NA | 8Byte | ||||||

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