Cypress Semiconductor FX2LP Instrukcja Użytkownika Pobierz pdf (Strona 5)

CY7C68013A/CY7C68014A

CY7C68015A/CY7C68016A

Document #: 38-08032 Rev. *K Page 5 of 60

The FX2LP jump instruction is encoded as follows.

If Autovectoring is enabled (AV2EN = 1 in the INTSET-UP

if the high byte (“page”) of a jump-table address is preloaded

at location 0x0044, the automatically-inserted INT2VEC byte

at 0x0045 will direct the jump to the correct address out of the

27 addresses within the page.

3.8.3 FIFO/GPIF Interrupt (INT4)

Just as the USB Interrupt is shared among 27 individual

USB-interrupt sources, the FIFO/GPIF interrupt is shared

among 14 individual FIFO/GPIF sources. The FIFO/GPIF

Interrupt, like the USB Interrupt, can employ autovectoring.

Table 3-4 shows the priority and INT4VEC values for the 14

FIFO/GPIF interrupt sources.

Table 3-3. INT2 USB Interrupts

USB INTERRUPT TABLE FOR INT2

Priority INT2VEC Value Source Notes

1 00 SUDAV Set-up Data Available

2 04 SOF Start of Frame (or microframe)

3 08 SUTOK Set-up Token Received

4 0C SUSPEND USB Suspend request

5 10 USB RESET Bus reset

6 14 HISPEED Entered high speed operation

7 18 EP0ACK FX2LP ACK’d the CONTROL Handshake

8 1C reserved

9 20 EP0-IN EP0-IN ready to be loaded with data

10 24 EP0-OUT EP0-OUT has USB data

11 28 EP1-IN EP1-IN ready to be loaded with data

12 2C EP1-OUT EP1-OUT has USB data

13 30 EP2 IN: buffer available. OUT: buffer has data

14 34 EP4 IN: buffer available. OUT: buffer has data

15 38 EP6 IN: buffer available. OUT: buffer has data

16 3C EP8 IN: buffer available. OUT: buffer has data

17 40 IBN IN-Bulk-NAK (any IN endpoint)

18 44 reserved

19 48 EP0PING EP0 OUT was Pinged and it NAK’d

20 4C EP1PING EP1 OUT was Pinged and it NAK’d

21 50 EP2PING EP2 OUT was Pinged and it NAK’d

22 54 EP4PING EP4 OUT was Pinged and it NAK’d

23 58 EP6PING EP6 OUT was Pinged and it NAK’d

24 5C EP8PING EP8 OUT was Pinged and it NAK’d

25 60 ERRLIMIT Bus errors exceeded the programmed limit

26 64

27 68 reserved

28 6C reserved

29 70 EP2ISOERR ISO EP2 OUT PID sequence error

30 74 EP4ISOERR ISO EP4 OUT PID sequence error

31 78 EP6ISOERR ISO EP6 OUT PID sequence error

32 7C EP8ISOERR ISO EP8 OUT PID sequence error

1 2 3 4 5 6 7 8 9 10 ... 59 60

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