CY7C68013A, CY7C68014A
CY7C68015A, CY7C68016A
The FX2LP jump instruction is encoded as follows:
Table 3. INT2 USB Interrupts
USB INTERRUPT TABLE FOR INT2
Source
Priority
1
INT2VEC Value
Notes
00
04
08
0C
10
14
18
1C
20
24
28
2C
30
34
38
3C
40
44
48
4C
50
54
58
5C
60
64
68
6C
70
74
78
7C
SUDAV
Setup Data Available
2
SOF
Start of Frame (or microframe)
Setup Token Received
3
SUTOK
4
SUSPEND
USB RESET
HISPEED
EP0ACK
USB Suspend request
5
Bus reset
6
Entered high speed operation
FX2LP ACK’d the CONTROL Handshake
reserved
7
8
9
EP0-IN
EP0-OUT
EP1-IN
EP1-OUT
EP2
EP0-IN ready to be loaded with data
EP0-OUT has USB data
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
EP1-IN ready to be loaded with data
EP1-OUT has USB data
IN: buffer available. OUT: buffer has data
IN: buffer available. OUT: buffer has data
IN: buffer available. OUT: buffer has data
IN: buffer available. OUT: buffer has data
IN-Bulk-NAK (any IN endpoint)
reserved
EP4
EP6
EP8
IBN
EP0PING
EP1PING
EP2PING
EP4PING
EP6PING
EP8PING
ERRLIMIT
EP0 OUT was Pinged and it NAK’d
EP1 OUT was Pinged and it NAK’d
EP2 OUT was Pinged and it NAK’d
EP4 OUT was Pinged and it NAK’d
EP6 OUT was Pinged and it NAK’d
EP8 OUT was Pinged and it NAK’d
Bus errors exceeded the programmed limit
reserved
reserved
EP2ISOERR
EP4ISOERR
EP6ISOERR
EP8ISOERR
ISO EP2 OUT PID sequence error
ISO EP4 OUT PID sequence error
ISO EP6 OUT PID sequence error
ISO EP8 OUT PID sequence error
If Autovectoring is enabled (AV2EN = 1 in the INTSET-UP register), the FX2LP substitutes its INT2VEC byte. Therefore, if the high
byte (“page”) of a jump table address is preloaded at the location 0x0044, the automatically inserted INT2VEC byte at 0x0045 directs
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, similar to the USB Interrupt, can employ autovectoring. Table 4 on page 6 shows the
priority and INT4VEC values for the 14 FIFO/GPIF interrupt sources.
Document #: 38-08032 Rev. *N
Page 5 of 62
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