
EZ-USB FX2 Technical Reference Manual
Page 15-32 EZ-USB FX2 Technical Reference Manual v2.1
Figure 15-27. Endpoint 2, 4, 6, 8 AUTOIN Packet Length Low
Bit 7-0 PL7:0 Packet Length Low
Low eight bits of packet length.
These registers can be used to set smaller packet sizes than the physical buffer size (refer to
the previously described EPxCFG registers). The default packet size is 512 bytes for all end-
points. Note that EP2 and EP6 can have maximum sizes of 1024 bytes, and EP4 and EP8 can
have maximum sizes of 512 bytes, to be consistent with the endpoint structure.
EP2AUTOINLENL
see Section 15.14
Endpoint 2 AUTOIN Packet Length
LOW
E621
EP4AUTOINLENL
see Section 15.14
Endpoint 4 AUTOIN Packet Length
LOW
E623
EP6AUTOINLENL
see Section 15.14
Endpoint 6 AUTOIN Packet Length
LOW
E625
EP8AUTOINLENL
see Section 15.14
Endpoint 8 AUTOIN Packet Length
LOW
E627
b7 b6 b5 b4 b3 b2 b1 b0
PL7 PL6 PL5 PL4 PL3 PL2 PL1 PL0
R/W R/W R/W R/W R/W R/W R/W R/W
0 0 0 0 0 0 0 0
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