Cypress Semiconductor FX2LP Technical Information PDF herunterladen (Seite 455)

EZ-USB FX2 Technical Reference Manual v2.1 Appendix C - 29

EZ-USB FX2 Registers & Buffers

E6A3 1 EP2CS Endpoint 2 Control and Status 0 NPAK2 NPAK1 NPAK0 FULL EMPTY 0 STALL 00101000 rrrrrrrb NPAK2:0=number of packets

in the FIFO, 0-4.

NPAK1:0=number of packets

in the FIFO, 0-2"

OUT: Packets received from

USB. IN: Packets loaded and

armed.

FULL / EMPTY status bits du-

plicated in SFR space,

EP2468STAT

E6A4 1 EP4CS Endpoint 4 Control and Status 0 0 NPAK1 NPAK0 FULL EMPTY 0 STALL 00101000 rrrrrrrb

E6A5 1 EP6CS Endpoint 6 Control and Status 0 NPAK2 NPAK1 NPAK0 FULL EMPTY 0 STALL 00000100 rrrrrrrb

E6A6 1 EP8CS Endpoint 8 Control and Status 0 0 NPAK1 NPAK0 FULL EMPTY 0 STALL 00000100 rrrrrrrb

E6A7 1 EP2FIFOFLGS Endpoint 2 slave FIFO Flags 0 0 0 0 0 PF EF FF 00000010 R Not affected by FIFOPINPO-

LAR bits.

duplicated in SFR space,

EP24FIFOFLGS and

EP68FIFOFLGS

E6A8 1 EP4FIFOFLGS Endpoint 4 slave FIFO Flags 0 0 0 0 0 PF EF FF 00000010 R

E6A9 1 EP6FIFOFLGS Endpoint 6 slave FIFO Flags 0 0 0 0 0 PF EF FF 00000110 R

E6AA 1 EP8FIFOFLGS Endpoint 8 slave FIFO Flags 0 0 0 0 0 PF EF FF 00000110 R

E6AB 1 EP2FIFOBCH Endpoint 2 slave FIFO total byte

count H

0 0 0 BC12 BC11 BC10 BC9 BC8 00000000 R

OUT: full byte count; IN: bytes

in current packet

EP2 max 4096

EP$ max 1024

EP6 max 2048

EP* max 1024

E6AC 1 EP2FIFOBCL Endpoint 2 slave FIFO total byte

count L

BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 00000000 R

E6AD 1 EP4FIFOBCH Endpoint 4 slave FIFO total byte

count H

0 0 0 0 0 BC10 BC9 BC8 00000000 R

E6AE 1 EP4FIFOBCL Endpoint 4 slave FIFO total byte

count L

BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 00000000 R

E6AF 1 EP6FIFOBCH Endpoint 6 slave FIFO total byte

count H

0 0 0 0 BC11 BC10 BC9 BC8 00000000 R

E6B0 1 EP6FIFOBCL Endpoint 6 slave FIFO total byte

count L

BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 00000000 R

E6B1 1 EP8FIFOBCH Endpoint 8 slave FIFO total byte

count H

0 0 0 0 0 BC10 BC9 BC8 00000000 R

E6B2 1 EP8FIFOBCL Endpoint 8 slave FIFO total byte

count L

BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 00000000 R

E6B3 1 SUDPTRH Setup Data Pointer high ad-

dress byte

A15 A14 A13 A12 A11 A10 A9 A8 xxxxxxxx RW

E6B4 1 SUDPTRL Setup Data Pointer low address

byte

A7 A6 A5 A4 A3 A2 A1 0 xxxxxxx0 bbbbbbbr Must be word-aligned (i.e.,

must point to even-numbered

addresses)

E6B5 1 SUDPTRCTL Setup Data Pointer Auto Mode 0 0 0 0 0 0 0 SDPAUTO 00000001 RW Clear b0 to supply SUDPTR

length (override USB length)

2 reserved

E6B8 8 SETUPBUF 8 bytes of SETUP data D7 D6 D5 D4 D3 D2 D1 D0 xxxxxxxx R

SETUPDAT[0] =

bmRequestType

D7: Data Transfer Direction;

0=host-to-device, 1=device-

to-host

D6…5 Type; 0=standard,

1=class, 2=vendor, 3=re-

served

D4…0 Recipient; 0=device,

1=interface, 2=endpoint,

3=other, 4…31=reserved

SETUPDAT[1] = bmRequest specific request

SETUPDAT[2:3] = wValue word-sized field that varies

according to request

Hex Size Name Description b7 b6 b5 b4 b3 b2 b1 b0 Default Access Notes

1 2 ... 450 451 452 453 454 455 456 457 458 459 460

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