
Chapter 15. Registers Page 15-105
15.13.7 512-byte Endpoint 8/Slave FIFO Buffer
Figure 15-118. 512-byte EP8/Slave FIFO Buffer
Bit 7-0 D7:0 EP8 Data
512-byte EP8 buffer.
15.14 Synchronization Delay
Under certain conditions, some read and write accesses to FX2 registers must be separated by a
synchronization delay. The delay is necessary only under the following conditions:
• Between a write to any register in the 0xE600-0xE6FF range and a write to one of the reg-
isters in Table 15-20.
• Between a write to one of the registers in Tabl e15-20 and a read from any register in the
0xE600-0xE6FF range.
EP8FIFOBUF 512-byte EP8/Slave FIFO Buffer FC00-FDFF
b7 b6 b5 b4 b3 b2 b1 b0
D7 D6 D5 D4 D3 D2 D1 D0
R/W R/W R/W R/W R/W R/W R/W R/W
X X X X X X X X
Table 15-20. Registers Which Require a Synchronization Delay
FIFORESET FIFOPINPOLAR
INPKTEND EPxBCH:L
EPxFIFOPFH:L EPxAUTOINLENH:L
EPxFIFOCFG EPxGPIFFLGSEL
PINFLAGSAB PINFLAGSCD
EPxFIFOIE EPxFIFOIRQ
GPIFIE GPIFIRQ
UDMACRCH:L GPIFADRH:L
GPIFTRIG EPxGPIFTRIG
OUTPKTEND REVCTL
GPIFTCB3 GPIFTCB2
GPIFTCB1 GPIFTCB0
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