5 usb endpoint fifo registers, Usb endpoint fifo registers -34, Usb endpoint – Freescale Semiconductor MCF5480 User Manual
Page 908
MCF548x Reference Manual, Rev. 3
29-34
Freescale Semiconductor
When the host directs a SYNCH_FRAME control read query at this register’s endpoint, the contents of
this register are returned to the host. FRMNUM may range from 0x000 through 0x7FF.
29.2.5
USB Endpoint FIFO Registers
These registers are used to configure and access the FIFOs for each of the USB endpoints.
29.2.5.1
USB Endpoint n Status and Control Register (EPnSTAT)
The EPnSTAT register allows the user to configure specific aspects of an individual endpoint.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
0
0
0
0
0
FRMNUM
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Reg
Addr
MBAR + 0xB13E (EP1OUTSFR); 0xB16E (EP2OUTSFR); 0xB19E (EP3OUTSFR); 0xB1CE (EP4OUTSFR);
0xB1FE (EP5OUTSFR); 0xB22E (EP6OUTSFR)
Figure 29-39. Endpoint n Sync Frame Register OUT (EPnOUTSF)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
0
0
0
0
0
FRMNUM
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Reg
Addr
MBAR + 0xB156 (EP1NSFR); 0xB186 (EP2NSFR); 0xB1B6 (EP3INSFR); 0xB1E6 (EP4INSFR);
0xB216 (EP5INSFR); 0xB246 (EP6INSFR)
Figure 29-40. Endpoint n Sync Frame Register IN (EPnINSFR)
Table 29-35. EPnOUTSFR and EPnINSFR Field Descriptions
Bits
Name
Description
15–11
—
Reserved, should be cleared.
10–0
FRMNUM
Frame number. Synchronization frame number for the designated endpoint.