
Universal Serial Bus Interface – On-The-Go Module
Freescale Semiconductor
21-49
21.5.2.1.1
Endpoint Capabilities/Characteristics (Offset = 0x0)
This longword specifies static information about the endpoint. In other words, this information does not
change over the lifetime of the endpoint. DCD software must not attempt to modify this information while
the corresponding endpoint is enabled.
31 30
29
28 27 26 25 24 23 22 21 20 19 18 17 16
15
14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
offset
Mult ZLT 0
0
Maximum Packet Length
IOS 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x00
Current dTD Pointer
0
0
0
0
0
0x04
Next dTD Pointer
0
0
0
0
T
0x08
1
1
Offsets 0x08 through 0x20 contain the transfer overlay.
0
0
Total Bytes
IOC 0
0
0
MultO
0
0
Status
Buffer Pointer (Page 0)
Current Offset
0x10
Buffer Pointer (Page 1)
Reserved
0x14
Buffer Pointer (Page 2)
Reserved
0x18
Buffer Pointer (Page 3)
Reserved
Buffer Pointer (Page 4)
Reserved
0x20
Reserved
0x24
Setup Buffer Bytes 3–0
0x28
Setup Buffer Bytes 7–4
0x2C
Device controller read/write; all others read-only.
Figure 21-39. Endpoint Queue Head Layout
Table 21-42. Endpoint Capabilities/Characteristics
Field
Description
31–30
Mult
Mult. This field indicates the number of packets executed per transaction description as given by:
00 Execute N Transactions as demonstrated by the USB variable length packet protocol where N computes
using the Maximum Packet Length (dQH) and the Total Bytes field (dTD)
01 Execute 1 Transaction.
10 Execute 2 Transactions.
11 Execute 3 Transactions.
Note: Non-ISO endpoints must set Mult equal to 00. ISO endpoints must set Mult equal to 01, 10, or 11 as
needed.
MCF5329 Reference Manual, Rev 3
Содержание MCF5329
Страница 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 126: ...Enhanced Multiply Accumulate Unit EMAC 4 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 564: ...Liquid Crystal Display Controller LCDC 22 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 692: ...Programmable Interrupt Timers PIT0 PIT3 28 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 720: ...Queued Serial Peripheral Interface QSPI 30 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 790: ...Message Digest Hardware Accelerator MDHA 33 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 902: ...Register Memory Map Quick Reference A 26 Freescale Semiconductor MCF5329 Reference Manual Rev 3...