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Universal Serial Bus Interface
MCF5253 Reference Manual, Rev. 1
Freescale Semiconductor
24-15
24.6.3
Operational Registers
The operational registers are comprised of dynamic control or status registers that may be read-only,
read/write, or read/write-1-to-clear. The following sections define the operational registers.
24.6.3.1
USB Command Register (USBCMD)
The module executes the command indicated in this register.
Table 24-14. Device Control Capability Parameters (DCCPARAMS) Register Field Descriptions
Field
Description
31–9
Reserved.
8
HC
Host Capable. Always 1 indicating the controller can operate as an EHCI compatible USB 2.0 host
7
DC
Device Capable. Always 1, indicating the controller can operate as an USB 2.0 device.
0 No device capability (host only).
1 Device capability.
6–5
Reserved.
4–0
DEN
Device Endpoint Number. This field indicates the number of endpoints built into the device controller. Always 0x4.
Address MBAR2 0x740
Access: User read/write
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
ITC
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
FS2 ATDTW SUTW
ASPE
ASP
LR
IAA
ASE
PSE
FS1
FS0
RST
RS
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 24-14. USB Command Register (USBCMD) Register
Summary of Contents for MCF5253
Page 1: ...Document Number MCF5253RM Rev 1 08 2008 MCF5253 Reference Manual...
Page 26: ...MCF5253 Reference Manual Rev 1 xxvi Freescale Semiconductor...
Page 32: ...MCF5253 Reference Manual Rev 1 xxxii Freescale Semiconductor...
Page 46: ...MCF5253 Introduction MCF5253 Reference Manual Rev 1 1 14 Freescale Semiconductor...
Page 62: ...Signal Description MCF5253 Reference Manual Rev 1 2 16 Freescale Semiconductor...
Page 98: ...Instruction Cache MCF5253 Reference Manual Rev 1 5 10 Freescale Semiconductor...
Page 104: ...Static RAM SRAM MCF5253 Reference Manual Rev 1 6 6 Freescale Semiconductor...
Page 128: ...Synchronous DRAM Controller Module MCF5253 Reference Manual Rev 1 7 24 Freescale Semiconductor...
Page 144: ...Bus Operation MCF5253 Reference Manual Rev 1 8 16 Freescale Semiconductor...
Page 176: ...System Integration Module SIM MCF5253 Reference Manual Rev 1 9 32 Freescale Semiconductor...
Page 198: ...Analog to Digital Converter ADC MCF5253 Reference Manual Rev 1 12 6 Freescale Semiconductor...
Page 246: ...DMA Controller MCF5253 Reference Manual Rev 1 14 18 Freescale Semiconductor...
Page 282: ...UART Modules MCF5253 Reference Manual Rev 1 15 36 Freescale Semiconductor...
Page 344: ...Audio Interface Module AIM MCF5253 Reference Manual Rev 1 17 46 Freescale Semiconductor...
Page 362: ...I2 C Modules MCF5253 Reference Manual Rev 1 18 18 Freescale Semiconductor...
Page 370: ...Boot ROM MCF5253 Reference Manual Rev 1 19 8 Freescale Semiconductor...