Universal Serial Bus Interface
MCF5253 Reference Manual, Rev. 1
Freescale Semiconductor
24-23
24.6.3.5
Control Data Structure Segment Register (CTRLDSSEGMENT)
The CTRLDSSEGMENT register is not implemented on the MCF5253.
24.6.3.6
Periodic Frame List Base Address Register (PERIODICLISTBASE)
This register contains the beginning address of the Periodic Frame List in the system memory. The host
controller driver loads this register prior to starting the schedule execution by the controller. The memory
structure referenced by this physical memory pointer is assumed to be 4-Kbyte aligned. The contents of
this register are combined with the Frame Index Register (FRINDEX) to enable the controller to step
through the Periodic Frame List in sequence.
Note that this register is shared between the host and device mode functions. In host mode, it is the
PERIODICLISTBASE register; in device mode, it is the DEVICEADDR register. See
“Device Address Register (DEVICEADDR), Non-EHCI,”
for more information.
100
64 elements (256 bytes)
8
101
32 elements (128 bytes)
7
110
16 elements (64 bytes)
6
111
8 elements (32 bytes)
5
Address MBAR2 0x754 (Host Mode)
Access: User read/write
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
PERBASE
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
PERBASE (continued)
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 24-18. Periodic Frame List Base Address (PERIODICLISTBASE) Register
Table 24-20. Periodic Frame List Base Address (PERIODICLISTBASE) Register Field Descriptions
Field
Description
31–12
PERBASE
Base Address. These bits correspond to memory address signal [31:12]. Used only in host mode.
11–0
Reserved.
Table 24-19. FRINDEX N Values (continued)
USBCMD[FS]
Frame List Size
FRINDEX N value
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...
