OM11077 NXP Semiconductors, OM11077 Datasheet - Page 353
OM11077
Manufacturer Part Number
OM11077
Description
MODULE DIMM LPC2478 ARM7
Manufacturer
NXP Semiconductors
Specifications of OM11077
Accessory Type
Module Card
For Use With/related Products
ARM-57TS-LPC2478
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-4742
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Table 326. USB Command Code register (USBCmdCode - address 0xFFE0 C210) bit description
Table 328. USB DMA Request Status register (USBDMARSt - address 0xFFE0 C250) bit allocation
Reset value: 0x0000 0000
UM10237_4
User manual
Bit
7:0
15:8
23:16 CMD_CODE/
31:24 -
Bit
Symbol
Bit
Symbol
Symbol
-
CMD_PHASE
CMD_WDATA
9.7.2 USB Command Data register (USBCmdData - 0xFFE0 C214)
9.8.1 USB DMA Request Status register (USBDMARSt - 0xFFE0 C250)
EP31
EP23
9.8 DMA registers
31
23
-
Value
-
0x01
0x02
0x05
This register contains the data retrieved after executing a SIE command. When the data is
ready to be read, the CD_FULL bit of the USBDevIntSt register is set. See
for details. USBCmdData is a read only register.
Table 327. USB Command Data register (USBCmdData - address 0xFFE0 C214) bit
The registers in this group are used for the DMA mode of operation (see
“DMA
A bit in this register associated with a non-isochronous endpoint is set by hardware when
an endpoint interrupt occurs (see the description of USBEpIntSt) and the corresponding
bit in USBEpIntEn is 0. A bit associated with an isochronous endpoint is set when the
corresponding bit in USBEpIntEn is 0 and a FRAME interrupt occurs. A set bit serves as
a flag for the DMA engine to start the data transfer if the DMA is enabled for the
corresponding endpoint in the USBEpDMASt register. The DMA cannot be enabled for
control endpoints (EP0 and EP1). USBDMARSt is a read only register.
Bit
7:0
31:8
EP30
EP22
operation”)
30
22
Symbol
CMD_RDATA
-
description
Description
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
The command phase:
Read
Write
Command
This is a multi-purpose field. When CMD_PHASE is
Command or Read, this field contains the code for the
command (CMD_CODE). When CMD_PHASE is Write,
this field contains the command write data (CMD_WDATA).
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
EP29
EP21
29
21
Rev. 04 — 26 August 2009
Description
Command Read Data.
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
EP28
EP20
28
20
Chapter 13: LPC24XX USB device controller
EP27
EP19
27
19
EP26
EP18
26
18
EP25
EP17
Reset value
NA
0x00
0x00
NA
25
17
UM10237
© NXP B.V. 2009. All rights reserved.
Section 13–14
Table 13–298
Reset value
0x00
NA
EP24
EP16
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