NXP Semiconductors LPC1311 User Manual

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User manual Rev. 3 — 14 June 2011 149 of 368
NXP Semiconductors
UM10375
Chapter 10: LPC13xx USB device controller
10.10.2 SIE command code registers
The SIE command code registers are used for communicating with the Serial Interface
Engine. See Section 10.11 “
Serial interface engine command description” for more
information.
10.10.2.1 USB Command Code register (USBCmdCode - 0x4001 8010)
This register is used for sending the command and write data to the SIE. The commands
written here are propagated to the SIE and executed there. After executing the command,
the register is empty, and the CCEMPTY bit of USBDevIntSt register is set. See
Section 10.11
for details. USBCmdCode is a write only register.
12 RXENDPKT_SET The current packet in the endpoint buffer is transferred to
the CPU.
0 = no effect.
1 = the corresponding bit in USBDevIntSt is set.
0
13 TXENDPKT_SET The number of data bytes transferred to the endpoint buffer
equals the number of bytes programmed in the TxPacket
length register (USBTxPLen).
0 = no effect.
1 = the corresponding bit in USBDevIntSt is set.
0
31:14 - Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
-
Table 166. USB Device Interrupt Set register (USBDevIntSet - address 0x4002 000C) bit
description
Bit Symbol Description Reset
value
Table 167. USB Command Code register (USBCmdCode - address 0x4002 0010) bit
description
Bit Symbol Value Description Reset
value
7:0 - - Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is
not defined.
-
15:8 CMD_PHASE Command phase action 0x00
0x01 Write
0x02 Read
0x05 Command
23:16 CODE_WDATA 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).
0x00
31:24 - - Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is
not defined.
-

NXP Semiconductors LPC1311 Specifications

General

Brand	NXP Semiconductors
Model	LPC1311
Category	Controller
Language	English