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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
648 of 1441
NXP Semiconductors
UM10503
Chapter 25: LPC43xx/LPC43Sxx USB0 Host/Device/OTG controller
Table 463. System bus interface configuration register (SBUSCFG - address 0x4000 6090) bit description
Bit
Symbol
Value
Description
Access
Reset
value
2:0
AHB_BRST
The burst length used by the USB controller can be selected using
these bits. This field controls the RX and TX burst length in
BURSTSIZE register.
R/W
0
0x0
INCR burst of unspecified length
0x1
INCR4, non-multiple transfers of INCR4 will be decomposed into
singles
0x2
INCR8, non-multiple transfers of INCR8, will be decomposed into
INCR4 or singles
0x3
INCR16, non-multiple transfers of INCR16, will be decomposed
into INCR8, INCR4, or singles
0x4
This value is reserved and should not be used
0x5
INCR4, non-multiple transfers of INCR4 will be decomposed into
smaller unspecified length bursts
0x6
INCR8, non-multiple transfers of INCR8 will be decomposed into
smaller unspecified length bursts
0x7
INCR16, non-multiple transfers of INCR16 will be decomposed into
smaller unspecified length bursts.
31:3
-
Reserved
Not used in device mode. Writing a one to this bit when the device
mode is selected, will have undefined results.
-
-
Table 464. CAPLENGTH register (CAPLENGTH - address 0x4000 6100) bit description
Bit
Symbol
Description
Reset
value
Access
7:0
CAPLENGTH
Indicates offset to add to the register base
address at the beginning of the Operational
Register
0x40
RO
23:8
HCIVERSION
BCD encoding of the EHCI revision number
supported by this host controller.
0x100
RO
31:24
-
These bits are reserved and should be set to
zero.
-
-
Table 465. HCSPARAMS register (HCSPARAMS - address 0x4000 6104) bit description
Bit
Symbol
Description
Reset
value
Access
3:0
N_PORTS
Number of downstream ports. This field specifies
the number of physical downstream ports
implemented on this host controller.
0x1
RO
4
PPC
Port Power Control. This field indicates whether
the host controller implementation includes port
power control.
0x1
RO
7:5
-
These bits are reserved and should be set to zero. -
-
11:8
N_PCC
Number of Ports per Companion Controller. This
field indicates the number of ports supported per
internal Companion Controller.
0x0
RO