UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
119 of 1269
NXP Semiconductors
UM10503
Chapter 11: LPC43xx Clock Generation Unit (CGU)
11.6.11 BASE_PERIPH_CLK control register
This register controls base clock 2 to the SGPIO block.
Table 85.
BASE_USB0_CLK control register (BASE_USB0_CLK, address 0x4005 0060) bit
description
Bit
Symbol
Value
Description
Reset
value
Access
0
PD
Output stage power down
0
R/W
0
Output stage enabled (default)
1
power-down
10:1
-
Reserved
-
-
11
AUTOBLOCK
Block clock automatically during frequency
change
0
R/W
0
Autoblocking disabled
1
Autoblocking enabled
23:12
-
Reserved
-
-
28:24
CLK_SEL
Clock-source selection.
0x07
R/W
0x07
PLL0USB (default)
31:29
-
Reserved
-
-
Table 86.
BASE_PERIPH_CLK control register (BASE_PERIPH_CLK, address 0x4005 0064)
bit description
Bit
Symbol
Value
Description
Reset
value
Access
0
PD
Output stage power down
0
R/W
0
Output stage enabled (default)
1
power-down
10:1
-
Reserved
-
-
11
AUTOBLOCK
Block clock automatically during frequency
change
0
R/W
0
Autoblocking disabled
1
Autoblocking enabled
23:12
-
Reserved
-
-