OM13008,598 NXP Semiconductors, OM13008,598 Datasheet - Page 28

• Manufacturer Part Number: OM13008,598
• Description: BOARD LPC XPRESSO LPC122X
• Manufacturer: NXP Semiconductors
• Series: LPCXpressor

Specifications of OM13008,598

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-6642; OM13008

NXP Semiconductors
UM10441
User manual
4.5.26 System tick counter calibration register
4.5.27 AHB matrix master priority register
Table 32.
This register determines the value of the SYST_CALIB register (see
Table 33.
The AHB matrix master priority register determines the priority with which the AHB
masters can access the bus.
Bit
1:0
3:2
4
31:5 -
Bit
25:0
31:26
Symbol
BODRSTLEV
BODINTVAL
BODRSTENA
Symbol
CAL
-
BOD control register (BODCTRL, address 0x4004 8150) bit description
System tick timer calibration register (SYSTCKCAL, address 0x4004 8154) bit
description
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Value Description
0x0
0x1
0x2
0x3
0x0
0x1
0x2
0x3
0
1
-
Rev. 1.1 — 10 March 2011
Description
System tick timer calibration value
Reserved
BOD reset level
Reserved. Writing 00 to these bits will not change the BOD
reset level.
Level 1: The reset assertion threshold voltage is 2.038 V;
the reset de-assertion threshold voltage is 2.180 V.
Level 2: The reset assertion threshold voltage is 2.336 V;
the reset de-assertion threshold voltage is 2.471 V.
Level 3: The reset assertion threshold voltage is 2.624 V;
the reset de-assertion threshold voltage is 2.761 V.
BOD interrupt level
Reserved. Writing 00 to these bits will not change the
interrupt level.
Level 1:The interrupt assertion threshold voltage is
2.248 V; the interrupt de-assertion threshold voltage is
2.385 V.
Level 2: The interrupt assertion threshold voltage is
2.541 V; the interrupt de-assertion threshold voltage is
2.669 V.
Level 3: The interrupt assertion threshold voltage is
2.828 V; the interrupt de-assertion threshold voltage is
2.929 V.
BOD reset enable
Disable reset function.
Enable reset function.
Reserved
Chapter 4: LPC122x System control (SYSCON)
Table
UM10441
© NXP B.V. 2011. All rights reserved.
253).
Reset value
0x00
0x00
28 of 442
Reset
value
-
-
-
-