UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013 172 of 841
NXP Semiconductors
UM10360
Chapter 10: LPC176x/5x Ethernet
10.14.5 Power-Down Register (PowerDown - 0x5000 0FF4)
The Power-Down register (PowerDown) is used to block all AHB accesses except
accesses to the Power-Down register. The register has an address of 0x5000 0FF4. The
bit definition of the register is listed in Table 174
.
Setting the bit will return an error on all read and write accesses on the MACAHB interface
except for accesses to the Power-Down register.
Table 174. Power-Down register (PowerDown - address 0x5000 0FF4) bit description
Bit Symbol Function Reset
value
30:0 - Unused 0x0
31 PowerDownMACAHB If true, all AHB accesses will return a read/write error,
except accesses to the Power-Down register.
0
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