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BBus Utility
Master Reset register
Address: 9060 0000
The Master Reset register contains the reset control signals for all BBus peripherals.
All BBus peripherals, except the bridge, are held in reset after power-on reset is
deasserted. All reset bits in this register are active high.
Register bit assignment
Bits Access Mnemonic Reset Description
D31:13 R Not used 0x0 Always read as 0x0.
D12:08 N/A Reserved N/A N/A
D07 R/W I
2
C1 I
2
C Controller reset
D06 R/W 1284 1 IEEE 1284 Controller reset
D05 R/W SerD 1 Serial Controller port D reset
D04 R/W SerC 1 Serial Controller port C reset
D03 R/W SerA 1 Serial Controller port A reset
D02 R/W SerB 1 Serial Controller port B reset
D01 R/W USB 1 USB Controller reset
D00 R/W DMA 1 BBus DMA reset
Table 316: Master Reset register
I2C 1284 SerD SerC SerA
13 12 11 10 9 8 7 6 5 4 3 2 1 015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Not used
Reserved
USB DMASerBNot used