Universal Serial Bus OTG Controller
UG0331 User Guide Revision 15.0 370
10.3.15 USB System Registers
These registers are in the System registers block for the SmartFusion2 devices. This subset of registers,
and in some cases bit fields, control the configuration and behavior of the USB controller.
10.3.15.1 MASTER_WEIGHT1_CR Register USB Related Bit Definitions
Table 312 • MASTER_WEIGHT1_CR
Bit
Number Name Address
Reset
Value Function
[9:5] SW_WEIGHT_USB 0x40038040 0x1 Configures the round robin weightage for the USB
master from 1 to 32. The configurable weightage values
are as follows:
00000: USB master weightage 32
00001: USB master weightage 1
00010: USB master weightage 2
00011: USB master weightage 3
00100: USB master weightage 4
00101: USB master weightage 5
00110: USB master weightage 6
00111: USB master weightage 7
01000: USB master weightage 8
01001: USB master weightage 9
01010: USB master weightage 10
01011: USB master weightage 11
01100: USB master weightage 12
01101: USB master weightage 13
01110: USB master weightage 14
01111: USB master weightage 15
10000: USB master weightage 16
10001: USB master weightage 17
10010: USB master weightage 18
10011: USB master weightage 19
10100: USB master weightage 20
10101: USB master weightage 21
10110: USB master weightage 22
10111: USB master weightage 23
11000: USB master weightage 24
11001: USB master weightage 25
11010: USB master weightage 26
11011: USB master weightage 27
11100: USB master weightage 28
11101: USB master weightage 29
11110: USB master weightage 30
11111: USB master weightage 31
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