Digi NS9750 - Manual (Page 307)

w w w . d i g i e m b e d d e d . c o m 2 8 3
S y s t e m C o n t r o l M o d u l e
BRC0, BRC1, BRC2, and BRC3 registers
Address: A090 0004 / 0008 / 000C / 0010
The BRC[0:3] registers control the AHB arbiter bandwidth allocation scheme.
Table 172 shows how the channels are assigned in the four registers. Table 173 shows
the bit definition, or format, for each channel, using data bits [07:00] as the
example.
Register bit assignment
Register name [31:24] [23:16] [15:08] [07:00]
BRC0 Channel 0 Channel 1 Channel 2 Channel 3
BRC1 Channel 4 Channel 5 Channel 6 Channel 7
BRC2 Channel 8 Channel 9 Channel 10 Channel 11
BRC3 Channel 12 Channel 13 Channel 14 Channel 15
Table 172: BRC channel assignment
Bits Access Mnemonic Reset Description
D07 R/W CEB 0x0 Channel enable bit
0 Disable
1 Enable
D06 N/A Reserved N/A N/A
Table 173: BRC0, BRC1, BRC2, BRC3 register
HMSTR
13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 16 30
Channel 0, 4, 8, or 12 Channel 1, 5, 9, or 13
Channel 2, 6, 10, or 14
Channel 3, 7, 11, or 15
CEB Rsvd BRF