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12. Serial RapidIO Registers > Serial Port Electrical Layer Registers
368
Tsi574 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
12.10.7
SRIO MAC x SerDes Configuration GlobalB
This register configures the SerDes of all four ports.
Register name: SMAC{0,2,4,6}_CFG_GBLB
Reset value: 0x0023_014F
Register offset: 130C4, 132C4, 134C4, 136C4
Bits
0
1
2
3
4
5
6
7
00:07
Reserved
08:15
Reserved
MPLL_PRESCALE[1:0]
Unused
16:23
Unused
24:31
Unused
Reserved
Bits
Name
Description
Type
Reset
Value
0:9
Reserved
Reserved
R
0
10:11
MPLL_PRES
CALE[1:0]
Controls the MPLL’s REF_CLK prescaler.
Should be set to 2’b10 in Tsi574.
Mapping:
00 = Reserved
01 = Reserved
10 = Divide REF_CLK by 2
11 = Unused
Transition only during RESET or when the MPLL Is disabled.
R/W
0x2
12:25
Unused
N/A
R/W
0xC05
26:31
Reserved
N/A
R
0x0F