emacctl 

         Contains fields that control clock dividers for main clocks derived from the Main PLL
Module Instance Base Address Register Address
i_clk_mgr_perpllgrp 0xFFD1007C 0xFFD10094

Size: 32

Offset: 0x18

Access: RW

Access mode: PRIVILEGEMODE

Note: The processor must make a privileged bus access to this register. You can configure processor mode settings in the control registers of the ARM Cortex-A53 MPcore processor. For more information about processor modes, please refer to the ARM Infocenter.

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Reserved

emac2sel

RW 0x0

emac1sel

RW 0x0

emac0sel

RW 0x0

Reserved

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Reserved

emacctl Fields

Bit Name Description Access Reset
28 emac2sel 
Selects the source for emac2_clk as either emaca_free_clk or emacb_free_clk.
Value Description
0 EMAC A
1 EMAC B
RW 0x0
27 emac1sel 
Selects the source for emac1_clk as either emaca_free_clk or emacb_free_clk.
Value Description
0 EMAC A
1 EMAC B
RW 0x0
26 emac0sel 
Selects the source for emac0_clk as either emaca_free_clk or emacb_free_clk.
Value Description
0 EMAC A
1 EMAC B
RW 0x0