Download Emerson KAT4000 Network Hardware User Manual

CPLD:
Boot and Reset Registers
Figure 7-1: Boot Device Redirection
H
&
!
Socketed
ROM
1:2 Boot from socket–default
5:6 Boot device redirection is disabled
;
(#$
H6/
&
H
&
&
Flash 1
Socketed
ROM
!
Flash 0
1:2 Boot from soldered flash
5:6 Boot device redirection is enabled–default
Initial
Register 7-15: Boot Device Redirection Register (BDRR) at 0xfc40,0030
7
BRB
6
5
reserved
4
3
2
1
0
BSJ
R
SKT
FL1
FL0
BRB: Boot Redirected Bit
1 The current boot device does not match the initial default boot device.
R: Reserved
BSJ: Boot from Socket Jumper
1 Active boot device is socketed flash.
SKT: Socket Boot Device
1 The board booted from socket flash.
FL1: Flash 1 Boot Device
1 The board booted from flash bank 1.
FL0: Flash 0 Boot Device
1 The board booted from flash bank 0.
7-12
KAT4000 User’s Manual
10007175-02