Technical data

Memory Maps and Registers

MVME2502 Installation and Use (6806800R96B)

105

5.5.11 PLD Boot Bank Register

The MVME2502 PLD provides an 8-bit register which is used to declare successful U-Boot

loading, indicating the SPI boot bank priority and actual SPI bank it booted from.

Field Description

BDFAIL_N TSI148 BDFAIL_N Pin out

1 - No TSI Fail

0 - TSI Fail

NORMAL_ENV Normal Environment Switch Indicator

1 - Use safe ENV

0 - Use normal ENV

SCON System Controller Indicator

1 - System Controller

0 - Non-system Controller

Table 5-14 PLD Boot Bank Register

REG PLD Boot Bank - 0xFFDF0050

Bit76543210

Field SPI_GOODReg

(write 0xA4 into this reg to indicate successful loading of the U-

Boot.

BOOT_B

LOCK_A

BOOT_S

OPER R/W R R

RESET000000X0