MCF5441X Tower Module Hardware Specification
Page 17 of 31
4.13.3
Serial Configuration (J5 OFF:OFF)
If the BOOTMOD pins are 11 during reset, then the chip configuration after reset is determined by
data obtained from an external SPI memory through serial boot using the SBF_DI, SBF_DO, SBF_CS,
and SBF_CLK signals. The internal configuration signals are driven to reflect the data being received
from the external SPI memory to allow for module configuration. See Table below.
BYTE Address
Data Contents
0x0
{0000, BLDIV[3:0]}
0x1
BLL[7:0]
0x2
BLL[15:8]
0x3
RCON[7:0]
0x4
RCON[15:8]
0x5
RCON[23:16]
0x6
RCON[31:24]
Table 11 - Serial Boot Facility 7-BYTE Header