MC68HC12 Datasheet, PDF (134/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

EEPROM Memory
9.7 Shadow Word Mapping
The shadow word is mapped to location $_FC0 and $_FC1 when the
NOSHW bit in EEMCR register is zero. The value in the shadow word is
loaded to the EEMCR, EEDIVH and EEDIVL after reset. Table 9-4
shows the mapping of each bit from shadow word to the registers.
Table 9-4. Shadow word mapping
Shadow word location
Register / Bit
$_FC0 bit 7
EEMCR / NOBDML
$_FC0, bit 6
EEMCR / NOSHW
$_FC0, bit 5
EEMCR / bit 5⁽¹⁾
$_FC0, bit 4
EEMCR / bit 4⁽¹⁾
$_FC0, bit 3:2
not mapped⁽²⁾⁾
$_FC0, bit 1:0
EEDIVH / bit 1:0
$_FC1, bit 7:0
EEDIVCLK / bit 7:0
1. Reserved for testing. Must be set to one in user application.
2. Reserved. Must be set to one in user application for future compatibility.
Technical Data
134
EEPROM Memory
MC68HC912DT128A — Rev 4.0
MOTOROLA