Datasheet

Register Block
MC68HC812A4 Data Sheet, Rev. 7
42 Freescale Semiconductor
2.3 Modes of Operation
PORTA, PORTB, PORTC, and data direction registers DDRA, DDRB, and DDRC are not in the map in
expanded and peripheral modes. PEAR, MODE, PUCR, and RDRIV are not in the map in peripheral
mode.
When EMD is set:
• PORTD and DDRD are not the map in wide expanded modes, peripheral mode, and narrow special
expanded mode.
• PORTE and DDRE are not in the map in peripheral mode and expanded modes.
• KWIED and KWIFD are not in the map in wide expanded modes and narrow special expanded
mode.
$00F2
EEPROM Test Register
(EETST)
See page 75.
Read: EEODD EEVEN MARG EECPD EECPRD 0 EECPM 0
Write:
Reset:00000000
$00F3
EEPROM Programming
Register (EEPROG)
See page 76.
Read:
BULKP 0 0 BYTE ROW ERASE EELAT EEPGM
Write:
Reset:10000000
$00F4 Reserved RRRRRRRR
↓↓
$01FF Reserved RRRRRRRR
Addr.Register Name Bit 7654321Bit 0
= Unimplemented
R
= Reserved U = Unaffected
Figure 2-1. Register Map (Sheet 14 of 14)