MC9S12HZ256 Datasheet, PDF (667/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Appendix G Detailed Register Map
Appendix G
Detailed Register Map
The following tables show the detailed register map of the MC9S12HZ256.
0x0000–0x000F MEBI Map 1 of 3 (HCS12 Multiplexed External Bus Interface)
Address
0x0000
0x0001
0x0002
0x0003
0x0004–
0x0007
0x0008
0x0009
0x000A
0x000B
0x000C
0x000D
0x000E
0x000F
Name
PORTA
PORTB
DDRA
DDRB
Reserved
PORTE
DDRE
PEAR
MODE
PUCR
RDRIV
EBICTL
Reserved
7
R
Bit 7
W
R
Bit 7
W
R
Bit 7
W
R
Bit 7
W
R
0
W
R
Bit 7
W
R
Bit 7
W
R
NOACCE
W
R
MODC
W
R
PUPKE
W
R
RDPK
W
R
0
W
R
0
W
6
6
6
6
6
0
6
6
0
MODB
0
0
0
0
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
0
0
0
5
4
3
5
4
3
PIPOE
MODA
0
0
0
NECLK
0
PUPEE
RDPE
0
LSTRE
IVIS
0
0
0
0
0
0
2
2
2
2
2
0
2
Bit 2
RDWE
0
0
0
0
0
1
1
1
1
1
0
Bit 1
0
0
EMK
PUPBE
RDPB
0
0
0
Bit 0
Bit 0
Bit 0
Bit 0
0
Bit 0
0
0
EME
PUPAE
RDPA
ESTR
0
0x0010–0x0014 MMC Map 1 of 4 (HCS12 Module Mapping Control)
Address
0x0010
0x0011
0x0012
0x0013
0x0014
Name
INITRM
INITRG
INITEE
MISC
MTST0
Test Only
7
R
RAM15
W
R
0
W
R
EE15
W
R
0
W
R Bit 7
W
6
RAM14
REG14
EE14
0
6
5
RAM13
REG13
EE13
0
5
4
RAM12
REG12
EE12
0
4
3
2
0
RAM11
0
REG11
0
EE11
1
0
0
RAMHAL
0
0
0
EEON
EXSTR1 EXSTR0 ROMHM ROMON
3
2
1
Bit 0
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
667