MC9S12A32 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MC9S12A32' PDF : 128 Pages View PDF
MC9S12DJ64 Device User Guide — V01.20
1.5.1 Detailed Register Map
$0000 - $000F
MEBI map 1 of 3 (HCS12 Multiplexed External Bus Interface)
Address
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
Name
PORTA
PORTB
DDRA
DDRB
Reserved
Reserved
Reserved
Reserved
PORTE
DDRE
PEAR
MODE
PUCR
RDRIV
EBICTL
Reserved
Bit 7
Read:
Write:
Bit 7
Read: Bit 7
Write:
Read:
Write: Bit 7
Read:
Write:
Bit 7
Read: 0
Write:
Read: 0
Write:
Read: 0
Write:
Read: 0
Write:
Read:
Write: Bit 7
Read:
Write:
Bit 7
Read: NOACCE
Write:
Read:
Write: MODC
Read:
Write:
PUPKE
Read: RDPK
Write:
Read: 0
Write:
Read: 0
Write:
Bit 6
6
6
6
6
0
0
0
0
6
6
0
MODB
0
0
0
0
Bit 5
5
5
5
5
0
0
0
0
5
5
PIPOE
MODA
0
0
0
0
Bit 4
4
4
4
4
0
0
0
0
Bit 3
3
3
3
3
0
0
0
0
4
3
4
3
NECLK
0
PUPEE
RDPE
0
LSTRE
IVIS
0
0
0
0
0
Bit 2
2
2
2
2
0
0
0
0
2
Bit 2
RDWE
0
0
0
0
0
Bit 1
1
1
1
1
0
0
0
0
Bit 1
0
0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
0
0
0
0
Bit 0
0
0
EMK
EME
PUPBE PUPAE
RDPB
0
0
RDPA
ESTR
0
$0010 - $0014
MMC map 1 of 4 (HCS12 Module Mapping Control)
Address
$0010
$0011
Name
INITRM
INITRG
Read:
Write:
Read:
Write:
Bit 7
RAM15
0
Bit 6
RAM14
REG14
Bit 5
RAM13
REG13
Bit 4
RAM12
REG12
Bit 3
RAM11
REG11
Bit 2
0
0
Bit 1
0
0
Bit 0
RAMHAL
0
30
Share Link: 
