XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 42
XC912BC32CFU8
Manufacturer Part Number
XC912BC32CFU8
Description
M68HC12B Family Data Sheet
Manufacturer
Motorola Semiconductor Products
Datasheet
1.XC912BC32CFU8.pdf
(362 pages)
- Current page: 42 of 362
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Register Block
2.2 Registers
Data Sheet
42
Notes:
Addr.
$000C
$000D
$0000
$0001
$0002
$0003
$0004
$0007
$0008
$0009
$000A
$000B
$000E
↓
1. Available only on MC68HC912B32 and MC68HC912BC32 devices.
2. Available only on MC68HC912B32 and MC68HC12BE32 devices.
3. Available only on MC68HC(9)12BC32 devices.
Port E Assignment Register
Register Name
Data Direction Register A
Data Direction Register B
Data Direction Register E
Reduced Drive Register
Pullup Control Register
Port A Data Register
Port B Data Register
Port E Data Register
Mode Register
See page 88.
See page 89.
See page 89.
See page 90.
See page 90.
See page 91.
See page 92.
See page 81.
See page 94.
See page 95.
Reserved
Reserved
Reserved
(PORTA)
(PORTB)
(PORTE)
(RDRIV)
(MODE)
(DDRA)
(DDRB)
(DDRE)
(PUCR)
(PEAR)
Figure 2-1. Register Map (Sheet 1 of 19)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
SMODN
DDA7
DDB7
DDE7
NDBE
Bit 7
PA7
PB7
PE7
U
U
R
R
R
0
0
0
0
1
0
0
0
0
0
= Unimplemented
Register Block
CGMTE
MODB
DDA6
DDB6
DDE6
PA6
PB6
PE6
U
U
R
R
R
6
0
0
0
0
0
0
0
0
0
0
PIPOE
MODA
DDA5
DDB5
DDE5
PA5
PB5
PE5
U
U
R
R
R
5
0
0
0
0
0
0
0
0
0
0
NECLK
PUPE
DDA4
DDB4
DDE4
ESTR
PA4
PB4
PD4
U
U
R
R
R
R
4
0
0
0
0
1
1
1
0
0
= Reserved
LSTRE
RDPE
DDA3
DDB3
DDE3
PD3
PA3
PB3
IVIS
U
U
R
R
R
3
0
0
0
1
0
1
0
0
0
M68HC12B Family — Rev. 8.0
EBSWAI
RDWE
DDA2
DDB2
DDE2
PD2
PA2
PB2
U
U
R
R
R
2
0
0
0
0
0
0
0
0
0
0
U = Unaffected
DDA1
DDB1
PUPB
RDPB
PD1
PA1
PB1
U
U
R
R
R
1
0
0
0
0
0
0
0
0
0
0
0
MOTOROLA
DDA0
DDB0
PUPA
RDPA
Bit 0
EME
PA0
PB0
PD0
U
U
R
R
R
0
0
0
0
0
0
0
1
0
0
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