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| MC68HC912BD32 Datasheet, PDF (37/292 Pages) Freescale Semiconductor, Inc – Advance Information | |||
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Freescale Semiconductor, Inc.
Registers
Registers
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Introduction
The register block can be mapped to any 2-Kbyte boundary within the
standard 64-Kbyte address space by manipulating bits REG[15:11] in
the INITRG register. INITRG establishes the upper five bits of the
register blockâs 16-bit address. The register block occupies the first 512
bytes of the 2-Kbyte block. Default addressing (after reset) is indicated
in the table below. For additional information refer to 5 Operating Modes
and Resource Mapping.
Table 9 MC68HC912BD32 Register Map (Sheet 1 of 9)
Address Bit 7
$0000 PA7
$0001 PB7
$0002 DDA7
$0003 DDB7
$0004
0
$0005
0
$0006
0
$0007
0
$0008 PE7
$0009 DDE7
$000A NDBE
$000B SMODN
6
PA6
PB6
DDA6
DDB6
0
0
0
0
PE6
DDE6
0
MODB
5
PA5
PB5
DDA5
DDB5
0
0
0
0
PE5
DDE5
PIPOE
MODA
4
PA4
PB4
DDA4
DDB4
0
0
0
0
PE4
DDE4
NECLK
ESTR
3
PA3
PB3
DDA3
DDB3
0
0
0
0
PE3
DDE3
LSTRE
IVIS
2
PA2
PB2
DDA2
DDB2
0
0
0
0
PE2
DDE2
RDWE
EBSWAI
1
PA1
PB1
DDA1
DDB1
0
0
0
0
PE1
0
0
0
Bit 0
PA0
PB0
DDA0
DDB0
0
0
0
0
PE0
0
0
EME
Name
PORTA(1)
PORTB
DDRA
DDRB
Reserved
Reserved
Reserved
Reserved
PORTE(2)
DDRE
PEAR
MODE(3)
1-reg
MC68HC912BD32 Rev 1.0
Registers
For More Information On This Product,
Go to: www.freescale.com
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