MC68HC912BL16 Datasheet, PDF (20/128 Pages) Freescale Semiconductor, Inc – 16-Bit Microcontroller

Freescale Semiconductor, Inc.
4 Register Block
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 block’s 16-bit address. The register block occupies the first 512 bytes of the 2-Kbyte block. De-
fault addressing (after reset) is indicated in the table below. For additional information refer to 5 Oper-
ating Modes and Resource Mapping.
Address
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
$0010
$0011
$0012
$0013
$0014
$0015
$0016
$0017
$0018
$0019
$001A
$001B
$001C–
$001D
$001E
$001F
$0020
$0021
Bit 7
PA7
PB7
DDA7
DDB7
0
0
0
0
PE7
DDE7
NDBE
SMODN
0
0
0
0
RAM15
REG15
EE15
0
RTIE
RTIF
CME
Bit 7
ITE6
ITD6
ITC6
0
0
IRQE
1
BKEN1
0
Table 8 MC68HC912BL16 Register Map (Sheet 1 of 5)
6
PA6
PB6
DDA6
DDB6
0
0
0
0
PE6
DDE6
0
MODB
0
0
0
0
RAM14
REG14
EE14
NDRF
RSWAI
0
FCME
6
ITE8
ITD8
ITC8
0
5
4
3
2
1
Bit 0
PA5
PA4
PA3
PA2
PA1
PA0
PB5
PB4
PB3
PB2
PB1
PB0
DDA5 DDA4 DDA3 DDA2
DDA1
DDA0
DDB5 DDB4 DDB3 DDB2
DDB1
DDB0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PE5
PE4
PE3
PE2
PE1
PE0
DDE5 DDE4 DDE3 DDE2
0
0
PIPOE NECLK LSTRE RDWE
0
0
MODA ESTR
IVIS EBSWAI
0
EME
0
PUPE
0
0
PUPB
PUPA
0
0
RDPE
0
RDPB
RDPA
0
0
RAM13
REG13
EE13
RFSTR1
RSBCK
0
FCM
5
ITEA
ITDA
ITCA
0
0
0
RAM12
REG12
EE12
RFSTR0
0
0
FCOP
4
ITEC
ITDC
ITCC
0
0
0
RAM11
REG11
0
EXSTR1
RTBYP
0
DISR
3
ITEE
ITDE
ITCE
0
0
0
0
0
0
EXSTR0
RTR2
0
CR2
2
ITF0
ITE0
ITD0
ITC0
0
0
0
0
0
0
0
MMSWAI
0
EEON
MAPROM ROMON
RTR1
RTR0
0
0
CR1
CR0
1
Bit 0
ITF2
ITF4
ITE2
ITE4
ITD2
ITD4
ITC2
ITC4
0
0
0
0
0
0
0
IRQEN
1
BKEN0
BKDBE
DLY
PSEL5
BKPM
BKMBH
0
PSEL4
0
BKMBL
0
PSEL3
BK1ALE
BK1RWE
0
PSEL2
BK0ALE
BK1RW
0
PSEL1
0
BK0RWE
0
0
0
BK0RW
Name
PORTA¹
PORTB¹
DDRA¹
DDRB¹
Reserved
Reserved
Reserved
Reserved
PORTE²
DDRE²
PEAR²
MODE³
PUCR³
RDRIV³
Reserved
Reserved
INITRM
INITRG
INITEE
MISC
RTICTL
RTIFLG
COPCTL
COPRST
ITST0
ITST1
ITST2
ITST3
Reserved
INTCR
HPRIO
BRKCT0
BRKCT1
MC68HC912BL16
20
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