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參數資料
型號: MC68B912B32
廠商: Motorola, Inc.
英文描述: 2.5V 100ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference 3-SOT-23 -40 to 125
中文描述: 16位微控制器
文件頁數: 20/128頁
文件大小: 748K
代理商: MC68B912B32
MOTOROLA
20
MC68HC912B32
MC68HC912B32TS/D
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
.
Table 8 MC68HC912B32 Register Map (Sheet 1 of 5)
Address
$0000
Bit 7
PA7
6
5
4
3
2
1
Bit 0
PA0
Name
PORTA
1
PA6
PA5
PA4
PA3
PA2
PA1
$0001
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PORTB
1
$0002
DDA7
DDA6
DDA5
DDA4
DDA3
DDA2
DDA1
DDA0
DDRA
1
$0003
DDB7
DDB6
DDB5
DDB4
DDB3
DDB2
DDB1
DDB0
DDRB
1
Reserved
Reserved
Reserved
Reserved
PORTE
2
$0004
$0005
$0006
$0007
$0008
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
$0009
DDE7
DDE6
DDE5
DDE4
DDE3
DDE2
0
0
DDRE
2
$000A
NDBE
0
PIPOE
NECLK
LSTRE
RDWE
0
0
PEAR
2
MODE
3
$000B
SMODN
MODB
MODA
ESTR
IVIS
EBSWAI
0
EME
$000C
0
0
0
PUPE
0
0
PUPB
PUPA
PUCR
3
$000D
0
0
0
0
RDPE
0
RDPB
RDPA
RDRIV
3
Reserved
Reserved
INITRM
INITRG
INITEE
MISC
RTICTL
RTIFLG
COPCTL
COPRST
ITST0
ITST1
ITST2
ITST3
$000E
$000F
$0010
$0011
$0012
$0013
$0014
$0015
$0016
$0017
$0018
$0019
$001A
$001B
$001C–
$001D
$001E
$001F
$0020
$0021
$0022
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RAM15
REG15
EE15
0
RTIE
RTIF
CME
Bit 7
ITE6
ITD6
ITC6
0
RAM14
REG14
EE14
NDRF
RSWAI
0
FCME
6
ITE8
ITD8
ITC8
0
RAM13
REG13
EE13
RFSTR1
RSBCK
0
FCM
5
ITEA
ITDA
ITCA
0
RAM12
REG12
EE12
RFSTR0
0
0
FCOP
4
ITEC
ITDC
ITCC
0
RAM11
REG11
0
EXSTR1
RTBYP
0
DISR
3
ITEE
ITDE
ITCE
0
MMSWAI
EEON
ROMON
RTR0
0
CR0
Bit 0
ITF4
ITE4
ITD4
ITC4
EXSTR0
RTR2
0
CR2
2
ITF0
ITE0
ITD0
ITC0
MAPROM
RTR1
0
CR1
1
ITF2
ITE2
ITD2
ITC2
0
0
0
0
0
0
0
0
Reserved
IRQE
1
BKEN1
0
Bit 15
IRQEN
1
BKEN0
BKDBE
14
DLY
PSEL5
BKPM
BKMBH
13
0
0
0
0
0
0
0
INTCR
HPRIO
BRKCT0
BRKCT1
BRKAH
PSEL4
0
BKMBL
12
PSEL3
BK1ALE
BK1RWE
11
PSEL2
BK0ALE
BK1RW
10
PSEL1
0
BK0RWE
9
BK0RW
Bit 8
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