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MC68302FC20 Datasheet(PDF) 47 Page - Motorola, Inc

Part No. MC68302FC20
Description  Integrated Multiprotocol Processor User’s Manual
Download  480 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC68302FC20 Datasheet(HTML) 47 Page - Motorola, Inc

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MC68000/MC68008 Core
MOTOROLA
MC68302 USER’S MANUAL
2-17
NOTE
All undefined and reserved bits within registers and parameter
RAM values written by the user in a given application should be
written with zero to allow for future enhancements to the device.
Table 2-9. Internal Registers
Address
Name
Width
Block
Description
Reset Value
Base + 800
Base + 802
Base + 804
Base + 808
Base + 80C
! Base + 80E
Base + 80F
Base + 810
Base + 811
RES
CMR
SAPR
DAPR
BCR
CSR
RES
FCR
RES
16
16
32
32
16
8
8
8
8
IDMA
IDMA
IDMA
IDMA
IDMA
IDMA
IDMA
IDMA
IDMA
Reserved
Channel Mode Register
Source Address Pointer
Destination Address Pointer
Byte Count Register
Channel Status Register
Reserved
Function Code Register
Reserved
0000
XXXX XXXX
XXXX XXXX
XXXX
00
XX
Base + 812 #
! Base + 814
Base + 816
! Base + 818
Base + 81A
Base + 81C
GIMR
IPR
IMR
ISR
RES
RES
16
16
16
16
16
16
Int Cont
Int Cont
Int Cont
Int Cont
Int Cont
Int Cont
Global Interrupt Mode Register
Interrupt Pending Register
Interrupt Mask Register
In-Service Register
Reserved
Reserved
0000
0000
0000
0000
Base + 81E #
Base + 820 #
Base + 822 #
Base + 824 #
Base + 826 #
Base + 828 #
Base + 82A
PACNT
PADDR
PADAT
PBCNT
PBDDR
PBDAT
RES
16
16
16
16
16
16
16
PIO
PIO
PIO
PIO
PIO
PIO
PIO
Port A Control Register
Port A Data Direction Register
Port A Data Register
Port B Control Register
Port B Data Direction Register
Port B Data Register Reserved
0000
0000
XXXX ##
0080
0000
XXXX ##
Base + 82C
Base + 82E
Base + 830 #
Base + 832 #
Base + 834 #
Base + 836 #
Base + 838 #
Base + 83A #
Base + 83C #
Base + 83E #
RES
RES
BR0
OR0
BR1
OR1
BR2
OR2
BR3
OR3
16
16
16
16
16
16
16
16
16
16
CS
CS
CS0
CS0
CS1
CS1
CS2
CS2
CS3
CS3
Reserved
Reserved
Base Register 0
Option Register 0
Base Register 1
Option Register 1
Base Register 2
Option Register 2
Base Register 3
Option Register 3
C001
DFFD
C000
DFFD
C000
DFFD
C000
DFFD


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