MC68HC705J1A

Manufacturer Part NumberMC68HC705J1A
ManufacturerMotorola
MC68HC705J1A datasheet
 


Specifications of MC68HC705J1A

CaseDIP-20L  
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Page 36/162

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Memory
Addr.
Register Name
Read:
Timer Counter Register
$0009
(TCR)
Write:
See page 114.
Reset:
Read:
IRQ Status and Control
$000A
Register (ISCR)
Write:
See page 106.
Reset:
$000B
Unimplemented
$000F
Unimplemented
Read:
Pulldown Register A
$0010
(PDRA)
Write:
See page 91.
Reset:
Read:
Pulldown Register B
$0011
(PDRB)
Write:
See page 94.
Reset:
$0012
Unimplemented
$0017
Unimplemented
Read:
EPROM Programming
$0018
Register (EPROG)
Write:
See page 39.
Reset:
Figure 2-2. I/O Register Summary (Sheet 2 of 3)
Technical Data
36
Bit 7
6
5
4
TMR7
TMR6
TMR5
TMR4
0
0
0
0
0
0
0
IRQE
R
1
0
0
0
PDIA7
PDIA6
PDIA5
PDIA4
0
0
0
0
PDIB5
PDIB4
0
0
0
0
0
0
0
0
R
R
R
0
0
0
0
= Unimplemented
R = Reserved
Memory
3
2
1
Bit 0
TMR3
TMR2
TMR1
TMR0
0
0
0
0
IRQF
0
0
0
IRQR
0
0
0
0
PDIA3
PDIA2
PDIA1
PDIA0
0
0
0
0
PDIB3
PDIB2
PDIB1
PDIB0
0
0
0
0
0
ELAT
MPGM
EPGM
R
0
0
0
0
MC68HC705J1A — Rev. 4.0
MOTOROLA