mc68hc05j1avp Freescale Semiconductor, Inc, mc68hc05j1avp Datasheet - Page 30

• Manufacturer Part Number: mc68hc05j1avp
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Memory
Technical Data
30
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
Addr.
Data Direction Register A
Data Direction Register B
Timer Status and Control
Timer Counter Register
IRQ Status and Control
Port A Data Register
Port B Data Register
Register (TSCR)
Register (ISCR)
Register Name
Unimplemented
Unimplemented
Unimplemented
Unimplemented
See page 62.
See page 67.
See page 63.
See page 68.
See page 73.
See page 75.
See page 45.
(PORTB)
(TCNTR)
(PORTA)
(DDRA)
(DDRB)
Figure 2-2. I/O Register Summary (Sheet 1 of 2)
Freescale Semiconductor, Inc.
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
For More Information On This Product,
Write:
Write:
Write:
Write:
Write:
Write:
Write:
DDRA7
IRQE
Bit 7
TOF
Bit 7
PA7
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0
0
0
0
0
0
1
= Unimplemented
DDRA6
IRQF
RTIF
Bit 6
PA6
6
0
0
0
0
0
0
0
Memory
DDRA5
DDRB5
TOIE
Bit 5
PA5
PB5
5
0
0
0
0
0
0
DDRA4
DDRB4
Unaffected by reset
Unaffected by reset
RTIE
Bit 4
PB4
PA4
R
4
0
0
0
0
0
0
= Reserved
DDRA3
DDRB3
TOFR
Bit 3
PB3
PA3
3
0
0
0
0
0
0
0
MC68HC05J1A — Rev. 3.0
DDRA2
DDRB2
RTIFR
PB2
Bit 2
PA2
2
0
0
0
0
0
0
0
U = Unaffected
DDRA1
DDRB1
IRQR
Bit 1
PA1
PB1
RT1
1
0
0
1
0
0
MOTOROLA
DDRA0
DDRB0
Bit 0
Bit 0
PA0
PB0
RT0
0
0
1
0
0
0