mc68hc05p4a Freescale Semiconductor, Inc, mc68hc05p4a Datasheet - Page 18

• Manufacturer Part Number: mc68hc05p4a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Memory Map
18
$000A
$000B
$000C
$000D
$000E
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000F
Addr.
Register Name
SIOP Control Register
Port C Data Direction
Port D Data Direction
SIOP Status Register
Port A Data Direction
Port B Data Direction
Port C Data Register
Port D Data Register
Port A Data Register
Port B Data Register
Figure 2-2. I/O Registers for the MC68HC05P4A (Sheet 1 of 2)
SIOP Data Register
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
(PORTC)
(PORTD)
(PORTA)
(PORTB)
(DDRA)
(DDRB)
(DDRC)
(DDRD)
(SCR)
(SDR)
(SSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
MC68HC05P4A Data Sheet, Rev. 7.1
DDRC7
DDRA7
DDRB7
BIT 7
Bit 7
SPIF
PA7
PB7
PC7
PD7
0
0
0
0
0
0
0
0
= Unimplemented
DDRC6
DDRA6
DDRB6
DCOL
BIT 6
SPE
PA6
PB6
PC6
6
0
0
0
0
0
0
0
0
DDRC5
DDRD5
DDRA5
DDRB5
BIT 5
PA5
PB5
PC5
PD5
5
0
0
0
0
0
0
0
0
U = Unaffected
DDRC4
DDRA4
MSTR
BIT 4
PA4
Unaffected by reset
Unaffected by reset
PC4
Unaffected by reset
Unaffected by reset
Unaffected by reset
4
0
1
0
1
0
0
0
0
0
0
0
DDRA3
DDRC3
BIT 3
PA3
PC3
X = Indeterminate
3
0
0
0
1
0
0
0
0
0
0
0
0
DDRA2
DDRC2
BIT 2
PC2
PA2
Freescale Semiconductor
2
0
0
0
1
0
0
0
0
0
0
0
0
DDRA1
DDRC1
BIT 1
PA1
PC1
1
0
0
0
1
0
0
0
0
0
0
0
0
DDRC0
DDRA0
BIT 0
Bit 0
PA0
PC0
0
0
0
1
0
0
0
0
0
0
0
0