MC68HC05JJ6 Datasheet, PDF (34/216 Pages) Freescale Semiconductor, Inc – General Release Specification Microcontrollers

Memory
Addr.
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
Register
Bit 7
Read: 0
Port A Data, PORTA
Write:
Read:
Port B Data, PORTB
PB7
Write:
Read:
* Port C Data, PORTC
PC7
Write:
Read:
Analog MUX Register, AMUX
HOLD
Write:
Read: 0
Port A Data Direction, DDRA
Write:
Read:
Port B Data Direction, DDRB
DDRB7
Write:
Read:
* Port C Data Direction, DDRC
DDRC7
Write:
Read:
Unimplemented
Write:
Core Timer Status/Control, ^{Read: CTOF}
CTSCR _Write:
Read: BIT 7
Core Timer Counter, CTCR
Write:
Read:
Serial Control, SCR
SPIE
Write:
Read: SPIF
Serial Status, SSR
Write:
Read:
Serial Data, SDR
BIT 7
Write:
Read:
IRQ Status & Control, ISCR
IRQE
Write:
Read:
Unimplemented
Write:
Read:
Unimplemented
Write:
6
0
PB6
PC6
DHOLD
0
DDRB6
DDRC6
RTIF
6
SPE
DCOL
6
OM2
5
PA5
PB5
PC5
INV
DDRA5
DDRB5
DDRC5
CTOFE
5
LSBF
0
5
OM1
4
PA4
PB4
PC4
VREF
DDRA4
DDRB4
DDRC4
RTIE
4
MSTR
0
4
0
R
3
PA3
PB3
PC3
MUX4
DDRA3
DDRB3
DDRC3
0
CTOFR
3
0
SPIR
0
3
IRQF
2
PA2
PB2
PC2
MUX3
DDRA2
DDRB2
DDRC2
0
RTIFR
2
CPHA
0
2
0
1
PA1
PB1
PC1
MUX2
DDRA1
DDRB1
DDRC1
RT1
1
SPR1
0
1
0
IRQR
Bit 0
PA0
PB0
PC0
MUX1
DDRA0
DDRB0
DDRC0
RT0
BIT 0
SPR0
0
BIT 0
0
= Unimplemented
R = Reserved
Figure 2-3. I/O Registers $0000–$000F
* Features related to Port C are available only on the 28-pin MC68HC05JP6 devices.
General Release Specification
34
Memory
MC68HC05JJ6/MC68HC05JP6 — Rev. 3.2
Freescale Semiconductor