Memory Map
I/O Section
MC68HC08AZ32A — Rev 1.0
Technical Data
MOTOROLA
Memory Map
45
2.3 I/O Section
Addresses $0000–$004F, shown in
Figure 2-2
, contain the I/O Data,
Status and Control Registers
Addr.
Name
Bit 7
6
5
4
3
2
1
Bit 0
$0000
Port A Data Register (PTA)
R:
W:
R:
W:
R:
W:
R:
W:
R:
W:
R:
W:
R:MCLKEN
W:
R:
DDRD7
W:
R:
PTE7
W:
R:
W:
R:
W:
R:
W:
R:
DDRE7
W:
R:
W:
R:
W:
R:
W:
R:
SPRIE
W:
R:
SPRF
W:
R:
W:
R:
LOOPS
W:
PTA7
PTA6
PTA5
PTA4
PTA3
PTA2
PTA1
PTA0
$0001
Port B Data Register (PTB)
PTB7
PTB6
PTB25
PTB4
PTB3
PTB2
PTB1
PTB0
$0002
Port C Data Register (PTC)
0
R
0
R
PTC5
PTC4
PTC3
PTC2
PTC1
PTC0
$0003
Port D Data Register (PTD)
PTD7
PTD6
PTD5
PTD4
PTD3
PTD2
PTD1
PTD0
$0004
Data Direction Register A
(DDRA)
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
$0005
Data Direction RegisterB
(DDRB)
DDRB7
DDRB6
DDRB5
DDRB4
DDRB3
DDRB2
DDRB1
DDRB0
$0006
Data Direction Register C
(DDRC)
0
R
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
$0007
Data Direction Register D
(DDRD)
DDRD6
DDRD5
DDRD4
DDRD3
DDRD2
DDRD1
DDRD0
$0008
Port E Data Register (PTE)
PTE6
PTE5
PTE4
PTE3
PTE2
PTE1
PTE0
$0009
Port F Data Register (PTF)
0
R
0
R
0
R
PTF6
PTF5
PTF4
PTF3
PTF2
PTF1
PTF0
$000A
Port G Data Register (PTG)
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
PTG2
PTG1
PTG0
$000B
Port H Data Register (PTH)
0
R
PTH1
PTH0
$000C
Data Direction Register E
(DDRE)
DDRE6
DDRE5
DDRE4
DDRE3
DDRE2
DDRE1
DDRE0
$000D
Data Direction Register F
(DDRF)
0
R
0
R
0
R
DDRF6
DDRF5
DDRF4
DDRF3
DDRF2
DDRF1
DDRF0
$000E
Data Direction Register G
(DDRG)
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
DDRG2
DDRG1
DDRG0
$000F
Data Direction Register
(DDRH)
0
R
DDRH1
DDRH0
$0010
SPI Control Register (SPCR)
R
SP-
MSTR
OVRF
CPOL
CPHA
SPWOM
SPE
SPTIE
$0011
SPI Status and Control
Register (SPSCR)
ERRIE
MODF
SPTE
MODFEN
SPR1
SPR0
$0012
SPI Data Register (SPDR)
R7
T7
R6
T6
R5
T5
R4
T4
R3
T3
R2
T2
R1
T1
R0
T0
$0013
SCI Control Register 1
(SCC1)
ENSCI
TXINV
M
WAKE
ILTY
PEN
PTY
= Unimplemented
R
= Reserved
Figure 2-2. I/O Data, Status and Control Registers (Sheet 1 of 4)
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.