MC68HC08AZ32A Datasheet, PDF (45/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

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