mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 25

• Manufacturer Part Number: mc68hc908qb4
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
$000C
$000D
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$000A
$000B
$000E
$000F
$0010
$0011
$0012
$0013
Addr.
↓
↓
Port A Input Pullup Enable
Port B Input Pullup Enable
Data Direction Register A
Data Direction Register B
ESCI Control Register 1
ESCI Control Register 2
ESCI Control Register 3
ESCI Status Register 1
SPI Status and Control
Register Name
Port A Data Register
Port B Data Register
SPI Control Register
Register (PTAPUE)
Register (PTBPUE)
Register (SPSCR)
SPI Data Register
See page 104.
See page 106.
See page 104.
See page 107.
See page 105.
See page 108.
See page 171.
See page 172.
See page 174.
See page 122.
See page 124.
See page 125.
See page 126.
Reserved
Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 5)
(DDRA)
(DDRB)
(SPCR)
(SPDR)
(SCC1)
(SCC2)
(SCC3)
(SCS1)
(PTA)
(PTB)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
PTBPUE7
OSC2EN
DDRB7
LOOPS
SPRIE
SCTIE
SPRF
SCTE
PTB7
Bit 7
R7
T7
R8
R
R
U
0
0
0
0
0
0
0
0
1
MC68HC908QB8 Data Sheet, Rev. 2
= Unimplemented
PTBPUE6
DDRB6
ERRIE
ENSCI
AWUL
PTB6
TCIE
TC
R6
T6
T8
R
R
6
0
0
0
0
0
0
0
0
0
0
1
PTAPUE5
PTBPUE5
SPMSTR
DDRA5
DDRB5
SCRIE
TXINV
OVRF
SCRF
PTA5
PTB5
R5
T5
R
5
0
0
0
0
1
0
0
0
0
0
PTAPUE4
PTBPUE4
DDRA4
DDRB4
MODF
Unaffected by reset
Unaffected by reset
CPOL
Unaffected by reset
PTA4
PTB4
IDLE
ILIE
R4
T4
M
R
R
4
0
0
0
0
0
0
0
0
0
0
= Reserved
PTAPUE3
PTBPUE3
DDRA3
DDRB3
WAKE
CPHA
SPTE
PTA3
PTB3
ORIE
OR
R3
T3
TE
3
0
0
0
0
1
1
0
0
0
0
PTAPUE2
PTBPUE2
MODFEN
SPWOM
DDRB2
PTA2
PTB2
NEIE
U = Unaffected
ILTY
RE
R2
NF
T2
2
0
0
0
0
0
0
0
0
0
0
0
Direct Page Registers
PTAPUE1
PTBPUE1
DDRA1
DDRB1
SPR1
PTA1
PTB1
RWU
FEIE
PEN
SPE
R1
FE
T1
1
0
0
0
0
0
0
0
0
0
0
PTAPUE0
PTBPUE0
DDRA0
DDRB0
SPTIE
SPR0
PTA0
PTB0
PEIE
Bit 0
PTY
SBK
R0
PE
T0
0
0
0
0
0
0
0
0
0
0
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