mc68hc908kx8 Freescale Semiconductor, Inc, mc68hc908kx8 Datasheet - Page 25
mc68hc908kx8
Manufacturer Part Number
mc68hc908kx8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908KX8.pdf
(210 pages)
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Addr.
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Port A Input Pullup Enable
Data Direction Register A
Data Direction Register B
Register Name
SCI Control Register 1
SCI Control Register 2
SCI Control Register 3
SCI Status Register 1
Port A Data Register
Port B Data Register
Register (PTAPUE)
Unimplemented
Unimplemented
Unimplemented
Unimplemented
See page 106.
See page 108.
See page 106.
See page 109.
See page 108.
See page 125.
See page 127.
See page 129.
See page 130.
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 5)
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
(DDRA)
(DDRB)
(SCC1)
(SCC2)
(SCC3)
(SCS1)
(PTA)
(PTB)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
DDRB7
LOOPS
SCTIE
SCTE
PTB7
Bit 7
R8
U
0
0
0
0
0
0
0
0
1
= Unimplemented
DDRB6
ENSCI
PTB6
TCIE
TC
T8
U
6
0
0
0
0
0
0
0
0
1
DDRB5
SCRIE
TXINV
SCRF
PTB5
R
5
0
0
0
0
0
0
0
0
0
0
PTAPUE4
DDRA4
DDRB4
Unaffected by reset
Unaffected by reset
PTA4
PTB4
IDLE
ILIE
M
R
R
4
0
0
0
0
0
0
0
= Reserved
PTAPUE3
DDRA3
DDRB3
WAKE
PTA3
PTB3
ORIE
OR
TE
3
0
0
0
0
0
0
0
PTAPUE2
DDRA2
DDRB2
PTA2
PTB2
NEIE
ILTY
RE
NF
2
0
0
0
0
0
0
0
U = Unaffected
PTAPUE1
DDRA1
DDRB1
PTA1
PTB1
RWU
FEIE
PEN
FE
1
0
0
0
0
0
0
0
Monitor ROM
PTAPUE0
DDRA0
DDRB0
PTA0
PTB0
PEIE
Bit 0
PTY
SBK
PE
0
0
0
0
0
0
0
25
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