Input/Output (I/O) Section
MC68HC908GT16 MC68HC908GT8 MC68HC08GT16 Data Sheet, Rev. 5.0
Freescale Semiconductor
33
$000D
Port A Input Pullup Enable
Register (PTAPUE)
See page 127.
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
PTAPUE7
PTAPUE6
PTAPUE5
PTAPUE4
PTAPUE3
PTAPUE2
PTAPUE1
PTAPUE0
0
0
0
0
0
0
0
0
0
$000E
Port C Input Pullup Enable
Register (PTCPUE)
See page 131.
PTCPUE6
PTCPUE5
PTCPUE4
PTCPUE3
PTCPUE2
PTCPUE1
PTCPUE0
0
0
0
0
0
0
0
0
$000F
Port D Input Pullup Enable
Register (PTDPUE)
See page 134.
PTDPUE7
PTDPUE6
PTDPUE5
PTDPUE4
PTDPUE3
PTDPUE2
PTDPUE1
PTDPUE0
0
0
0
0
0
0
0
0
$0010
SPI Control Register
(SPCR)
See page 213.
SPRIE
R
SPMSTR
CPOL
CPHA
SPWOM
SPE
SPTIE
0
0
1
0
1
0
0
0
$0011
SPI Status and Control
Register (SPSCR)
See page 214.
SPRF
ERRIE
OVRF
MODF
SPTE
MODFEN
SPR1
SPR0
0
0
0
0
1
0
0
0
$0012
SPI Data Register
(SPDR)
See page 216.
R7
T7
R6
T6
R5
T5
R4
T4
R3
T3
R2
T2
R1
T1
R0
T0
Unaffected by reset
$0013
ESCI Control Register 1
(SCC1)
See page 163.
LOOPS
ENSCI
TXINV
M
WAKE
ILTY
PEN
PTY
0
0
0
0
0
0
0
0
$0014
ESCI Control Register 2
(SCC2)
See page 165.
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
0
0
0
0
0
0
0
0
$0015
ESCI Control Register 3
(SCC3)
See page 167.
R8
T8
R
R
ORIE
NEIE
FEIE
PEIE
U
U
TC
0
0
0
0
0
0
$0016
ESCI Status Register 1
(SCS1)
See page 168.
SCTE
SCRF
IDLE
OR
NF
FE
PE
1
1
0
0
0
0
0
0
$0017
ESCI Status Register 2
(SCS2)
See page 170.
BKF
RPF
0
0
0
0
0
0
0
0
$0018
ESCI Data Register
(SCDR)
See page 171.
R7
T7
R6
T6
R5
T5
R4
T4
R3
T3
R2
T2
R1
T1
R0
T0
Unaffected by reset
$0019
ESCI Baud Rate Register
(SCBR)
See page 171.
SCP1
SCP0
R
SCR2
SCR1
SCR0
0
0
0
0
0
0
0
0
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
= Unimplemented
R = Reserved
U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 2 of 7)