MC68HC908GP20 Datasheet, PDF (48/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Addr. Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Read:
$000A
Unimplemented Write:
Reset: 0
0
0
0
0
0
0
0
Read:
$000B
Unimplemented Write:
Reset: 0
0
0
0
0
0
0
0
Read: 0
0
0
0
0
0
$000C
Data Direction Register E
(DDRE)
Write:
DDRE1 DDRE0
Reset: 0
0
0
0
0
0
0
0
Read:
$000D
Port
A Input Pullup Enable
Register (PTAPUE)
Write:
PTAPUE7
PTAPUE6
PTAPUE5
PTAPUE4
PTAPUE3
PTAPUE2
PTAPUE1
PTAPUE0
Reset: 0
0
0
0
0
0
0
0
Read: 0
$000E
Port C Input Pullup Enable
Register (PTCPUE)
Write:
PTCPUE6 PTCPUE5 PTCPUE4 PTCPUE3 PTCPUE2 PTCPUE1 PTCPUE0
Reset: 0
0
0
0
0
0
0
0
Read:
$000F
Port D Input Pullup Enable
Register (PTDPUE)
Write:
PTDPUE7
PTDPUE6
PTDPUE5
PTDPUE4
PTDPUE3
PTDPUE2
PTDPUE1
PTDPUE0
Reset: 0
0
0
0
0
0
0
0
$0010
Read:
SPI Control Register
(SPCR)
Write:
Reset:
SPRIE
0
DMAS
SPMSTR CPOL
0
1
0
CPHA SPWOM SPE
1
0
0
SPTIE
0
$0011
Read:
SPI Status and Control
Register (SPSCR)
Write:
Reset:
SPRF
0
ERRIE
0
OVRF
0
MODF
0
SPTE
MODFEN SPR1
1
0
0
SPR0
0
Read: R7
R6
R5
R4
R3
R2
R1
R0
$0012
SPI Data Register
(SPDR)
Write:
T7
T6
T5
T4
T3
T2
T1
T0
Reset:
Unaffected by reset
Read:
$0013
SCI Control Register 1
(SCC1)
Write:
LOOPS
ENSCI
TXINV
M
WAKE ILTY
PEN
PTY
Reset: 0
0
0
0
0
0
0
0
= Unimplemented R = Reserved
U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 2 of 8)
Advance Information
48
MC68HC908GP20 — Rev 2.1
Freescale Semiconductor