Datasheet

Memory
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
30 Freescale Semiconductor
$000C
Data Direction Register E
(DDRE)
See page 168.
Read: 0 0
DDRE5 DDRE4 DDRE3 DDRE2 DDRE1 DDRE0
Write:
Reset:00000000
$000D
Port A Input Pullup Enable
Register (PTAPUE)
See page 159.
Read:
PTAPUE7 PTAPUE6 PTAPUE5 PTAPUE4 PTAPUE3 PTAPUE2 PTAPUE1 PTAPUE0
Write:
Reset:00000000
$000E
Port C Input Pullup Enable
Register (PTCPUE)
See page 164.
Read: 0
PTCPUE6 PTCPUE5 PTCPUE4 PTCPUE3 PTCPUE2 PTCPUE1 PTCPUE0
Write:
Reset:00000000
$000F
Port D Input Pullup Enable
Register (PTDPUE)
See page 166.
Read:
PTDPUE7 PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0
Write:
Reset:00000000
$0010
SPI Control Register (SPCR)
See page 247.
Read:
SPRIE R SPMSTR CPOL CPHA SPWOM SPE SPTIE
Write:
Reset:00101000
$0011
SPI Status and Control
Register (SPSCR)
See page 249.
Read: SPRF
ERRIE
OVRF MODF SPTE
MODFEN SPR1 SPR0
Write:
Reset:00001000
$0012
SPI Data Register
(SPDR)
See page 250.
Read: R7 R6 R5 R4 R3 R2 R1 R0
Write: T7 T6 T5 T4 T3 T2 T1 T0
Reset: Unaffected by reset
$0013
ESCI Control Register 1
(SCC1)
See page 196.
Read:
LOOPS ENSCI TXINV M WAKE ILTY PEN PTY
Write:
Reset:00000000
$0014
ESCI Control Register 2
(SCC2)
See page 198.
Read:
SCTIE TCIE SCRIE ILIE TE RE RWU SBK
Write:
Reset:00000000
$0015
ESCI Control Register 3
(SCC3)
See page 200.
Read: R8
T8 R R ORIE NEIE FEIE PEIE
Write:
Reset:U0000000
$0016
ESCI Status Register 1
(SCS1)
See page 201.
Read: SCTE TC SCRF IDLE OR NF FE PE
Write:
Reset:11000000
$0017
ESCI Status Register 2
(SCS2)
See page 203.
Read:
BKF RPF
Write:
Reset:00000000
Addr.Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 2 of 8)