
Functional Description
MC68HC08GR32A MC68HC08GR16A Data Sheet, Rev. 0
Freescale Semiconductor
137
Addr.
Register Name
Bit 7
654321
Bit 0
$0009
ESCI Prescaler Register
(SCPSC)
Read:
PDS2
PDS1
PDS0
PSSB4
PSSB3
PSSB2
PSSB1
PSSB0
Write:
Reset:
00000000
$000A
ESCI Arbiter Control
Register (SCIACTL)
Read:
AM1
ALOST
AM0
ACLK
AFIN
ARUN
AROVFL
ARD8
Write:
Reset:
00000000
$000B
ESCI Arbiter Data
Register (SCIADAT)
Read:
ARD7
ARD6
ARD5
ARD4
ARD3
ARD2
ARD1
ARD0
Write:
Reset:
00000000
$0013
ESCI Control Register 1
(SCC1)
Read:
LOOPS
ENSCI
TXINV
M
WAKE
ILTY
PEN
PTY
Write:
Reset:
00000000
$0014
ESCI Control Register 2
(SCC2)
Read:
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
Write:
Reset:
00000000
$0015
ESCI Control Register 3
(SCC3)
Read:
R8
T8
R
ORIE
NEIE
FEIE
PEIE
Write:
Reset:
U
0000000
$0016
ESCI Status Register 1
(SCS1)
Read:
SCTE
TC
SCRF
IDLE
OR
NF
FE
PE
Write:
Reset:
11000000
$0017
ESCI Status Register 2
(SCS2)
Read:
000000
BKF
RPF
Write:
Reset:
00000000
$0018
ESCI Data Register
(SCDR)
Read:
R7
R6
R5
R4
R3
R2
R1
R0
Write:
T7
T6
T5
T4
T3
T2
T1
T0
Reset:
Unaffected by reset
$0019
ESCI Baud Rate Register
(SCBR)
Read:
LINT
LINR
SCP1
SCP0
R
SCR2
SCR1
SCR0
Write:
Reset:
00000000
= Unimplemented
R
= Reserved
Figure 13-4. ESCI I/O Register Summary