MC68HC908GT16_07 Datasheet, PDF (152/292 Pages) Freescale Semiconductor, Inc – Microcontrollers

Enhanced Serial Communications Interface (ESCI) Module
14.4.1 Data Format
The SCI uses the standard non-return-to-zero mark/space data format illustrated in Figure 14-3.
Addr.
$0009
$000A
$000B
$0013
$0014
$0015
$0016
$0017
$0018
$0019
PARITY
START
8-BIT DATA FORMAT
(BIT M IN SCC1 CLEAR)
OR DATA
BIT
NEXT
START
BIT _{BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 STOP BIT}
BIT
PARITY
START
9-BIT DATA FORMAT
(BIT M IN SCC1 SET)
OR DATA
BIT
NEXT
START
BIT BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 _STOP BIT
BIT
Figure 14-3. SCI Data Formats
Register Name
ESCI Prescaler Register ^Read:
(SCPSC) Write:
See page 172. _Reset:
ESCI Arbiter Control ^Read:
Register (SCIACTL) Write:
See page 176. _Reset:
ESCI Arbiter Data ^Read:
Register (SCIADAT) Write:
See page 177. _Reset:
ESCI Control Register 1 ^Read:
(SCC1) Write:
See page 163. _Reset:
ESCI Control Register 2 ^Read:
(SCC2) Write:
See page 165. _Reset:
ESCI Control Register 3 ^Read:
(SCC3) Write:
See page 167. _Reset:
ESCI Status Register 1 ^Read:
(SCS1) Write:
See page 168. _Reset:
ESCI Status Register 2 ^Read:
(SCS2) Write:
See page 170. _Reset:
ESCI Data Register ^Read:
(SCDR) Write:
See page 171. _Reset:
ESCI Baud Rate Register ^Read:
(SCBR) Write:
See page 171. _Reset:
Bit 7
PDS2
0
AM1
0
ARD7
0
LOOPS
0
SCTIE
0
R8
U
SCTE
1
0
0
R7
T7
R
0
6
PDS1
0
ALOST
0
ARD6
5
PDS0
0
AM0
0
ARD5
0
ENSCI
0
TCIE
0
T8
0
TC
0
TXINV
0
SCRIE
0
R
0
SCRF
1
0
0
0
0
0
R6
R5
T6
T5
LINR
SCP1
0
0
= Unimplemented
4
PSSB4
0
ACLK
0
ARD4
3
PSSB3
0
AFIN
0
ARD3
2
PSSB2
0
ARUN
1
PSSB1
0
AROVFL
0
ARD2
0
ARD1
0
0
0
0
M
WAKE
ILTY
PEN
0
0
0
0
ILIE
TE
RE
RWU
0
0
0
0
R
ORIE
NEIE
FEIE
0
0
0
0
IDLE
OR
NF
FE
0
0
0
0
0
0
0
BKF
0
0
0
0
R4
R3
R2
R1
T4
T3
T2
T1
Unaffected by reset
SCP0
R
SCR2
SCR1
0
0
0
0
R = Reserved U = Unaffected
Figure 14-4. ESCI I/O Register Summary
Bit 0
PSSB0
0
ARD8
0
ARD0
0
PTY
0
SBK
0
PEIE
0
PE
0
RPF
0
R0
T0
SCR0
0
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
152
Freescale Semiconductor