MC68HC812A4 Datasheet, PDF (227/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Serial Communications Interface Module (SCI)
Register Map
14.5 Register Map
NOTE:
The register block can be mapped to any 2-Kbyte boundary within the
standard 64-Kbyte address space. The register block occupies the first
512 bytes of the 2-Kbyte block. This register map shows default
addressing after reset.
Addr.
Register Name
Bit 7
6
5
$00C0
SCI 0 Baud Rate
Register High
(SC0BDH)
See page 249.
Read:
Write:
Reset:
BTST
0
BSPL
0
BRLD
0
SCI 0 Baud Rate
$00C1 Register Low (SC0BDL)
See page 249.
Read:
Write:
Reset:
SBR7
0
SBR6
0
SBR5
0
$00C2
SCI 0 Control
Register 1 (SC0CR1)
See page 250.
Read:
Write:
Reset:
LOOPS
0
WOMS
0
RSRC
0
Read:
SCI 0 Control
TIE
TCIE
RIE
$00C3 Register 2 (SC0CR2) Write:
See page 252.
Reset: 0
0
0
Read: TDRE
TC
RDRF
SCI 0 Status
$00C4 Register 1 (SC0SR1) Write:
See page 254.
Reset: 1
1
0
Read: 0
0
0
SCI 0 Status
$00C5 Register 2 (SC0SR2) Write:
See page 256.
Reset: 0
0
0
Read: R8
0
SCI 0 Data Register
T8
$00C6
High (SC0DRH) Write:
See page 257.
Reset:
= Unimplemented
4
3
2
SBR12 SBR11 SBR10
0
0
0
SBR4 SBR3 SBR2
0
0
1
M
WAKE
ILT
0
0
0
ILIE
TE
RE
0
0
0
IDLE
OR
NF
0
0
0
0
0
0
0
0
0
0
0
0
Unaffected by reset
1
SBR9
0
SBR1
0
PE
0
RWU
0
FE
0
0
0
0
Figure 14-2. SCI Register Map (Sheet 1 of 2)
Bit 0
SBR8
0
SBR0
0
PT
0
SBK
0
PF
0
RAF
0
0
Advance Information
MOTOROLA
Serial Communications Interface Module (SCI)
MC68HC812A4 — Rev. 3.0
227