MC68HC812A4 Datasheet, PDF (45/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Register Block
Register Map
Addr.
$000A
$000B
$000C
$000D
$000E
Register Name
Bit 7
Port E Assignment ^Read:
Register (PEAR) Write:
See page 104. _Reset:
ARSIE
0
Mode Register
Read:
SMODN
(MODE) Write:
See page 85. _{Reset: 0}
Pullup Control ^Read:
Register (PUCR) Write:
See page 107. _Reset:
PUPH
1
Reduced Drive ^Read:
Register (RDRIV) Write:
See page 108. _Reset:
RDPJ
0
Reserved
R
6
PLLTE
0
MODB
0
PUPG
1
RDPH
0
R
5
PIPOE
1
MODA
0
PUPF
1
RDPG
0
R
4
NECLK
0
ESTR
1
PUPE
1
RDPF
0
R
3
LSTRE
1
IVIS
1
PUPD
1
RDPE
0
R
2
RDWE
1
0
0
PUC
1
PRPD
0
R
1
0
0
EMD
1
PUPB
1
RDPC
0
R
Bit 0
0
0
EME
1
PUPA
1
RDPAB
0
R
$000F
Reserved
R
R
R
R
R
R
R
R
$0010
RAM Initialization
Register (INITRM)
See page 88.
$0011
Register Initialization
Register (INITRG)
See page 87.
EEPROM Initialization
$0012
Register (INITEE)
See page 89.
Miscellaneous Mapping
$0013 Control Register (MISC)
See page 89.
Real-Tme Interrupt
$0014 Control Reg. (RTICTL)
See page 161.
Real-Time Interrupt
$0015
Flag Register (RTIFLG)
See page 163.
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
RAM15
0
REG15
0
EE15
0
EWDIR
0
RTIE
0
RTIF
0
RAM14
0
REG14
0
EE14
0
NDRC
0
RSWAI
0
0
0
RAM13
0
REG13
0
EE13
0
0
0
RSBCK
0
0
0
= Unimplemented
RAM12 RAM11
0
1
REG12 REG11
0
0
EE12
0
1
0
0
0
0
0
0
RTBYP
0
0
0
0
0
0
0
0
0
0
0
0
RTR2
0
0
0
0
0
0
0
0
0
0
RTR1
0
0
0
0
0
0
EEON
1
0
0
RTR0
0
0
0
0
0
0
0
R = Reserved
U = Unaffected
Figure 2-1. Register Map (Sheet 2 of 15)
Advance Information
MOTOROLA
Register Block
MC68HC812A4 — Rev. 3.0
45