MC68HC711D3_05 Datasheet, PDF (29/138 Pages) Freescale Semiconductor, Inc – Microcontrollers

Memory Map
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Arm/Reset COP Timer Circuitry ^Read: _{Bit 7}
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
$003A
Register (COPRST) Write:
See page 48. _{Reset: 0}
0
0
0
0
0
0
0
PROM Programming Control ^Read: _MBE
0
ELAT EXCOL EXROW
0
$003B
Register (PPROG) Write:
See page 32. _{Reset: 0}
0
0
0
0
0
0
PGM
0
0
$003C
Highest Priority I-Bit Interrupt and ^Read:
Miscellaneous Register (HPRIO) Write:
See page 58. _Reset:
RBOOT
SMOD
MDA
Note 1
IRVNE
PSEL3
0
PSEL2
1
PSEL1
0
PSEL0
1
1. The values of the RBOOT, SMOD, IRVNE, and MDA bits at reset depend on the mode during initialization. Refer to
Table 4-3. Hardware Mode Select Summary.
$003D
RAM and I/O Mapping Register ^Read:
(INIT) Write:
See page 29. _Reset:
RAM3
0
RAM2
0
RAM1
0
RAM0
0
REG3
0
REG2
0
REG1
0
REG0
1
$003E
Read:
Test 1 Register
(TEST)
Write:
TILOP
0
OCC4 CBYP DISR
FCM
FCOP
0
Reset: 0
0
0
0
0
0
0
0
System Configuration Register ^Read:
0
0
0
0
0
NOCOP ROMON
0
$003F
(CONFIG) Write:
See page 30. _{Reset: 0}
0
0
0
0
U
U
0
= Unimplemented
R = Reserved
U = Unaffected
Figure 2-2. Register and Control Bit Assignments (Sheet 5 of 5)
2.3.2 RAM and I/O Mapping Register
The random-access memory (RAM) and input/output (I/O) mapping register (INIT) is a special-purpose
8-bit register that is used during initialization to change the default locations of RAM and control registers
within the MCU memory map. It can be written to only once within the first 64 E-clock cycles after a reset
in normal modes. Thereafter, it becomes a read-only register.
Address:
Read:
Write:
Reset:
$003D
Bit 7
6
5
4
3
2
1
RAM3 RAM2 RAM1 RAM0 REG3 REG2 REG1
0
0
0
0
0
0
0
Figure 2-3. RAM and I/O Mapping Register (INIT)
Bit 0
REG0
0
MC68HC711D3 Data Sheet, Rev. 2.1
Freescale Semiconductor
29