MC68HC711E20CFS2 MOTOROLA [Motorola, Inc], MC68HC711E20CFS2 Datasheet - Page 50
MC68HC711E20CFS2
Manufacturer Part Number
MC68HC711E20CFS2
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC711E20CFS2.pdf
(268 pages)
- Current page: 50 of 268
- Download datasheet (4Mb)
Operating Modes and On-Chip Memory
2.3.3.2 RAM and I/O Mapping Register
Data Sheet
50
NOSEC — Security Disable Bit
NOCOP — COP System Disable Bit
ROMON — ROM/EPROM/OTPROM Enable Bit
EEON — EEPROM Enable Bit
The internal registers used to control the operation of the MCU can be relocated
on 4-Kbyte boundaries within the memory space with the use of the RAM and I/O
mapping register (INIT). This 8-bit special-purpose register can change the default
locations of the RAM and control registers within the MCU memory map. It can be
written only once within the first 64 E-clock cycles after a reset in normal modes,
and then it becomes a read-only register.
RAM[3:0] — RAM Map Position Bits
NOSEC is invalid unless the security mask option is specified before the MCU
is manufactured. If the security mask option is omitted NOSEC always reads 1.
The enhanced security feature is available in the MC68S711E9 MCU. The
enhancement to the standard security feature protects the EPROM as well as
RAM and EEPROM.
Refer to
When this bit is 0, the ROM or EPROM is disabled and that memory space
becomes externally addressed. In single-chip mode, ROMON is forced to 1 to
enable ROM/EPROM regardless of the state of the ROMON bit.
When this bit is 0, the EEPROM is disabled and that memory space becomes
externally addressed.
These four bits, which specify the upper hexadecimal digit of the RAM address,
control position of RAM in the memory map. RAM can be positioned at the
beginning of any 4-Kbyte page in the memory map. It is initialized to address
$0000 out of reset. Refer to
Address: $103D
Reset:
Read:
Write:
0 = Security enabled
1 = Security disabled
1 = COP disabled
0 = COP enabled
0 = ROM disabled from the memory map
1 = ROM present in the memory map
0 = EEPROM removed from the memory map
1 = EEPROM present in the memory map
Freescale Semiconductor, Inc.
For More Information On This Product,
Section 5. Resets and
RAM3
Bit 7
Operating Modes and On-Chip Memory
0
Figure 2-12. RAM and I/O Mapping Register (INIT)
Go to: www.freescale.com
RAM2
6
0
RAM1
Table
5
0
Interrupts.
2-4.
RAM0
4
0
REG3
3
0
REG2
M68HC11E Family — Rev. 5
2
0
REG1
1
0
MOTOROLA
REG0
Bit 0
1
Related parts for MC68HC711E20CFS2
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
APPENDIX A ELECTRICAL CHARACTERISTICS
Manufacturer:
FREESCALE [Freescale Semiconductor, Inc]
Datasheet:
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
6367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
MC1494LMotorola, Inc [MONOLITHIC FOUR-QUADRANT MULTIPLIER]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC1466LMotorola, Inc [PRECISION WIDE RANGE VOLTAGE AND CURRENT REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC145532DWMotorola, Inc [ADPCM Transcoder]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
Silicon Controlled Rectifiers
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF Power Field Effect Transistors N-Channel Enhancement-Mode Lateral MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTORS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
LATERAL N-CHANNEL BROADBAND RF POWER MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF LOW POWER TRANSISTOR NPN SILICON
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
PLASTIC SURFACE MOUNT ZENER DIODES 1.5 WATTS 3.3-68 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
OVERVOLTAGE TRANSIENT SUPPRESSOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
TMOS POWER FET 15 AMPERES 60 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet: