mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 128

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

EEMCR — EEPROM Module Configuration
EEPROM Memory
8.5 EEPROM Control Registers
Technical Data
128
1. Bits 4 and 5 have test functions and should not be programmed.
2. Loaded from SHADOW byte.
RESET:
NOBDML
Bit 7
—
NOTE:
NOTE:
NOTE:
(2)
NOSHB
—
6
(2)
Bits[7:4] are loaded at reset from the EEPROM SHADOW byte.
Bits 5 and 4 are reserved for test purposes. These locations in the
SHADOW byte should not be programmed otherwise some locations in
the regular EEPROM array will no longer be visible.
NOBDML — Background Debug Mode Lockout Disable
NOSHB — SHADOW Byte Disable
Bit 6 of the SHADOW byte should not be cleared (set to ‘0’) in order to
have the full EEPROM array visible.
EESWAI — EEPROM Stops in Wait Mode
The EESWAI bit should be cleared if the WAIT mode vectors are
mapped in the EEPROM array.
Freescale Semiconductor, Inc.
Loaded from SHADOW byte at reset.
Read anytime. Write anytime in special modes (SMODN=0).
Loaded from SHADOW byte at reset.
Read anytime. Write anytime in special modes (SMODN=0).
When NOSHB cleared, the regular EEPROM array byte at address
$0FC0 is no longer visible. The SHADOW byte is accessed instead
for both read and program/erase operations. BULK, ODD and EVEN
program/erase only apply if the SHADOW byte is enabled.
Read and write anytime.
For More Information On This Product,
0 = The BDM lockout is enabled.
1 = The BDM lockout is disabled.
0 = SHADOW byte enabled and accessible at address $0FC0.
1 = Regular EEPROM array at address $0FC0.
0 = The module is not affected during WAIT mode
1 = The module ceases to be clocked during WAIT mode
—
1
5
(1)
(2)
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EEPROM Memory
—
1
4
(1)
(2)
3
1
1
EESWAI
2
1
PROTLCK
MC68HC912DG128 — Rev 3.0
1
0
EERC
Bit 0
0
MOTOROLA
$00F0