MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 74

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Electrically Erasable Programmable ROM
6.4.6 EEPROM Control Register
Advance Information
74
NOTE:
NOTE:
Address:
This read/write register controls programming/erasing of the array.
EEBCLK — EEPROM Bus Clock Enable Bit
Use the internal RC oscillator for applications in the 3 to 5 V range.
EEOFF — EEPROM Power Down Bit
The EEPROM requires a recovery time, t
the EEOFF bit. Refer to
Reset:
Electrically Erasable Programmable ROM (EEPROM)
Read:
Write:
This read/write bit determines which clock will be used to drive the
internal charge pump for programming/erasing. Reset clears this bit.
This read/write bit disables the EEPROM module for lower power
consumption. Any attempts to access the array will give unpredictable
results. Reset clears this bit.
1 = Bus clock drives charge pump.
0 = Internal RC oscillator drives charge pump.
1 = Disable EEPROM array
0 = Enable EEPROM array
EEBCLK
$FE1D
Bit 7
R
0
Figure 6-1. EEPROM Control Register (EECR)
= Reserved
R
6
0
0
EEOFF
21.6 Control Timing
5
0
EERAS1
4
0
EERAS0
EEOFF
3
0
MC68HC708AS48
, to stabilize after clearing
for timing values.
EELAT
2
0
R
1
0
0
MOTOROLA
—
Rev. 4.0
EEPGM
Bit 0
0