MC908AZ32ACFU Freescale Semiconductor, MC908AZ32ACFU Datasheet - Page 57

• Manufacturer Part Number: MC908AZ32ACFU
• Description: IC MCU 32K FLASH 8.4MHZ 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908AZ32ACFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 40
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 15x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.5 EEPROM Register Descriptions
Four I/O registers and three nonvolatile registers control program, erase and options of the EEPROM
array.
5.5.1 EEPROM Control Register
This read/write register controls programming/erasing of the array.
Bit 7— Unused bit
EEOFF — EEPROM power down
EERAS1 and EERAS0 — Erase/Program Mode Select Bits
EELAT — EEPROM Latch Control
Freescale Semiconductor
This read/write bit is software programmable but has no functionality.
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.
These read/write bits set the erase modes. Reset clears these bits.
This read/write bit latches the address and data buses for programming the EEPROM array. EELAT
cannot be cleared if EEPGM is still set. Reset clears this bit.
1 = Disable EEPROM array
0 = Enable EEPROM array
1 = Buses configured for EEPROM programming or erase operation
0 = Buses configured for normal operation
Address:
Reset:
Read:
Write:
X = don’t care
UNUSED
$FE1D
EEBPx
Bit 7
0
0
0
0
0
1
Table 5-3. EEPROM Program/Erase Mode Select
Figure 5-2. EEPROM Control Register (EECR)
= Unimplemented
6
0
0
MC68HC908AZ32A Data Sheet, Rev. 2
EERAS1
EEOFF
X
0
0
1
1
5
0
EERAS1
4
0
EERAS0
X
0
1
0
1
EERAS0
3
0
EELAT
No Erase/Program
2
0
Byte Program
Block Erase
Byte Erase
Bulk Erase
MODE
EEPROM Register Descriptions
AUTO
1
0
EEPGM
Bit 0
0
57