參數(shù)資料
型號: MC68B912B32
廠商: Motorola, Inc.
英文描述: 2.5V 100ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference 3-SOT-23 -40 to 125
中文描述: 16位微控制器
文件頁數(shù): 48/128頁
文件大小: 748K
代理商: MC68B912B32
MOTOROLA
48
MC68HC912B32
MC68HC912B32TS/D
Figure 9 EEPROM Block Protect Mapping
8.2 EEPROM Control Registers
EESWAI — EEPROM Stops in Wait Mode
0 = Module is not affected during wait mode
1 = Module ceases to be clocked during wait mode
This bit should be cleared if the wait mode vectors are mapped in the EEPROM array.
PROTLCK — Block Protect Write Lock
0 = Block protect bits and bulk erase protection bit can be written
1 = Block protect bits are locked
Read anytime. Write once in normal modes (SMODN = 1), set and clear any time in special modes
(SMODN = 0).
EERC — EEPROM Charge Pump Clock
0 = System clock is used as clock source for the internal charge pump. Internal RC oscillator is
stopped.
1 = Internal RC oscillator drives the charge pump. The RC oscillator is required when the system
bus clock is lower than f
PROG
.
Read and write anytime.
Prevents accidental writes to EEPROM. Read anytime. Write anytime if EEPGM = 0 and PROTLCK = 0.
EEMCR
— EEPROM Module Configuration
$00F0
Bit 7
6
5
4
3
2
1
Bit 0
1
1
1
1
1
EESWAI PROTLCK
EERC
RESET:
1
1
1
1
1
1
0
0
EEPROT
— EEPROM Block Protect
$00F1
Bit 7
6
5
4
3
2
1
Bit 0
1
1
1
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
RESET:
1
1
1
1
1
1
1
1
RESERVED (64 BYTES)
VECTORS (64 BYTES)
SINGLE CHIP VECTORS
HC912B32 EEPROM BLOCK PROT
$FF80
$FFBF
$FFC0
$FFFF
BPROT0
BPROT1
BPROT2
(128 BYTES)
BPROT3
(256 BYTES)
BPROT4
(256 BYTES)
$_F00
$_E00
$_D00
$_F80
$_FC0
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