MC68HC811E2FN Freescale Semiconductor, MC68HC811E2FN Datasheet - Page 52
MC68HC811E2FN
Manufacturer Part Number
MC68HC811E2FN
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC811E2FN.pdf
(242 pages)
Specifications of MC68HC811E2FN
Cpu Family
HC11
Device Core Size
8b
Frequency (max)
4MHz
Interface Type
SCI/SPI
Program Memory Type
ROMLess
Program Memory Size
Not Required
Total Internal Ram Size
256Byte
# I/os (max)
38
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
On-chip Adc
8-chx8-bit
Instruction Set Architecture
CISC
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
52
Package Type
PLCC
Lead Free Status / Rohs Status
Supplier Unconfirmed
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Operating Modes and On-Chip Memory
Bits [7:5] — Unimplemented
PTCON — Protect CONFIG Register Bit
BPRT[3:0] — Block Protect Bits for EEPROM
52
Always read 0
When set, these bits protect a block of EEPROM from being programmed or electronically erased.
Ultraviolet light, however, can erase the entire EEPROM contents regardless of BPRT[3:0] (windowed
packages only). Refer to
When cleared, BPRT[3:0] allow programming and erasure of the associated block.
0 = CONFIG register can be programmed or erased normally.
1 = CONFIG register cannot be programmed or erased.
Address: $1035
Reset:
Read:
Write:
1. x is determined by the value of EE[3:0] in CONFIG register. Refer to
Table 2-7. EEPROM Block Protect in MC68HC811E2 MCUs
2-13.
Bit Name
Bit Name
Bit 7
BPRT0
BPRT1
BPRT2
BPRT3
BPRT0
BPRT1
BPRT2
BPRT3
0
Figure 2-16. Block Protect Register (BPROT)
Table 2-6
= Unimplemented
Table 2-6. EEPROM Block Protect
6
0
M68HC11E Family Data Sheet, Rev. 5.1
and
Table
5
0
Block Protected
Block Protected
$xA00–$xBFF
$xC00–$xDFF
$xE00–$xFFF
$x800–$x9FF
$B660–$B6DF
$B6E0–$B7FF
$B600–$B61F
$B620–$B65F
2-7.
PTCON
4
1
(1)
(1)
(1)
(1)
BPRT3
3
1
BPRT2
2
1
Block Size
Block Size
128 bytes
288 bytes
512 bytes
512 bytes
512 bytes
512 bytes
32 bytes
64 bytes
BPRT1
Figure
1
1
Freescale Semiconductor
BPRT0
Bit 0
1
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