MC68HC11E Motorola, MC68HC11E Datasheet - Page 58

• Manufacturer Part Number: MC68HC11E
• Description: Microcontrollers
• Manufacturer: Motorola

Operating Modes and On-Chip Memory
2.5.1.2 EPROM and EEPROM Programming Control Register
Data Sheet
58
Bits [7:5] — Unimplemented
PTCON — Protect CONFIG Register Bit
BPRT[3:0] — Block Protect Bits for EEPROM
The EPROM and EEPROM programming control register (PPROG) selects and
controls the EEPROM programming function. Bits in PPROG enable the
programming voltage, control the latching of data to be programmed, and select
the method of erasure (for example, byte, row, etc.).
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.
Address: $1035
Reset:
Table 2-6
Read:
Write:
0 = CONFIG register can be programmed or erased normally.
1 = CONFIG register cannot be programmed or erased.
Freescale Semiconductor, Inc.
1. x is determined by the value of EE[3:0] in CONFIG register. Refer to
For More Information On This Product,
Table 2-7. EEPROM Block Protect in MC68HC811E2 MCUs
Bit Name
Bit Name
Bit 7
Operating Modes and On-Chip Memory
BPRT0
BPRT1
BPRT2
BPRT3
BPRT0
BPRT1
BPRT2
BPRT3
0
and
Figure 2-16. Block Protect Register (BPROT)
Go to: www.freescale.com
= Unimplemented
Table
Table 2-6. EEPROM Block Protect
6
0
2-7.
5
0
Block Protected
Block Protected
$xA00–$xBFF
$xC00–$xDFF
$xE00–$xFFF
$x800–$x9FF
$B660–$B6DF
$B6E0–$B7FF
$B600–$B61F
$B620–$B65F
PTCON
4
1
(1)
(1)
(1)
(1)
BPRT3
3
1
BPRT2
M68HC11E Family — Rev. 5
2
1
Block Size
Block Size
128 bytes
288 bytes
512 bytes
512 bytes
512 bytes
512 bytes
32 bytes
64 bytes
Figure
BPRT1
1
1
2-13.
MOTOROLA
BPRT0
Bit 0
1