mc68hc705k1 Freescale Semiconductor, Inc, mc68hc705k1 Datasheet - Page 93

• Manufacturer Part Number: mc68hc705k1
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

10.3 PEPROM Registers
10.3.1 PEPROM Bit Select Register
MC68HC705K1 — Rev. 2.0
Address:
Two input/output (I/O) registers control programming and reading of the
PEPROM:
The PEPROM bit select register (PEBSR) selects one of 64 bits in the
PEPROM array. Reset clears all the bits in the PEPROM bit select
register.
PEB7 and PEB6 — Not Connected to the PEPROM Array
PEB5–PEB0 — PEPROM Bit Select Bits
Reset:
Read:
Write:
•
•
These read/write bits are available as storage locations. Reset clears
PEB7 and PEB6.
These read/write bits select one of 64 bits in the PEPROM as shown
in
PEB5–PEB3 select the PEPROM column. Reset clears PEB5–PEB0,
selecting the PEPROM bit in row zero, column zero.
Freescale Semiconductor, Inc.
For More Information On This Product,
Table
PEPROM bit select register (PEBSR)
PEPROM status and control register (PESCR)
Figure 10-2. PEPROM Bit Select Register (PEBSR)
$000E
PEB7
Bit 7
0
Personality EPROM (PEPROM)
10-1. Bits PEB2–PEB0 select the PEPROM row, and bits
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PEB6
6
0
PEB5
5
0
PEB4
4
0
PEB3
3
0
Personality EPROM (PEPROM)
PEB2
2
0
PEPROM Registers
PEB1
1
0
Technical Data
PEB0
Bit 0
0