XC68HC705JJ7 Motorola, XC68HC705JJ7 Datasheet - Page 177

• Manufacturer Part Number: XC68HC705JJ7
• Description: MICROCONTROLLER
• Manufacturer: Motorola

12.3 PEPROM Registers
12.3.1 PEPROM Bit Select Register
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
Address:
Two 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 Selects
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.
Table
The PEPROM bit select register (PEBSR)
The PEPROM status and control register (PESCR)
Figure 12-2. PEPROM Bit Select Register (PEBSR)
$000E
PEB7
Bit 7
0
Personality EPROM (PEPROM)
12-1. Bits PEB2–0 select the PEPROM row, and bits
PEB6
6
0
PEB5
5
0
PEB4
4
0
PEB3
3
0
Personality EPROM (PEPROM)
PEB2
2
0
Advance Information
PEPROM Registers
PEB1
1
0
PEB0
Bit 0
0
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