MCP1726T-ADJZEMF Microchip Technology, MCP1726T-ADJZEMF Datasheet - Page 75

• Manufacturer Part Number: MCP1726T-ADJZEMF
• Description: Regulator, Extended Industrial, HVSON, 8-Pin|
• Manufacturer: Microchip Technology

11.0
The EEPROM data memory is readable and writable
during normal operation (full V
is not directly mapped in the register file space.
Instead, it is indirectly addressed through the Special
Function Registers. There are four SFRs used to read
and write this memory:
• EECON1
• EECON2 (not a physically implemented register)
• EEDAT
• EEADR
EEDAT holds the 8-bit data for read/write and EEADR
holds the address of the EEPROM location being
accessed. PIC12F683 has 256 bytes of data EEPROM
with an address range from 0h to FFh.
REGISTER 11-1:
REGISTER 11-2:
 2003 Microchip Technology Inc.
DATA EEPROM MEMORY
bit 7-0
bit 7-0
EEDAT — EEPROM DATA REGISTER (ADDRESS: 9Ah)
bit 7
EEDATn: Byte Value to Write to or Read From Data EEPROM bits
Legend:
R = Readable bit
- n = Value at POR
bit 7
EEADR: Specifies One of 256 Locations for EEPROM Read/Write Operation bits
Legend:
R = Readable bit
- n = Value at POR
EEDAT7
EEADR — EEPROM ADDRESS REGISTER (ADDRESS: 9Bh)
EADR7
R/W-0
R/W-0
DD
range). This memory
EEDAT6
EADR6
R/W-0
R/W-0
Advance Information
EEDAT5
EADR5
R/W-0
R/W-0
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
EEDAT4
EADR4
R/W-0
R/W-0
The EEPROM data memory allows byte read and write.
A byte write automatically erases the location and
writes the new data (erase before write). The EEPROM
data memory is rated for high erase/write cycles. The
write time is controlled by an on-chip timer. The write
time will vary with voltage and temperature as well as
from chip-to-chip. Please refer to AC Specifications in
Section 15.0 “Electrical Specifications” for exact
limits.
When the data memory is code protected, the CPU
may continue to read and write the data EEPROM
memory. The device programmer can no longer access
the data EEPROM data and will read zeroes.
Additional information on the data EEPROM is
available in the PICmicro
Manual, (DS33023).
EEDAT3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
EADR3
R/W-0
R/W-0
EEDAT2 EEDAT1
EADR2
R/W-0
R/W-0
PIC12F683
®
Mid-Range Reference
x = Bit is unknown
x = Bit is unknown
EADR1
R/W-0
R/W-0
DS41211A-page 73
EEDAT0
EADR0
R/W-0
R/W-0
bit 0
bit 0