MCP4531 Microchip Technology Inc., MCP4531 Datasheet - Page 56

• Manufacturer Part Number: MCP4531
• Description: 7/8-bit Single/dual I 2 C Digital Pot With Non-volatile Memory
• Manufacturer: Microchip Technology Inc.

MCP454X/456X/464X/466X
TABLE 7-2:
DS22107A-page 56
Note 1:
0Ch
0Dh
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Eh
Value
0Fh
00h
01h
02h
03h
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
2:
3:
Volatile Wiper 0
Volatile Wiper 1
Non Volatile Wiper 0
Non Volatile Wiper 1
Volatile TCON Register Write Data
Status Register
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
Data EEPROM
The Data Memory is only 9-bits wide, so the MSb is ignored by the device.
Increment or Decrement commands are invalid for these addresses.
I
2
Address
C read operation will read 2 bytes, of which the 10-bits of data are contained within.
Function
MEMORY MAP AND THE SUPPORTED COMMANDS
Write Data
Read Data
Increment Wiper
Decrement Wiper
Write Data
Read Data
Increment Wiper
Decrement Wiper
Write Data
Read Data
High Voltage Increment
High Voltage Decrement
Write Data
Read Data
High Voltage Increment
High Voltage Decrement
Read Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
Write Data
Read Data
High Voltage Increment
High Voltage Decrement
Command Operation
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
nn nnnn nnnn
(10-bits)
Data
—
—
—
—
—
—
—
—
—
—
(1)
Wiper Lock 0 Disable
Wiper Lock 1 Disable
Write Protect Disable
Comment
Wiper Lock 0 Enable
Wiper Lock 1 Enable
Write Protect Enable
© 2008 Microchip Technology Inc.