Microchip Technology ARD00342 Data Sheet
© 2011 Microchip Technology Inc.
DS22192D-page 41
MCP3901
7.0
INTERNAL REGISTERS
The addresses associated with the internal registers
are listed below. A detailed description of the registers
follows. All registers are 8-bit long and can be
addressed separately. Read modes define the groups
and types of registers for continuous read
communication or looping on address sets.
are listed below. A detailed description of the registers
follows. All registers are 8-bit long and can be
addressed separately. Read modes define the groups
and types of registers for continuous read
communication or looping on address sets.
.
TABLE 7-2:
REGISTER MAP GROUPING
FOR CONTINUOUS READ
MODES
FOR CONTINUOUS READ
MODES
TABLE 7-1:
REGISTER MAP
Address
Name
Bits
R/W
Description
0x00
DATA_CH0
24
R
Channel 0 ADC Data <23:0>, MSB First
0x03
DATA_CH1
24
R
Channel 1 ADC Data <23:0>, MSB First
0x06
MOD
8
R/W Delta-Sigma Modulators Output Register
0x07
PHASE
8
R/W Phase Delay Configuration Register
0x08
GAIN
8
R/W Gain Configuration Register
0x09
STATUS/COM
8
R/W Status/Communication Register
0x0A
CONFIG1
8
R/W Configuration Register 1
0x0B
CONFIG2
8
R/W Configuration Register 2
Function
Address
READ<1:0>
= 01
= 10
= 11
DATA_CH0
0x00
GROUP
TYPE
LOOP ENTIRE
REG
ISTER M
A
P
0x01
0x02
DATA_CH1
0x03
GROUP
0x04
0x05
MOD
0x06
GROUP
TYPE
PHASE
0x07
GAIN
0x08
STATUS/
COM
0x09
GROUP
CONFIG1
0x0A
CONFIG2
0x0B