EVAL-AD7877EBZ Analog Devices Inc, EVAL-AD7877EBZ Datasheet - Page 38

• Manufacturer Part Number: EVAL-AD7877EBZ
• Description: BOARD EVALUATION FOR AD7877
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7877EBZ

• Main Purpose: Interface, Touch Screen Controller
• Embedded: No
• Utilized Ic / Part: AD7877
• Primary Attributes: 4-Wire Resistive Touch Screen Controller, SPI Interface, On-Chip: Temp Sensor, Voltage Reference, 8-Bit DAC
• Secondary Attributes: USB GUI, LCD Noise Reduction Feature, 2.7 ~ 5.25 V, Wake Up on Touch Feature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7877
Register Name: Sequencer Register 0
Write Address: 1100; Read Address: 01100; Default Value: 0x000; Type: Read/Write.
Table 19.
Bit
0
1
2
3
4
5
6
7
8
9
10
11
Register Name: Sequencer Register 1
Write Address: 1101; Read Address: 01101; Default Value: 0x000; Type: Read/Write.
Table 20.
Bit
0
1
2
3
4
5
6
7
8
9
10
11
Name
Not Used
Z1_SS
BAT2_SS
BAT1_SS
AUX3_SS
AUX2_SS
AUX1_SS
Z2_SS
XPOS_SS
YPOS_SS
Name
Not Used
BAT2_MS
BAT1_MS
AUX3_MS
AUX2_MS
AUX1_MS
Z2_MS
XPOS_MS
YPOS_MS
TEMP2_SS
TEMP1_SS
Z1_MS
TEMP2_MS
TEMP1_MS
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
This bit is not used
Setting this bit includes the Z1 touch-pressure measurement (X+ input) in a slave mode sequence
Setting this bit includes a temperature measurement using differential conversion in a slave mode
sequence
Setting this bit includes a temperature measurement using single-ended conversion in a slave mode
sequence
Setting this bit includes measurement of Battery Monitor Input 2 in a slave mode sequence
Setting this bit includes measurement of Battery Monitor Input 1 in a slave mode sequence
Setting this bit includes measurement of Auxiliary Input 3 in a slave mode sequence
Setting this bit includes measurement of Auxiliary Input 2 in a slave mode sequence
Setting this bit includes measurement of Auxiliary Input 1 in a slave mode sequence
Setting this bit includes the Z2 touch-pressure measurement (Y− input) in a slave mode sequence
Setting this bit includes measurement of the X position (Y+ input) in a slave mode sequence
Setting this bit includes measurement of the Y position (X+ input) in a slave mode sequence
Description
This bit is not used
Setting this bit includes the Z1 touch-pressure measurement (X+ input) in a master mode sequence
Setting this bit includes a temperature measurement using differential conversion in a master mode
sequence
Setting this bit includes a temperature measurement using single-ended conversion in a master mode
sequence
Setting this bit includes measurement of Battery Monitor Input 2 in a master mode sequence
Setting this bit includes measurement of Battery Monitor Input 1 in a master mode sequence
Setting this bit includes measurement of Auxiliary Input 3 in a master mode sequence
Setting this bit includes measurement of Auxiliary Input 2 in a master mode sequence
Setting this bit includes measurement of Auxiliary Input 1 in a master mode sequence
Setting this bit includes the Z2 touch-pressure measurement (Y− input) in a master mode sequence
Setting this bit includes measurement of the X position (Y+ input) in a master mode sequence
Setting this bit includes measurement of the Y position (X+ input) in a master mode sequence
Rev. B | Page 38 of 44