SX8661I07AULTRT Semtech, SX8661I07AULTRT Datasheet - Page 75

• Manufacturer Part Number: SX8661I07AULTRT
• Description: IC, Capacitive Button Touch And Proximity Controller, 8 SENSOR, MLPQ-28
• Manufacturer: Semtech

Specifications of SX8661I07AULTRT

• Controller Type: Capacitive Touch Screen
• Ic Interface Type: I2C
• Supply Voltage Range: 2.7V To 3.6V
• Operating Temperature Range: -40°C To +85°C

ADVANCED COMMUNICATIONS & SENSING
6.6 SPM Gateway Registers
The SX8661 I2C interface offers two registers for exchanging the SPM data with the host.
• SpmCfg
• SpmBaseAddr
The exchange of data, read and write, between the host and the SPM is always done in bursts of eight bytes.
The base address of each burst of eight bytes is a modulo 8 number, starting at 0x00 and ending at 0x78.
The registers SpmKeyMsb and SpmKeyLsb are required for NVM programming as described in section 6.7.
Revision v3.2, January 2011
Address
Address
0x0E
Address
Address
0xAC
0xAD
0x0D
Name
SpmBaseAddr
Name
SpmKeyMsb
Name
SpmKeyLsb
Name
SpmCfg
Table 38
Bits
7:6
5:4
3
2:0
Bits
7:0
Bits
7:0
Bits
7:0
SPM Key MSB at I2C register address 0xAC
Table 36
Low Power, Capacitive Button Touch and Proximity Controller
Table 37
Description
SPM Base Address (modulo 8).
The lowest address is 0x00 (default)
The highest address is 0x78.
Description
SPM to NVM burn Key MSB
Description
SPM to NVM burn Key LSB
© 2011 Semtech Corp.
Description
00: Reserved
Defines the normal operation or SPM mode
00: I2C in normal operation mode (default)
01: I2C in SPM mode
10: Reserved
11: Reserved
Defines r/w direction of SPM
0: SPM write access (default)
1: SPM read access
000: Reserved
Table 39
SPM access configuration
SPM Base Address
SPM Key LSB
75
(8 sensors) with LED Drivers and Analog Output
Unlock requires writing data: 0x62
Unlock requires writing data: 0x9D
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