STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 38

• Manufacturer Part Number: STEVAL-TCS003V1
• Description: BOARD DEMO EXPANDER STMPE2403
• Manufacturer: STMicroelectronics

Specifications of STEVAL-TCS003V1

• Main Purpose: Interface, GPIO Expander
• Embedded: No
• Utilized Ic / Part: STMPE2403
• Primary Attributes: 8/16/24-Bit 24-Port GPIO Expander over I2C
• Secondary Attributes: 3 8-Bit PWM Output for LEDs, Keyboard Matrix Scan, Special Key Support
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8206

GPIO controller
10.4
38/63
MUX Control Register (MCR)
STMPE2403 is integrated with 2 SPDT bi-directional signal multiplexer. The Ron of the
multiplexer is 5 OHM (Typical). Signal level is 1.8V (MAX). The MUX are controlled by the
MUX Control register.
MCR is to control the two analog multiplexers operation.
Table 36. Bit description
Reset
Value
R/W
Bits
Bit
0
1
2
3
MCR
Name
M1C0
M1C1
M2C0
M2C1
R
7
0
MUX 1 Control 0 bit selects whether Mux1In_0 or Mux1In_1 connects to
Mux1Out.
‘0’ – Mux1In_0 is connected to the Mux1Out.
‘1’ – Mux1In_1 is connected to the Mux1Out.
MUX 1 Control 1 bit enables the MUX 1.
‘0’ – Enables the MUX 1.
‘1’ – Disables the MUX 1.
MUX 2 Control 0 bit selects whether Mux2In_0 or Mux2In_1 connects to
Mux2Out.
‘0’ – Mux1In_0 is connected to the Mux1Out.
‘1’ – Mux1In_1 is connected to the Mux1Out.
MUX 2 Control 1 bit enables the MUX 2.
‘0’ – Enables the MUX 2.
‘1’ – Disables the MUX 2.
R
6
0
RESERVED
R
5
0
R
4
0
Description
M1C1
RW
3
0
M2C1
RW
2
0
M1C1
RW
1
0
STMPE2403
M1C0
RW
0
0