STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 50

• 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

Keypad controller
12.5
12.6
50/63
KPC_row_lsb register
Table 48. Bit description
KPC_ctrl_msb register
Table 49. Bit description
Reset Value
Reset Value
Read/Write
Read/Write
Name
Name
Bit
Bit
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
RW
RW
0
7
7
0
Output Row 7
Output Row 6
Output Row 5
Output Row 4
Output Row 3
Output Row 2
Output Row 1
Output Row 0
ScanCount3
ScanCount2
ScanCount1
ScanCount0
DKey_3
DKey_2
DKey_1
DKey_0
Name
Name
ScanCount0 ~ 3
RW
RW
6
0
6
0
RW
RW
5
0
5
0
‘1’ to turn on scanning of row 7; ‘0’ to turn off
‘1’ to turn on scanning of row 6; ‘0’ to turn off
‘1’ to turn on scanning of row 5; ‘0’ to turn off
‘1’ to turn on scanning of row 4; ‘0’ to turn off
‘1’ to turn on scanning of row 3; ‘0’ to turn off
‘1’ to turn on scanning of row 2; ‘0’ to turn off
‘1’ to turn on scanning of row 1; ‘0’ to turn off
‘1’ to turn on scanning of row 0; ‘0’ to turn off
Number of key scanning cycles elapsed before a confirmed
key data is updated into output data FIFO (0 ~ 15 cycles)
Set ‘1’ to use Input Column 3 as dedicated key
Set ‘1’ to use Input Column 2 as dedicated key
Set ‘1’ to use Input Column 1 as dedicated key
Set ‘1’ to use Input Column 0 as dedicated key
Output Row 0 ~ 7
RW
RW
4
0
4
0
RW
RW
3
0
3
0
Description
Description
RW
RW
2
0
2
0
DKey_0 ~ 3
RW
RW
1
0
1
0
STMPE2403
RW
RW
0
0
0
0