STMPE1601 datasheet(48/61 Pages) STMICROELECTRONICS

No de pièce	STMPE1601

Description	16-bit enhanced port expander with keypad and PWM controller Xpander Logic

PDF	61 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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48 / 61 page

Keypad controller

STMPE1601

48/61

KPC_ROW_lsb

Keypad controller row (LSB)

Address:

0x62

Type:

Reset:

0x00

Description:

Keypad row scanning register.

KPC_CTRL_msb

Keypad controller control (MSB)

Address:

0x63

Type:

R/W

Reset:

0x00

Description:

Keypad control register.

432

OUTPUT ROW 0 ~ 7

R/W

000

[7:0] OUTPUT ROW 0 ~ 7:

‘1’ to turn on scanning of the corresponding row;

‘0’ to turn off

432

SCAN_COUNT_0 ~ 3

DKEYy_0 ~ 3

000

[7:4] SCAN_COUNT_0~ 3:

Number of key scanning cycles elapsed before a confirmed key data is updated into output

data FIFO (0 ~ 15 cycles)

[3] DKEY_3:

Set ‘1’ to use input column 3 as dedicated key

[2] DKEY_2:

Set ‘1’ to use input column 2 as dedicated key

[1] DKEY_1:

Set ‘1’ to use input column 1 as dedicated key

[0] DKEY_0:

Set ‘1’ to use input column 0 as dedicated key

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