ADP5585ACPZ-00-R7 datasheet(34/40 Pages) AD

Part #	ADP5585ACPZ-00-R7

Description	Keypad Decoder and I/O Expansion

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Manufacturer	AD [Analog Devices]

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ADP5585

Data Sheet

Rev. C | Page 34 of 40

POLL_TIME_CFG Register 0x37

Table 63. Register 0x37, POLL_TIME_CFG Bit Descriptions

Bit(s)

Bit Name

Access

Description

7 to 2

N/A

Reserved.

1 to 0

KEY_POLL_TIME[1:0]

Read/write

Configure time between consecutive scan cycles.

00 = 10 ms.

01 = 20 ms.

10 = 30 ms.

11 = 40 ms.

PIN_CONFIG_A Register 0x38

Table 64. PIN_CONFIG_A Bit Descriptions

Bit(s)

Bit Name

Access

Description

7 to 6

N/A

Reserved.

5

R5_CONFIG

Read/write

Reserved except for ADP5585AC_Z-01-R7 options)

0 = GPIO 6.

1 = Row 5.

4

R4_CONFIG

Read/write

0 = GPIO 5 (see R4_EXTEND_CFG in Table 66 for alternate configuration, RESET1).

1 = Row 4

3

R3_CONFIG

Read/write

0 = GPIO 4 (see R3_EXTEND_CFG[1:0] in Table 66 for alternate configuration,

LC/PWM_OUT).

1 = Row 3

2

R2_CONFIG

Read/write

0 = GPIO 3

1 = Row 2

1

R1_CONFIG

Read/write

0 = GPIO 2

1 = Row 1

0

R0_CONFIG

Read/write

0 = GPIO 1/LY (see R0_EXTEND_CFG in Table 66 for alternate configuration, LY).

1 = Row 0

PIN_CONFIG_B Register 0x39

Table 65. PIN_CONFIG_B Bit Descriptions

Bit(s)

Bit Name

Access

Description

7 to 5

N/A

Reserved.

4

C4_CONFIG

Read/write

0 = GPIO 11 (see C4_EXTEND_CFG in Table 66 for alternate configuration, RESET2).

1 = Column 4.

3

C3_CONFIG

Read/write

0 = GPIO 10.

1 = Column 3.

2

C2_CONFIG

Read/write

0 = GPIO 9.

1 = Column 2.

1

C1_CONFIG

Read/write

0 = GPIO 8.

1 = Column 1.

0

C0_CONFIG

Read/write

0 = GPIO 7.

1 = Column 0.

PIN_CONFIG_C Register 0x3A

Table 66. PIN_CONFIG_D Bit Descriptions

Bit(s)

Bit Name

Access

Description

7

PULL_SELECT

Read/write

0 = 300 kΩ resistor used for row pull-up during key scanning.

1 = 100 kΩ resistor used for row pull-up during key scanning.

6

C4_ EXTEND_CFG

Read/write

0 = C4 remains configured as GPIO 11.

1 = C4 reconfigured as RESET2 output.

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