ADPD4100 datasheet(85/101 Pages) AD

85 / 101 page

Data Sheet

ADPD4100/ADPD4101

Rev. 0 | Page 85 of 101

Addr

Name

Bits

Bit Name

Description

Reset Access

HOLD_REGS_H

Prevent Update of Time Slot H data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_G

Prevent update of Time Slot G data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_F

Prevent update of Time Slot F data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_E

Prevent update of Time Slot E data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_D

Prevent update of Time Slot D data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_C

Prevent update of Time Slot C data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_B

Prevent update of Time Slot B data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

HOLD_REGS_A

Prevent update of Time Slot A data registers.

0x0

R/W

0: allow data register update.

1: hold current contents of data register.

0x00B6 I2C_KEY

[15:12] I2C_KEY_MATCH

Write the I2C_KEY_MATCH bits to specify which GPIOx pins must

be high to change the slave address. A 0 ignores that specific

GPIO input. A 1 selects which GPIOx must be high to change the

address. Any combination is allowed. Use Bit 12 for GPIO0, Bit 13

for GPIO1, Bit 14 for GPIO2, and Bit 15 for GPIO3.

0x0

R/W

[11:0]

I2C_KEY

I2C address change key. Must write these bits to 0x4AD to change

address. Write these bits at the same time that the I2C_KEY_MATCH

bits are written.

0x0

R0/W

0x00B7 I2C_ADDR

[15:8]

I2C_SLAVE_KEY2 I2C key, Part 2. Must be written to 0xAD immediately following the

write of the I2C_KEY bits. The GPIOx pins as selected in the

I2C_KEY_MATCH bits must also be set high at this time.

0x0

R/W

[7:1]

I2C_SLAVE_ADDR I2C slave address update field. Write the desired 7-bit slave

address along with proper keys to change the I2C slave address.

0x24 R/W

Reserved

Reserved.

0x0

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