Datasheet

X = unused bits; if read, zero results.
Table 6. Power-Up Configuration
REGISTER
FUNCTION
POWER-UP CONDITION
ADDRESS
CODE
(HEX)
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
Port Register
Bits 4 to 31
GPIO Output Low
0x24 to
0x3F
X X X X X X X 0
Configuration
Register
Shutdown Enabled
Transition Detection Disabled
0x04 0 0 X X X X X 0
Input Mask
Register
All Clear (Masked Off) 0x06 X 0 0 0 0 0 0 0
Port
Configuration
P7, P6, P5, P4: GPIO Inputs without Pullup 0x09 1 0 1 0 1 0 1 0
Port
Configuration
P11, P10, P9, P8: GPIO Inputs without Pullup 0x0A 1 0 1 0 1 0 1 0
Port
Configuration
P15, P14, P13, P12: GPIO Inputs without Pullup 0x0B 1 0 1 0 1 0 1 0
Port
Configuration
P19, P18, P17, P16: GPIO Inputs without Pullup 0x0C 1 0 1 0 1 0 1 0
Port
Configuration
P23, P22, P21, P20: GPIO Inputs without Pullup 0x0D 1 0 1 0 1 0 1 0
Port
Configuration
P27, P26, P25, P24: GPIO Inputs without Pullup 0x0E 1 0 1 0 1 0 1 0
Port
Configuration
P31, P30, P29, P28: GPIO Inputs without Pullup 0x0F 1 0 1 0 1 0 1 0
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