lm8328tmx National Semiconductor Corporation, lm8328tmx Datasheet - Page 35

• Manufacturer Part Number: lm8328tmx
• Description: Mobile I/o Companion Supporting Keyscan, I/o Expansion Pwm, And Access.bus Host Interface
• Manufacturer: National Semiconductor Corporation

13.4.7 GPIOOMS0 - GPIO Open Drain Mode Select
Register 0
13.4.8 GPIOOME1 - GPIO Open Drain Mode Enable
Register 1
13.4.9 GPIOOMS1 - GPIO Open Drain Mode Select
Register 1
13.4.10 GPIOOME2 - GPIO Open Drain Mode Enable
Register 2
Register - Name
Register - Name
Register - Name
Register - Name
KPY[11:8]ODE
KPX[7:0]ODM
KPY[7:0]ODM
KPY[7:0]ODE
GPIOOMS0
GPIOOME1
GPIOOMS1
GPIOOME2
Bit - Name
Bit - Name
Bit - Name
Bit - Name
(reserved)
Address
Address
Address
Address
TABLE 58. GPIOOME1 - GPIO Open Drain Mode Enable Register 1
TABLE 60. GPIOOME2 - GPIO Open Drain Mode Enable Register 2
TABLE 57. GPIOOMS0 - GPIO Open Drain Mode Select Register 0
TABLE 59. GPIOOMS1 - GPIO Open Drain Mode Select Register 1
0xE1
0xE2
0xE3
0xE4
Bit
7:0
Bit
7:0
Bit
7:0
Bit
7:4
3:0
Default
Default
Default
Default
Type
Type
Type
Type
R/W
R/W
R/W
R/W
0x0
0x0
0x0
0x0
0x8
Configures the Open Drain drive source on KPX[7:0] if selected by
GPIOOME0.
0: Only nmos transistor is active in output driver stage. Output can be
driven to gnd or Hi-Z
1: Only pmos transistor is active in output driver stage. Output can be
driven to VCC or Hi-Z
Configures KPY[7:0] for Open Drain or standard output functionality.
The Open Drain drive source is configured by GPIOOMS1.
Open Drain Enable on KPY[7:0]
0: full buffer
1: open drain functionality
Configures the Open Drain drive source on KPY[7:0] if selected by
GPIOOME1.
0: Only nmos transistor is active in output driver stage. Output can be
driven to gnd or Hi-Z
1: Only pmos transistor is active in output driver stage. Output can be
driven to VCC or Hi-Z
Configures KPY[11:8] for Open Drain or standard output functionality.
The Open Drain drive source is configured by GPIOOMS2.
(reserved)
Open Drain Enable on KPY[11:8]
0: full buffer
1: open drain functionality
Note: KPY11/IRQN ball defaults to Open Drain Mode Enable after
reset.
35
Register Function
Register Function
Register Function
Register Function
Bit Function
Bit Function
Bit Function
Bit Function
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