lm8328tmx National Semiconductor Corporation, lm8328tmx Datasheet - Page 36
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lm8328tmx
Manufacturer Part Number
lm8328tmx
Description
Mobile I/o Companion Supporting Keyscan, I/o Expansion Pwm, And Access.bus Host Interface
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM8328TMX.pdf
(58 pages)
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13.4.11 GPIOOMS2 - GPIO Open Drain Mode Select
Register 2
13.5 GPIO DATA INPUT/OUTPUT
13.5.1 GPIOPDATA0 - GPIO Data Register 0
Register - Name
Register - Name
KPY[11:8]ODM
GPIODATA0
GPIOOMS2
Bit - Name
Bit - Name
(reserved
MASK7
MASK6
MASK5
MASK4
MASK3
Address
Address
TABLE 61. GPIOOMS2 - GPIO Open Drain Mode Select Register 2
0xE5
0xC0
Bit
7:4
3:0
Bit
15
14
13
12
11
TABLE 62. GPIOPDATA0 - GPIO Data Register 0
Default
Default
Type
Type
R/W
R/W
0x0
0x0
0x0
0x0
0x0
0x0
Configures the Open Drain drive source on KPY[11:8] if selected by
GPIOOME2.
(reserved
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
This register is used for data input/output of KPX[7:0]. Every data I/O
is masked with the associated MASK register.
If one of the I/Os is defined as output (see
this register are masked with MASK and then applied to the associated
pin.
If one of the I/Os is defined as input (see
this register hold the masked input value of the associated pin.
Mask Status for KPX7 when enabled as GPIO
1: KPX7 enabled
0: KPX7 disabled
Mask Status for KPX6 when enabled as GPIO
1: KPX6 enabled
0: KPX6 disabled
Mask Status for KPX5 when enabled as GPIO
1: KPX5 enabled
0: KPX5 disabled
Mask Status for KPX4 when enabled as GPIO
1: KPX4 enabled
0: KPX4 disabled
Mask Status for KPX3 when enabled as GPIO
1: KPX3 enabled
0: KPX3 disabled
36
Register Function
Register Function
Bit Function
Bit Function
Table
Table
30124111
65) values read from
65) values written to