lm8328tmx National Semiconductor Corporation, lm8328tmx Datasheet - Page 33

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

* written values of 0x2 and 0x3 will always be read back as 0x3
13.4.4 IOPC1 - Pull Resistor Configuration Register 1
Register - Name
Register - Name
KPX5PR[1:0]
KPX4PR[1:0]
KPX3PR[1:0]
KPX2PR[1:0]
KPX1PR[1:0]
KPX0PR[1:0]
KPY7PR[1:0]
KPY6PR[1:0]
KPY5PR[1:0]
KPY4PR[1:0]
KPY3PR[1:0]
Bit - Name
IOPC1**
Address
Address
11:10
0xAC
15:14
13:12
11:10
9:8
7:6
5:4
3:2
1:0
Bit
9:8
7:6
TABLE 54. IOPC1 - Pull Resistor Configuration Register 1
Default
Type
Type
R/W
0x2
0x2
0x2
0x2
0x2
0x2
0x1
0x1
0x1
0x1
0x1
Resistor enable for KPX5 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPX4 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPX3 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPX2 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPX1 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPX0 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Defines the pull resistor configuration for balls KPY[7:0]
Resistor enable for KPY7 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPY6 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPY5 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPY4 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
Resistor enable for KPY3 ball
00: no pull resistor at ball
01:pull down resistor programmed
1x: pull up resistor programmed
33
Register Function
Register Function
Bit Function
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