15-10
MC9328MX1 Reference Manual
MOTOROLA
Analog Signal Processor (ASP)
AZ_SEL
Bit 20
Auto-Zero Position Selection
—Selects the position of
auto-zero measurement.
0 = Measurement taken without the
external resistor at the R1a
and R2a pins
1 = Measurement taken with the
external resistor at R1a and
R2a pins
Reserved
Bits 19–16
Reserved—These bits are reserved and should read 0.
AZE
Bit 15
Auto-Zero Enable
—Enables/Disables the auto-zero
measurement.
0 = No auto-zero measurement
1 = Auto-zero measurement taken
before every pin input
measurement
AUTO
Bit 14
Auto Sampling
—Enables/Disables Pen A/D auto sampling
function. When set, transistor switches are sampled for
selected analog inputs X, Y, or U. This process repeats
when the IDLE counter reaches zero. In AUTO mode, the
IDLE counter is reloaded when it reaches zero.
0 = Auto sampling off (Manual
mode sampling is selected)
1 = Auto sampling on
MOD
Bits 13–12
Mode
—Selects the analog input signals for A/D sampling
dependent on AUTO bit setting. See Table 15-3.
00 = No input signal selected
01 = Auto XY, or Manual X
10 = Auto XYU, or Manual Y
11 = selects only U
SW8
Bit 11
Switch Control
—Turns the transistor switches on/off when
the AUTO function is off or when the Pen A/D is off in touch
panel idle state.
In manual modes, switches are set according to the
configuration of SW[8...1] bits.
In auto modes, switches are set by internal logic. SW[8...1]
are ignored and should be set to 0. Normal settings for
sampling X is [11000110]; Y is [00111001].
Exception cases occur when ACAL bit or ASWB bits are
set.
0 = Transistor off
1 = Transistor on
SW7
Bit 10
SW6
Bit 9
SW5
Bit 8
SW4
Bit 7
SW3
Bit 6
SW2
Bit 5
SW1
Bit 4
Reserved
Bits 3–2
Reserved—These bits are reserved and should read 0.
Table 15-7. Control Register Description (Continued)
Name
Description
Settings
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...