pc87591l-n05 National Semiconductor Corporation, pc87591l-n05 Datasheet - Page 181
![no-image](/images/no-image-200.jpg)
pc87591l-n05
Manufacturer Part Number
pc87591l-n05
Description
Lpc Mobile Embedded Controller
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87591L-N05.pdf
(401 pages)
- Current page: 181 of 401
- Download datasheet (2Mb)
Revision 1.2
4.0 Embedded Controller Modules
4.12.4 Operation
Initializing the DAC
The PC87591L-N05 wakes up after power-up with all the D/A channels disabled (DACEN0-3 bits in DACCTRL register are
cleared to 0). In this state, all DAC activities are halted, and its current consumption is reduced to zero.
DACDATn registers (n=0 to 3) must be initialized to 00
in DACCTRL register to 1.
Enabling and Disabling the DAC
Enabling the DAC. Each channel of the DAC is enabled independently by setting its DACEN bit. After enabling, it settles to
the value stored in DACDATn register after the specified settling time.
Disabling the DAC. The DAC channels may be independently disabled in order to reduce current consumption by clearing
the corresponding DACENn (n=0 to 3) bit in DACCTRL register. In this case, the output pin drives 0V, even if the respective
DACDATn register does not contain 00
All DAC channels are automatically disabled when entering Idle mode if ENIDLE bit in DACCTRL register is cleared to 0.
This happens regardless of the state of DACENn (n=0 to 3) bit in DACCTRL register. In this case, the DA0-3 outputs drive
0V.
If the ENIDLE bit is set to 1, entering the Idle mode does not affect DAC operation, and DA0-3 outputs drive the voltage level
set by DACDATn (n=0 to 3) registers.
4.12.5 DAC Registers
The DAC interfaces with the core using one control and four data registers. These registers are mapped to the core address
space, as defined in Appendix A on page 367.
DAC Register Map
Mnemonic
DACCTRL
DACDAT0
DACDAT1
DACDAT2
DACDAT3
DAC Control
DAC Data Channel 0
DAC Data Channel 1
DAC Data Channel 2
DAC Data Channel 3
16
.
(Continued)
Register Name
16
, or according to the required output level, before setting DACEN0-3
181
Type
R/W
R/W
R/W
R/W
R/W
www.national.com
Related parts for pc87591l-n05
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![pc87591l](/images/no-image3.png)
Part Number:
Description:
Lpc Mobile Embedded Controllers
Manufacturer:
National Semiconductor Corporation
Datasheet:
![PC875](/photos/7/69/76943/425-8-dip_tmb.jpg)
Part Number:
Description:
PHOTOCOUPLER 2CH OUT 8-DIP
Manufacturer:
Sharp Microelectronics
Datasheet:
![mma1270keg](/images/no-image3.png)
Part Number:
Description:
Freescale Semiconductor Technical Data
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC12034](/images/no-image3.png)
Part Number:
Description:
Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2350](/images/no-image3.png)
Part Number:
Description:
Pllatinum Tm Fractional N Rf / Integer N If Dual Low Power Frequency Synthesizer
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2324](/images/no-image3.png)
Part Number:
Description:
Pllatinum? 2.0 Ghz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2301](/images/no-image3.png)
Part Number:
Description:
Pllatinumtm 160 Mhz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![NDS8963](/images/no-image3.png)
Part Number:
Description:
Dual N-channel Enhancement Mode Field Effect Transistor
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM1201](/images/no-image3.png)
Part Number:
Description:
Video Amplifier System (obsolete)
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM3501TL-16](/images/no-image3.png)
Part Number:
Description:
Synchronous Step-up DC/DC Converter For White Led Applications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![AD9621](/images/no-image3.png)
Part Number:
Description:
CLC420 - High Speed, Voltage Feedback op Amp, Package: Lcc, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM2403](/images/no-image3.png)
Part Number:
Description:
Monolithic Triple 4.5 CRT Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM592M](/images/no-image3.png)
Part Number:
Description:
Differential Video Amplifier
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC10061](/images/no-image3.png)
Part Number:
Description:
ADC10061 - 10-Bit 600 NS A/D Converter With Input Multiplexer And Sample/Hold, Package: Soic Wide, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS36277TMX](/images/no-image3.png)
Part Number:
Description:
DS36277 - Dominant Mode Multipoint Transceiver, Package: Soic Narrow, Pin Nb=8
Manufacturer:
National Semiconductor Corporation
Datasheet: