Philips LPC2119 User Manual page 64

Philips Semiconductors
ARM-based Microcontroller
Power Control for Peripherals Register (PCONP - 0xE01FC0C4)
The PCONP register allows turning off selected peripheral functions for the purpose of saving power. A few peripheral functions
cannot be turned off (i.e. the Watchdog timer, GPIO, the Pin Connect block, and the System Control block). Each bit in PCONP
controls one of the peripherals. The bit numbers correspond to the related peripheral number as shown in the VPB peripheral
map in the LPC2119/2129/2292/2294 Memory Addressing section.
Table 31: Power Control for Peripherals Register for LPC2119/2129 (PCONP - 0xE01FC0C4)
PCONP Function
Reserved, user software should not write ones to reserved bits. The value read from a reserved
0 Reserved
bit is not defined.
1 PCTIM0 When 1, TIMER0 is enabled. When 0, TIMER0 is disabled to conserve power.
2 PCTIM1 When 1, TIMER1 is enabled. When 0, TIMER1 is disabled to conserve power.
3 PCURT0 When 1, UART0 is enabled. When 0, UART0 is disabled to conserve power.
4 PCURT1 When 1, UART1 is enabled. When 0, UART1 is disabled to conserve power.
5 PCPWM0 When 1, PWM0 is enabled. When 0, PWM0 is disabled to conserve power.
User software should not write ones to reserved bits. The value read from a reserved bit is not
6 Reserved
defined.
7 PCI2C When 1, the I
8 PCSPI0 When 1, the SPI0 interface is enabled. When 0, the SPI0 is disabled to conserve power.
9 PCRTC When 1, the RTC is enabled. When 0, the RTC is disabled to conserve power.
10 PCSPI1 When 1, the SPI1 interface is enabled. When 0, the SPI1 is disabled to conserve power.
11 Reserved User software should write 0 here to reduce power consumption.
12 PCAD When 1, the A/D converter is enabled. When 0, the A/D is disabled to conserve power.
When 1, CAN Controller 1 is enabled. When 0, it is disabled to save power.
13 PCCAN1
Note: the Acceptance Filter is enabled if any of CAN Controllers 1-2 is enabled.
14 PCCAN2 When 1, CAN Controller 2 is enabled. When 0, it is disabled to save power.
Reserved, user software should not write ones to reserved bits. The value read from a reserved
31:15 Reserved
bit is not defined.
Table 32: Power Control for Peripherals Register for LPC2292/2294 (PCONP - 0xE01FC0C4)
PCONP Function
Reserved, user software should not write ones to reserved bits. The value read from a reserved
0 Reserved
bit is not defined.
1 PCTIM0 When 1, TIMER0 is enabled. When 0, TIMER0 is disabled to conserve power.
2 PCTIM1 When 1, TIMER1 is enabled. When 0, TIMER1 is disabled to conserve power.
3 PCURT0 When 1, UART0 is enabled. When 0, UART0 is disabled to conserve power.
System Control Block
2
C interface is enabled. When 0, the I
LPC2119/2129/2292/2294
Description
2
C interface is disabled to conserve power.
Description
64
Preliminary User Manual
Reset
Value
0
1
1
1
1
1
0
1
1
1
1
1
1
1
1
NA
Reset
Value
0
1
1
1
January 08, 2004