OM13013,598 NXP Semiconductors, OM13013,598 Datasheet - Page 12

• Manufacturer Part Number: OM13013,598
• Description: BOARD DEMO IAR LPC1227 JLINKLITE
• Manufacturer: NXP Semiconductors
• Series: -r

Specifications of OM13013,598

• Design Resources: LPC122x-SK Brd Schematic
• Processor To Be Evaluated: LPC1227
• Processor Series: LPC122x
• Data Bus Width: 32 bit
• Interface Type: UART, SSP, SPI, I2C
• Cpu Core: ARM Cortex-M0
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3 V to 3.6 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-6885

NXP Semiconductors
4.5 Register description
UM10441
User manual
Fig 3.
SYSCONFIG
wdt_osc_clk
sys_osc_clk
irc_osc_clk
irc_osc_clk
LPC122x CGU block diagram
SYSPLLCLKSEL
sys_pllclkin
All registers, regardless of size, are on word address boundaries. Details of the registers
appear in the description of each function.
syscon RTC clock divider
rtc_osc 1 Hz delayed clk
rtc_osc 1 kHz clk
rtc_osc 1 Hz clk
MAINCLKSEL
sys_pllclkout
SYS PLL
wdt_osc_clk
irc_osc_clk
main clock
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 15 February 2011
WWDT
PMU
DIVIDER
CLOCK
wdt_osc_clk
sys_osc_clk
irc_osc_clk
3
7
WDCLKSEL
system clock
CLKOUTUEN
SYSCFG
Chapter 4: LPC122x System control (SYSCON)
AHBCLKCTRL[1:31]
31
DIVIDER
DIVIDER
DIVIDER
DIVIDER
CLOCK
CLOCK
CLOCK
CLOCK
RTC
peripheral clocks
(SSP, UART0, UART1)
peripheral clocks
(IOCONFIG glitch filter)
RTC clock select in PMU
clkout_clk
wdt_clk
sys_ahb_clk[0]
(system)
UM10441
© NXP B.V. 2011. All rights reserved.
AHB clocks
1 to 31
(memories
and peripherals)
12 of 442