LPC2917/01 NXP [NXP Semiconductors], LPC2917/01 Datasheet - Page 46
LPC2917/01
Manufacturer Part Number
LPC2917/01
Description
ARM9 microcontroller with CAN and LIN
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.LPC291701.pdf
(86 pages)
- Current page: 46 of 86
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NXP Semiconductors
LPC2917_19_01_2
Preliminary data sheet
Fig 11. Power, Clock, and Reset control Sub System (PCRSS) block diagram
AHB2DTL
BRIDGE
6.15.1 Clock description
OSCILLATOR
LOW POWER
OSCILLATOR
REGISTERS
REGISTERS
EXTERNAL
The PCRSS is clocked by a number of different clocks. CLK_SYS_PCRSS clocks the
AHB side of the AHB to DTL bus bridge and CLK_PCR_SLOW clocks the CGU, RGU and
PMU internal logic, see
BASE_SYS_CLK, which can be switched off in low-power modes. CLK_PCR_SLOW is
derived from BASE_PCR_CLK and is always on in order to be able to wake up from
low-power modes.
CGU0/1
RING
RGU
POR
FDIV[6:0]
PLL
RESET OUTPUT
DELAY LOGIC
DEGLITCH/
INPUT
SYNC
Rev. 02 — 17 June 2009
Section
OUT11
OUT0
OUT1
OUT5
OUT7
OUT9
OUT6
CGU0
RGU
6.7.2. CLK_SYS_PCRSS is derived from
LPC2917/01; LPC2919/01
FDIV
PLL
ARM9 microcontroller with CAN and LIN
OUT
CGU1
PCR_RST
reset from watchdog counter
WARM_RST
RGU_RST
COLD_RST
POR_RST
AHB_RST
SCU_RST
RST (device pin)
REGISTERS
CONTROL
ENABLE
CLOCK
CLOCK
GATES
PMU
© NXP B.V. 2009. All rights reserved.
PMU
wakeup_a
002aae355
disable:
grant
request
master
branch
clocks
AHB
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