Personal Computer User Manual

Intel® PXA27x Processor Family Power Requirements
Application Note 7
Figure 1. Intel® PXA27x Processor Internal and External Power Domains
SRAM
0
VCC_R0
SRAM
1
VCC_R1
SRAM
2
VCC_R2
SRAM
3
VCC_R3
RTC
32.768 k
CPM
32.768 k
PXTAL
13 M
TXTAL
32.768 k
PWR_I
2
C
13 M
Timer
13 M
SSPs
13 M
PWMs
13 M
I
2
C
32.842 M
ICP
48.000 M
USB-C
48.000 M
DMA/
Bridge
USB-H
48.000 M
LCD
Control
MEM
Control
C-PLL
prg. frq.
P-PLL
312 M
CPU
I
2
S
prg. frq.
MMC
19.500 M
SRAM
Control
KYBD
32.768 k
AC
(ext clk)
V-Reg
VCC_CPU
VCC_PER
VCC_PI
VCC_RTC
VCC_OSC
VCC_PLL
VCC_PLL VCC_CORE VCC_SRAM
VCC_MEMVCC_LCDVCC_IO
VCC_BATT
VCC_OSC
USIM
48.000 M
VCC_BBVCC_IO
UARTs
14.857 M
BB
48.000 M
VCC_USIM
JTAG
TCK
MSHC
19.500 M
Intr
Control
DC-DC
Lin-Reg L1
VCC_REG
VCC_USB