Requirements
2-12
AT91CAP9-STK Starter Kit User Guide
6351B–CAP–27-Jun-08
2.4
Characteristics
2.4.1
Functional Characteristics
2.4.1.1
F1: AT91CAP9 Microcontroller
The AT91CAP9-STK microcontroller core block implements the necessary digital-system core functions.
It's composed of the following elements:
One 32-bit-ARM9
®
AT91CAP9 microcontroller core and its power supplies (see below).
One 1.8V, 512 Mbytes, 8-bit NAND Flash,
One 1.8V, 64 Mbytes, 32-bit SDRAM Application Volatile Memory
One optional 3.3V DataFlash
®
memory from 512 Kbytes to 8 Mbytes
One Debug and JTAG Test unit (
See “F14: Programming and Configuration” on page 2-27.
One MPB
2.4.1.1.1 AT91CAP9 Power Supplies
The power supply of the AT91CAP9 Microcontroller is shown below.
For VDDIOP1 and VDDMPI0, the choice is made by 0
Ω
resistors:
Table 2-15. AT91CAP9 Power Supply
Power Supply Name
Power Supply
VDDCORE
1V2_CAP9
VDDPLL
3V3
VDDUPLL
1V2_CAP9 (RC filtered)
VDDUTMII
3V3
VDDIOP0
3V3
VDDIOP1
3V3 or 1V8_CAP9
VDDUTMIC
1V2_CAP9
VDDIOM
1V8
VDDMPIO
3V3 or 1V8_FPGA
VDDBU
1V2_SAVE or 1V2_CAP9
VDDANA
3V3 filtered
VREFP
VREFP (3V)
J24
VDDMPIO
C268
100nF
1
2
R151
0R
NC
3V3
R152
0R
1V8
1V8
R27
0R
NC
R26
0R
VDDIOP1
C86
10nF
1
2
3V3