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Philips Semiconductors
ARM-based Microcontroller
BOOT CONTROL ON 144-PIN PACKAGE
In the 144-pin package only, the state of the BOOT1:0 pins, while RESET is low, controls booting and initial operation. Internal
pullups in the receivers ensure high state if a pin is left unconnected. Board designers can connect weak pulldown resistors
(~10 k:) or transistors that drive low while RESET is low, to these pins to select among the following options:
Table 66: Boot Control on BOOT1:0
BOOT1
(latched from P2.27/D27 on
Reset pin rising edge only)
0
0
1
1
Note that if an application enables the Watchdog Timer to Reset the part if it's not serviced, transistors driven by RESET should
not be used.
Pin Connect Block
BOOT0
(latched from P2.26/D26 on
Reset pin rising edge only)
0
1
0
1
133
LPC2119/2129/2194/2292/2294
Boot from
8-bit memory on CS0
16-bit memory on CS0
32-bit memory on CS0
Internal Flash Memory
Preliminary User Manual
May 03, 2004
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