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5 INITIAL RESET
5.3 Initial Settings After an Initial Reset
The CPU internal registers are initialized as follows at initial reset.
R0–R7: 0x0
PSR:
0x0 (interrupt level = 0, interrupt disabled)
SP:
0x0
PC:
Reset vector stored at the beginning of the vector table is loaded by the reset handling.
The internal RAM and display memory should be initialized with software as they are not initialized at initial reset.
The internal peripheral modules are initialized to the default values (except some undefined registers). Change the
settings with software if necessary. For the default values set at initial reset, see the list of I/O registers in Appendix
or descriptions for each peripheral module.
5-4
EPSON
S1C17704 TECHNICAL MANUAL
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