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<strong>eZ80</strong> <strong>CPU</strong><br />
User Manual<br />
47<br />
IN r, (C)<br />
Input I/O Port to Register<br />
Operation<br />
Description<br />
r ← (C)<br />
The contents of BC (15:0) are placed on address bus (15:0) and zero on<br />
address bus (23:16). The byte at this I/O address is loaded into the specified<br />
register.<br />
Condition Bits Affected<br />
S<br />
Z<br />
H<br />
P/V<br />
N<br />
C<br />
Set if Bit 7 is 1; reset otherwise.<br />
Set if byte is 0; reset otherwise.<br />
Reset.<br />
Set if parity is even; reset otherwise.<br />
Reset.<br />
Not affected.<br />
Mnemonic Operands ADL Mode Cycles Op Codes<br />
IN (C) ind 3 ED, jj<br />
jj = binary code 01 rrr 000 where rrr identifies the A, B, C, D, E, H, or L<br />
register assembled as follows into the object code.<br />
Register<br />
rrr<br />
A 111<br />
B 000<br />
C 001<br />
D 010<br />
E 011<br />
H 100<br />
L 101<br />
UM007701-1100