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PIN IC specification Assignment I/O Explanation
52 P73/INT3/T0IN Rcin IN Remote control signal input
53 RES RESET in IN CPU Reset input RESET : Low (and for on-board write)
54 XT1 Xin IN 32.678KHz X’tal input (for clock timer)
55 XT2 Xout OUT 32.678KHz X’tal output (for clock timer)
56 VSS1 Vss IN GND (0Vdc)
57 CF1/AN12 Xti IN Main clock input (8MHz ceramic oscillator)
58 CF2/AN13 Xto OUT Main clock output (8MHz ceramic oscillator)
59 VDD1 Power IN IN VDD1 (5Vdc±10%)
60 P80/AN0 Key in IN Panel switch input
61 P81/AN1 Reserve IN GND
62 P82/AN2 PANEL READY IN Panel Ready (for PDP-LG) OK : High NG : Low only PDP
63 P10/SO0 VS-ON OUT VS-ON (for PDP-LG) ON : High OFF : Low only PDP
64 P11/SI0/SB0 REG SW1 OUT REG SW1 (ON : Low OFF : High)
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