I am trying to get a clock output on P1.0 of the T89C51AC2 using Timer 2 in Programmable Clock-Output Mode.

Following the Datasheet I have initialized the timer with:

// Optic Clock output on pin P1_0 for @ 625mhz
T2MOD |= 0x02; // T20E Set
T2CON = 0x00; // Clear C/T2
RCAP2H = 0xFF;
RCAP2L = 0xF8; // 65536 - 8 for timer count
TH2 = 0xFF;
TL2 = 0xF8; // Repeat in Timer
T2CON |= 0x04; // TR2 Run control

But, when this is run, the state of P1.0 does not change at all. In debug, the TH2 & TL2 are going through the correct loop...


Any ideas on what I am missing here to get the clock output on P1.0?