Rainbow-electronics T89C51CC02 Bedienungsanleitung PDF herunterladen (Seite 107)

Rev.A - May 17, 2001 107

Preliminary

T89C51CC02

16.5. High Speed Output Mode

In this mode the CEX output (on port 1) associated with the PCA module will toggle each time a match occurs

between the PCA counter and the module’s capture registers. To activate this mode the TOG, MAT, and ECOM

bits in the module’s CCAPMn SFR must be set.

Figure 108. PCA High speed Output Mode

CH CL

CCAPnH CCAPnL

ECOMn

CCAPMn, n = 0 to 1

0xDA to 0xDE

CAPNn MATn TOGn PWMn ECCFnCAPPn

16 bit comparator

Match

CF CR

CCON

0xD8

CCF1 CCF0

PCA IT

Enable

CEXn

PCA counter/timer

“1”“0”

Write to

CCAPnL

Reset

Write to

CCAPnH

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 ... 136 137

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Rainbow-electronics T89C51CC02 Bedienungsanleitung Seite 107