WAVEFORM GENERATOR

WG_OUTPUT (Waveform Generator)

Address:

1FC0H

 

Reset State:

0000H

The waveform generator output configuration (WG_OUTPUT) register controls the configuration of the waveform generator and PWM module pins. Both the waveform generator and the PWM module share pins with port 6. Having these control bits in a single register enables you to configure all port 6 pins with a single write to WG_OUTPUT.

15

OP1

OP0

SYNC

PE7

7

 

 

 

 

 

 

 

P7

P6

PH3.1

PH3.0

 

 

 

 

8

PE6

PH3.2

PH2.2

PH1.2

 

 

 

0

 

 

 

 

PH2.1

PH2.0

PH1.1

PH1.0

 

 

 

 

Bit

Bit

 

Function

Number

Mnemonic

 

 

 

 

 

 

15

OP1

Output Polarity

 

 

Selects the output polarity for negative-phase outputs WG1#, WG2#,

 

 

and WG3#.

 

 

0

= active-low outputs

 

 

1

= active-high outputs

 

 

 

14

OP0

Output Polarity

 

 

Selects the output polarity for positive-phase outputs WG1, WG2, and

 

 

WG3.

 

 

0

= active-low outputs

 

 

1

= active-high outputs

 

 

 

13

SYNC

Synchronize

 

 

Selects whether updating the WG_OUTPUT register is synchronized

 

 

with another event or occurs immediately after you change it.

 

 

0

= update WG_OUTPUT immediately

 

 

1

= synchronize WG_OUTPUT update with an event

 

 

To ensure that the outputs are in the desired states when the waveform

 

 

generator starts, you should initially clear this bit, then set it later if you

 

 

want subsequent WG_OUTPUT updates to be synchronized with an

 

 

event. (Table 9-4 on page 9-8 lists the events that update WG_OUTPUT

 

 

in each mode.)

 

 

 

12

PE7

P6.7/PWM1 Function

 

 

Selects the port function or the PWM output function of P6.7/PWM1.

 

 

0

= P6.7

 

 

1

= PWM1

 

 

 

11

PE6

P6.6/PWM0 Function

 

 

Selects the port function or the PWM output function of P6.6/PWM0.

 

 

0

= P6.6

 

 

1

= PWM0

 

 

 

 

Figure 9-8. WG Output Configuration (WG_OUTPUT) Register

9-13

Page 212
Image 212
Intel 8XC196MC, 8XC196MD, 8XC196MH manual Wgoutput Waveform Generator, OP1 OP0 Sync PE7, PE6