WAVEFORM GENERATOR

9.2WAVEFORM GENERATOR SIGNALS AND REGISTERS

Table 9-1 describes the waveform generator’s signals, and Table 9-2 briefly describes the control and status registers.

Table 9-1. Waveform Generator Signals

Port

 

Waveform

 

 

 

Generator

Type

Description

Pin

 

 

 

Signal

 

 

 

 

 

 

 

 

 

 

 

 

 

P6.0

 

WG1#

O

Waveform generator phase 1 negative output.

 

 

 

 

 

 

P6.1

 

WG1

O

Waveform generator phase 1 positive output.

 

 

 

 

 

 

P6.2

 

WG2#

O

Waveform generator phase 2 negative output.

 

 

 

 

 

 

P6.3

 

WG2

O

Waveform generator phase 2 positive output.

 

 

 

 

 

 

P6.4

 

WG3#

O

Waveform generator phase 3 negative output.

 

 

 

 

 

 

P6.5

 

WG3

O

Waveform generator phase 3 positive output.

 

 

 

 

 

EXTINT

I

Input to the waveform generator’s protection circuitry.

 

 

 

 

 

 

.

 

 

 

 

 

 

 

Table 9-2. Waveform Generator Control and Status Registers

 

 

 

 

 

Mnemonic

 

Address

 

Description

 

 

 

 

 

INT_MASK1

 

 

0013H

Interrupt Mask 1

 

 

 

 

The EXTINT bit enables or disables the EXTINT interrupt.

 

 

 

 

8XC196MH: The WG bit enables or disables the waveform generator

 

 

 

 

interrupt.

 

 

 

 

8XC196MC, MD: The PI bit enables or disables the multiplexed peripheral

 

 

 

 

interrupt. The corresponding bit in the PI_MASK register enables or disables

 

 

 

 

the individual sources of the peripheral interrupt.

 

 

 

 

 

INT_PEND1

 

 

0014H

Interrupt Pending 1

 

 

 

 

Any set bit indicates a pending interrupt request.

 

 

 

 

 

PI_MASK

 

 

1FBCH

Peripheral Interrupt Mask

(MC, MD)

 

 

 

8XC196MC, MD: The WG bit enables or disables the waveform generator

 

 

 

 

 

 

 

 

interrupt as one of the possible sources of the multiplexed peripheral

 

 

 

 

interrupt. The PI bit in INT_MASK1 must be set to enable the multiplexed

 

 

 

 

peripheral interrupt.

 

 

 

 

 

PI_PEND

 

 

1FBEH

Peripheral Interrupt Pending

(MC, MD)

 

 

 

Any set bit indicates a pending interrupt request.

 

 

 

 

 

 

 

 

WG_COMP1

 

1FC2H

Waveform Generator Compare Buffers

WG_COMP2

 

1FC4H

Each phase compare buffer contains a value that is compared with the

WG_COMP3

 

1FC6H

 

counter value. The action that is performed when a match occurs depends

 

 

 

 

 

 

 

 

on the operating mode.

 

 

 

 

 

 

9-3

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Image 202
Intel 8XC196MH, 8XC196MD manual Waveform Generator Signals and Registers, Waveform Generator Control and Status Registers