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1281

Instruction Set

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smode Shift mode

Table 23-70. SHIFT MODE Encoding Format

smode P3 P2 P1 P0 Operation

LSB 1st on HETx / 0 into

OR0 0 0 0 0 Shift Out / Right

MSB

MSB 1st on HETx / 0 into

OL0 0 0 0 1 Shift Out / Left

LSB

LSB 1st on HETx / 1 into

OR1 0 0 1 0 Shift Out / Right

MSB

MSB 1st on HETx / 1 into

OL1 0 0 1 1 Shift Out / Left

LSB

LSB 1st on HETx / Z into

ORZ 0 1 0 0 Shift Out / Right

MSB

MSB 1st on HETx / Z into

OLZ 0 1 0 1 Shift Out / Left

LSB

IRM 1 0 0 0 Shift In / Right HETx into MSB

ILL 1 0 0 1 Shift In / Left HETx into LSB

IRZ 1 0 1 0 Shift In / Right HETx in MSB / LSB into Z

ILZ 1 0 1 1 Shift In / Left HETx in LSB / MSB into Z

cond Specifies the shift condition.

Table 23-71. SHIFT Condition Encoding

C6 C5 Shift condition

0 X Always

1 0 Rising edge of HET[0]

1 1 Falling edge of HET[0]

irq ON generates an interrupt if the Z flag is set. A value of OFF does not

generate an interrupt.

Default: OFF.

data Specifies the 25-bit value for the data field.

Execution

If (SHIFT condition == 0X)

OR (SHIFT condition == 10 AND HET[0] rising edge)

OR (SHIFT condition == 11 AND HET[0] falling edge)

{

If ([P3:P2] == 00)

{

If ((Immediate Data Field == all 0’s AND [P3:P0] == 000X)

OR (Immediate Data Field == all 1’s AND [P3:P0] == 001X))

{

Z = 1;

}

else

{

Z = 0;

}

1058

High-End Timer (N2HET) Module SPNU562–May 2014

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