TMP93CS32F datasheet(41/180 Pages) TOSHIBA

41 / 180 page

TMP93CS32

2004-02-10

93CS32-39

(3) Micro DMA start vector

When the CPU reads the interrupt vector after accepting an interrupt, it

simultaneously compares the interrupt vector (Bits 2 to 6 of the interrupt vector) with

each channel’s Micro DMA start vector. When the two match, the interrupt from the

channel whose value matched is processed in Micro DMA mode.

If the interrupt vector matches more than one channel, the channel with the lower

channel number has a higher priority.

Micro DMA0 Start Vector

Bit symbol

DMA0V4

DMA0V3

DMA0V2

DMA0V1

DMA0V0

Read/Write

After reset

DMA0V

(007CH)

(Note)

Function

Micro DMA channel 0 processed by matching bits 2 to 6 of the interrupt vector.

Micro DMA1 Start Vector

Bit symbol

DMA1V4

DMA1V3

DMA1V2

DMA1V1

DMA1V0

Read/Write

After reset

DMA1V

(007DH)

(Note)

Function

Micro DMA channel 1 processed by matching bits 2 to 6 of the interrupt vector.

Micro DMA2 Start Vector

Bit symbol

DMA2V4

DMA2V3

DMA2V2

DMA2V1

DMA2V0

Read/Write

After reset

DMA2V

(007EH)

(Note)

Function

Micro DMA channel 2 processed by matching bits 2 to 6 of the interrupt vector.

Micro DMA3 Start Vector

Bit symbol

DMA3V4

DMA3V3

DMA3V2

DMA3V1

DMA3V0

Read/Write

After reset

DMA3V

(007FH)

(Note)

Function

Micro DMA channel 3 processed by matching bits 2 to 6 of the interrupt vector.

Note: Read-modify-write instruction is prohibited.

Figure 3.4.7 Micro DMA Start Vector Register

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