PDI1394L40 查看數據表（PDF） - Philips Electronics

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PDI1394L40

1394 enhanced AV link layer controller

Philips Electronics 

Philips Semiconductors

1394 enhanced AV link layer controller

Preliminary specification

PDI1394L40

13.1.4 Link / Phy Interrupt Enable (LNKPHYINTE) – Base Address: 0x00C

This register is a mirror of the Link/Phy Interrupt Acknowledge (LNKPHYINTACK) register. Enabling an interrupt is accomplished by writing a ‘1’

to the bit corresponding to the interrupt desired.

This register enables the interrupts described in the Link /Phy Interrupt Acknowledge register (LNKPHYINTACK) description. A one in any of the

bits enables that function to create an interrupt. A zero disables the interrupt, however the status is readable in the Link /Phy Interrupt

Acknowledge register.

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

SV01841

Reset Value 0x00000000

Bits 21..0 are interrupt enable bits for the Link/Phy Interrupt Acknowledge (LNKPHYINTACK).

13.1.5 Cycle Timer Register (CYCTM) – Base Address: 0x010

Cycle Timer Register operation is controlled by the Cycle Timer Enable (CYTMREN) bit in the Link Control Register (LNKCTL, 0x004). If the

Cycle Timer Register is disabled, it can be used as a general read write register for Host Interface Firmware testing.

3130 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

CYCLE_SECONDS

CYCLE_NUMBER

CYCLE_OFFSET

Reset Value 0x00000000

Bit 31..25:

R/W Seconds count: 1-Hz cycle timer counter.

Bit 24..12:

R/W Cycle Number: 8kHz cycle timer counter.

Bit 11..0:

R/W Cycle Offset: 24.576MHz cycle timer counter.

SV00276

2000 Dec 15

48

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