CS89712-CB 查看數據表（PDF） - Cirrus Logic

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CS89712-CB

High-Performance, Low-Power System-on-Chip with 10BASE-T Ethernet Controller

Cirrus Logic 

CS89712

Bit

Description

1

RCRS: Right Channel Receive FIFO Service Request (read-only)

0 — Right Channel Receive FIFO is less than half full (five or fewer entries filled) or DAI dis-

abled

1 — Right Channel Receive FIFO is half full or more (six or more entries filled) and DAI opera-

tion is enabled, interrupt request signaled if not masked (if RCRM = 1)

2

LCTS: Left Channel Transmit FIFO Service Request Flag (read-only)

0 — Left Channel Transmit FIFO is more than half full or less (four or fewer entries filled) or DAI

disabled.

1 — Left Channel Transmit FIFO is half full or less (four or fewer entries filled) and DAI opera-

tion is enabled, interrupt request signaled if not masked

(if LCTM = 1)

3

LCRS: 0 — Left Channel Receive FIFO is less than half full (five or fewer entries filled) or DAI

disabled.

1 — Left Channel Receive FIFO is half full or more (six or more entries filled) and DAI opera-

tion is enabled, interrupt request signalled if not masked (if LCRM = 1)

4

Right Channel Transmit FIFO Underrun

0 — Right Channel Transmit FIFO has not experienced an underrun

1 — Right Channel Transmit logic attempted to fetch data from transmit FIFO while it was

empty, request interrupt

5

RCRO: Right Channel Receive FIFO Overrun

0 — Right Channel Receive FIFO has not experienced an overrun

1 — Right Channel Receive logic attempted to place data into receive FIFO while it was full,

request interrupt

6

LCTU: Left Channel Transmit FIFO Underrun

0 — Left Channel Transmit FIFO has not experienced an underrun

1 — Left Channel Transmit logic attempted to fetch data from transmit FIFO while it was empty,

request interrupt

7

LCRO: Left Channel Receive FIFO Overrun

0 — Left Channel Receive FIFO has not experienced an overrun

1 — Left Channel Receive logic attempted to place data into receive FIFO while it was full,

request interrupt

8

RCNF: Right Channel Transmit FIFO Not Full (read-only)

0 — Right Channel Transmit FIFO is full

1 — Right Channel Transmit FIFO is not full

9

RCNE: Right Channel Receive FIFO Not Empty (read-only)

0 — Right Channel Receive FIFO is empty

1 — Right Channel Receive FIFO is not empty

10

LCNF: LCNETelecom Transmit FIFO Not Full (read-only)

0 — Left Channel Transmit FIFO is full

1 — Left Channel Transmit FIFO is not full

Table 62. DAI Control, Data and Status Register Locations (Continued)

112

DS502PP2

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