CS48L32 datasheet(82/192 Pages) CIRRUS

82 / 192 page

Cirrus Logic

DS1219F4

CS48L32

4.5 DSP Peripheral Control

Table 4-29. Event Logger (EVENTLOG1) Control

Bit

Label

Default

Description

R1114112 (0x110000)

EVENTLOG1_CONTROL

19:16 EVENTLOG1_DBTIME[3:0]

0x0

Event Log input debounce

0x0 = 93.75

s

0x1 = 1.5 ms

0x2 = 3 ms

0x3 = 6 ms

0x4 = 12 ms

0x5 = 24 ms

0x6 = 48 ms

0x7 = 96 ms

0x8 = 192 ms

0x9 = 384 ms

0xA = 768 ms

0xB–0xF = Reserved

EVENTLOG1_DSP_CLK_EN

Event Log clock control

0 = Disabled

1 = Enabled

If this bit is set, SYSCLK is enabled whenever the Event Log

FIFO buffer is not empty—this allows the Event Log to

process events if the system clock is disabled.

EVENTLOG1_RST

Event Log Reset

Write 1 to reset the status outputs and clear the FIFO buffer.

EVENTLOG1_EN

Event Log Enable

0 = Disabled

1 = Enabled

R1114120 (0x110008)

EVENTLOG1_TIMER_SEL

Event Log Timer Source Select

0 = Timer 1

1 = Timer 2

Note that the event log must be disabled when updating this

field.

R1114136 (0x110018)

EVENTLOG1_FIFO_

CONTROL1

3:0 EVENTLOG1_FIFO_

WMARK[3:0]

0x1

Event Log FIFO Watermark. The watermark status output is

asserted when the number of FIFO locations available for new

events is less than or equal to the FIFO watermark.

Valid from 0 to 15.

R1114140 (0x11001C)

EVENTLOG1_FIFO_

POINTER1

EVENTLOG1_FULL

Event Log FIFO Full Status. This bit, when set, indicates that

the FIFO buffer is full. It is cleared when a new value is written

to the FIFO read pointer, or when the event log is Reset.

EVENTLOG1_WMARK_STS

Event Log FIFO Watermark Status. This bit, when set,

indicates that the FIFO space available for new events to be

logged is less than or equal to the watermark threshold.

EVENTLOG1_NOT_EMPTY

Event Log FIFO Not-Empty Status. This bit, when set,

indicates one or more new sets of logged event data in the

FIFO.

11:8 EVENTLOG1_FIFO_

WPTR[3:0]

0x0

Event Log FIFO Write Pointer. Indicates the FIFO index

location in which the next event is logged.

This is a read-only field.

3:0 EVENTLOG1_FIFO_

RPTR[3:0]

0x0

Event Log FIFO Read Pointer. Indicates the FIFO index

location of the first set of unread data, if any exists. For the

intended FIFO behavior, this field must be incremented after

the respective data has been read.

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