ADE3700SX 查看數據表（PDF） - STMicroelectronics

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ADE3700SX

Analog LCD Display Engine for XGA and SXGA Resolutions

STMicroelectronics 

Sync Measurement

Register Name

SMEAS_V_TMOT_L

SMEAS_V_TMOT_H

SMEAS_CLEAR

SMEAS_H_CTRL

ADE3700

Table 9: Sync Measurement (Sheet 2 of 8)

Addr

0x0109

0x010A

0x0110

0x0111

Mode Bits Default

Description

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

[7:0]

[7:0]

[7:3]

[2]

[1]

[0]

[7]

[6]

[5]

[4]

[3]

[2]

[1]

[0]

0x1600

0x0

0x0

0x0

0x0

0x0

0x0

0x0

0x0

0x0

0x0

0x0

timeout counter value for vertical

measurement in units of XCLK/256

Reserved

clear sticky status bits

clear all out-of-range event counters

clear all result registers

Reserved

Enable hsync filter -- all hsync pulses less

than SMEAS_FILTER_HS_WIDTH will be

ignored.

measure hsync in the absence of vsync

enable horizontal measurement in free-

running mode

horizontal event edge select

0: positive edge

1: negative edge

Freeze horizontal measurements results

during free-running mode. No meaning in

one shot mode.

0: Do not freeze measurement results. New

result will be available on the next and

subsequent toggle of the polling bit.

1: Freeze the current results. The polling bit

will still toggle and the block continues to

free-running; however, results will not be

updated.

horizontal measurement start

In one-shot mode setting this bit triggers the

start of a measurement. The bit is reset to

zero when the measurement is complete.

horizontal measurement mode

0: free-running

1: one shot

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