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 

CLK

T0 T1 T2 T3 T4

CKE

nCS

all

nRAS /

nCAS / nWE

NOP REF NOP NOP NOP (ACT)

tRP

tRC1

auto precharge

DQM

DQ

Bank sel

A10

(prech sel)

addr

Figure 30. SDRAM Refresh Cycles

CL[2]

CL[1]

FRM

M

DD[3:0]

t20

t15

t16

t17

t18

t19

t21

t22

t23

Notes: 1. The figure shows the end of a line.

2. If FRM is high during the CL[1] pulse, this marks the first line in the display.

3. CL[2] low time is doubled during the CL[1] high pulse

Figure 31. LCD Controller Timings

CS89712

DS502PP2

157

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