1.1 Block diagrams
The block diagrams below show the functional modules of Ravin-M and Ravin-L,
the bus systems and the external signals.
APB slave
APB
AHB
Drawing
Engine
VO0CLK
VO0CLK
HCLK
HCLK
HCLK
HCLK
HCLK
VO1CLK
VO1CLK
SYSRESET
SYSRESET
SYSRESET
SYSRESET
SYSRESET
SYSRESET
Video
Input
VI0SYNC1
VI0CLK
VI0SYNC2
VI0R[5:0]
VI0G[5:0]
VI0B[5:0]
ITU0[7:0]
Video
Output
1
VO1HSYNC
VO1VSYNC
VO1CLK
VO1R[5:0]
VO1G[5:0]
VO1B[5:0]
Video
Output
0
VO0HSYNC
VO0VSYNC
VO0CLK
VO0EN
VO0R[5:0]
VO0G[5:0]
VO0B[5:0]
System
Controller
XT1
XT2
RESET
Host-I/F
HLBD[7:0]
HADD[15:0]
LB
us-I/F
ADB
us-I/F
HADBEN[1:0]
HADA[20:0]
HLBWR
HLBRD
HLBCS
HLBDRQ
HINT
HADWAIT
HADWR
HADRD
HADCS
Ex
ter
nal M
emor
y I/F
MD[31:0]
MA[24:0]
MCS0
MCS1
MDCKE
MDCLK
MDBA[1:0]
MDDQM[3:0]
MDFBCLK
MDA10PC
MDRAS
MDWE
MSOE
MSWR
MSBEN[3:0]
MDCAS
C
ommon I/F
SDR
AM-I/F
Sta
tic
memor
y
I/F
APB master
AHB master
AHB master
AHB master
AHB slave
AHB slave
Slave
APB slave
AHB master
AHB slave
AHB master
APB slave
Ravin-M
Figure 1-1 Ravin-M block diagram
Chapter 1
Introduction
12
Preliminary User's Manual S19203EE1V3UM00
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