CS6150 Amphion Semiconductor Ltd., CS6150 Datasheet - Page 10

• Manufacturer Part Number: CS6150
• Description: Motion JPEG Decoder
• Manufacturer: Amphion Semiconductor Ltd.

10
Table 5: Parameter Bus Definition
The marker data on the decoded JPEG headers output port
on JpgMask[4:0] according to Table 6. The listed segments
will be output if present in the decode stream.
is determined by setting the bit-wise value at the inputs
(Decimal
PTYPE
Value)
CS6150
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
PVALUE OUTPUT
{bit position [15:0]}
000_HMAX[2:0]_
00_YMCU[13:0]
00_XMCU[13:0]
MCUBLK[3:0]_
VMAX[2:0]_
VHM3[3:0]_
VHM2[3:0]_
VHM1[3:0]_
Cs3[7:0]_
JPEG MASK BUS
Cs2[7:0]_
Tq3[1:0]_
VHM0[3:0]
Cs0[7:0]_
Tq0[1:0]_
Cs1[7:0]_
Tq1[1:0]_
Tq2[1:0]_
CsH[15:0]
V3[2:0]_
CsV[15:0]
V2[2:0]_
DRI[15:0]
FY[15:0]:
V0[2:0]_
V1[2:0]_
FX[15:0]
H3[2:0]
H2[2:0]
H0[2:0]
H1[2:0]
NS[2:0]
M o t i o n J P E G D e c o d e r
FY
FX
YMCU
XMCU
Cs0
Tq0
V0
H0
Cs1
Tq1
V1
H1
Cs2
Tq2
V2
H2
Cs3
Tq3
V3
H3
No. of rows in current scan
No. of columns in current scan
Restart interval
HMAX
VMAX
MCUBLK Number of blocks per MCU of the current scan, from 1-10
NS
VHM0
VHM1
VHM2
VHM3
Reserved
Reserved
Reserved
Number of lines in frame
Number of columns in frame
Number of MCUs in Y direction of the current scan
Number of MCUs in X direction of the current scan
Identifier for the first scan component
Quantization table identifier for the first scan component
Vertical sampling factor for the first Scan component. Values = 1-4
Horizontal sampling factor for the first scan component. Values = 1-4
Identifier for the second scan component
Quantization table identifier for the second scan component
Vertical sampling factor for the second scan component, undefined if NS (number of scans) < 2
Horizontal sampling factor for second scan component, undefined if NS < 2
Identifier for the third scan component
Quantization table identifier for the third scan component
Vertical sampling factor for the scan component, undefined if NS < 3
Horizontal sampling factor for the third component, undefined if NS < 3
Identifier of the fourth component
Quantization table identifier for the fourth scan component
Vertical sampling factor for the fourth scan component, undefined if NS < 4
Horizontal sampling factor for the fourth scan component, undefined if NS < 4
Maximal horizontal sampling factor in frame
Maximal vertical sampling factor in frame
Number of scan components in current scan, 1-4
Number of blocks of first component in MCU. Defined as V0*H0 where V0 and HO are
the vertical and sampling factors for the first scan component if NS > 1. Otherwise it is 1.
V0*H0 + V1*H1, undefined when NS < 2
V0*H0 + V1*H1 + V2*H2, undefined when NS < 3
V0*H0 + V1*H1 + V2*H2 + V3*H3, undefined when NS < 4
DESCRIPTION
Table 6: JpgMask Settings
BIT
4
3
2
1
0
DATA MARKER
SOF, SOS, DNL
COM, APP
DHT
DQT
DRI