CS6100 Amphion Semiconductor Ltd., CS6100 Datasheet - Page 8

• Manufacturer Part Number: CS6100
• Description: Motion JPEG Encoder
• Manufacturer: Amphion Semiconductor Ltd.

8
The encoding parameter bus (PValue[15:0]) is a 16-bit output
port used to display configuration and status information
stored within the CS6100 configuration memory. The 4-bit
selector input PType[3:0] determines which internal parame-
ters are displayed on the parameter bus per Table 4.
Table 4: Parameter Bus Definitions
(Decimal Value)
CS6100
PType
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
Cs0[7:0]_Tq0[1:0]_V0[2:0]_H0[2:0]
Cs1[7:0]_Tq1[1:0]_V1[2:0]_H1[2:0]
Cs2[7:0]_Tq2[1:0]_V2[2:0]_H2[2:0]
Cs3[7:0]_Tq3[1:0]_V3[2:0]_H3[2:0]
000_HMAX[2:0]_VMAX[2:0]_
VHM3[3:0]_VHM2[3:0]_
MCUBLK[3:0]_NS[2:0]
VHM1[3:0]_VHM0[3:0]
{bit position [15:0]}
PValue Output
00_YMCU[13:0]
00_XMCU[13:0]
CsH[15:0]
CsV[15:0]
FY[15:0]:
DRI[15:0]
FX[15:0]
M o t i o n J P E G E n c o d e r
ENCODING PARAMETER BUS
FY
FX
YMCU Number of MCUs in Y direction of current scan
XMCU Number of MCUs in X direction of current scan
Cs0 Identifier for the first scan component
Tqo Quantization table identifier for the first scan component
V0
H0
Cs1 Identifier for the second scan component
Tq1
H1
Cs2
Tq2
V2
H2
Cs3
Tq3
V3
H3
Cs3
V3
H3
HMAX Maximal horizontal sampling factor in frame
VMAX Maximal vertical sampling factor in frame
MCUBLK Number of blocks per MCU of the current scan from 1-10
NS
VHM0 Number of blocks of first component in MCU. Defined as V0*H0 where
VHM1 V0*H0 + V1*H1, undefined when NS < 2
VHM2 V0*H0 + V1*H1 + V2*H2, undefined when NS < 3
VHM3 V0*H0 + V1*H1 + V2*H2 + V3*H3, undefined when NS < 4
Reserved
Reserved
Reserved
V1
Vertical sampling factor for the first scan component. Values = 1-4
Horizontal sampling factor for the first scan component. Values = 1-4
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 the 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 third 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
Number of rows in current scan
Number of columns in current scan
Restart Interval
V0 and H0 are the vertical and horizontal sampling factors for the first
scan component if NS < 1. Otherwise = 1
Number of lines in frame
Number of lines in image
Number of scan components in current scan, 1-4
The data available on the PValue port does not contain con-
trol signals used by the CS6100. Many of the values, however,
can be used to control other logic instantiated around the
CS6100, i.e. the FX and FY parameters (PType 0x0 and 0x1)
could be used to control a raster to block converter.
DESCRIPTION