KS7332 INTRODUCTION PRODUCT SUMMARY KS7332 is a digital image signal handling IC aimed at improving image contrast and counter light correction, applicable to CCD-using video camera systems such as camcorders and surveillance cameras. KS7332 receives the CCD output as digital data, analyzes the image's luminance distribution, then outputs a signal with improved dynamic range of luminance and color difference. It also uses a spatial adaptive filter to remove low intensity noise and output a stable image. FEATURES • NTSC/PAL, Normal/Hiband, DVC compatible • 10-bit A/D input • Digital clamp • WDR expansion using non-linear histogram modification • Look up table (LUT) transform using line memory • S1, S2 signals' HUE component correction by look-up-table transform • Built-in memory for histogram storage • Image analysis with histogram LOG function as reference • Color sensitivity correction • Serial micom interface • Built-in operation for connection with AE • 10-bit S1, S2 signal output for DCP I/F • Spatial adaptive noise removal filter for low intensity images • Interpretation of image characteristic through graphic OSD MANUFACTURING PROCESS AND PACKAGE Manufacturing process: 0.35 um silicon gate 3 metals 3.3V CMOS (CSP7L) APPLICATIONS • Camcorder system • Surveillance camera, PC camera 1 48-LQFP-0707 KS7332 TSTO TSTI GND HD12 ND0 SCANEN HIGH PAL DVC VDD MDSEL1 MDSEL0 36 35 34 33 32 31 30 29 28 27 26 25 PIN DIAGRAM SI9 37 24 SO9 SI8 38 23 SO8 VDD 39 22 GND SI7 40 21 SO7 SI6 41 20 SO6 SI5 42 19 SO5 SI4 43 18 SO4 SI3 44 17 SO3 KS7332 7 8 9 10 11 12 SMI SCLK SCSN GND SM0 MSB SO0 6 13 RSTN 48 5 SI0 CLK SO1 VDD 14 4 47 3 SI1 HD VDD 2 SO2 15 V1 16 46 1 45 VD SI2 GND Figure 1. Pin Diagram 2 KS7332 PIN DESCRIPTION Table 1. Pin Description 3 No Name I/O Description Note 1 VD I Vertical driving pulse 2 V1 I Vertical transfer pulse 3 HD I horIzontal driving pulse 4 VDD P Power 5 CLK I System clock 6 RSTN I System reset 7 SMI I Serial data input from system micom 8 SCLK I System micom clock 9 SCSN I System micom reset 10 GND P Ground 11 SMO O Serial data output to system micom 12 MSB I Micom data MSB order 13 SO0 O S1S2 data output 0 for DCP 14 SO1 O S1S2 data output 1 for DCP 15 VDD P Power 16 SO2 O S1S2 data output 2 for DCP 17 SO3 O S1S2 data output 3 for DCP 18 SO4 O S1S2 data output 4 for DCP 19 SO5 O S1S2 data output 5 for DCP 20 SO6 O S1S2 data output 6 for DCP 21 SO6 O S1S2 data output 7 for DCP 22 GND P Ground 23 SO8 O S1S2 data output 8 for DCP 24 SO9 O S1S2 data output 9 for DCP 25 MDSEL0 I Operation mode selection 0 Normal "0" 26 MDSEL1 I Operation mode selection 1 Normal "0" 27 VDD P Power 28 DVC I DVC mode enable signal DVC "1" 8mm "0" 29 PAL I PAL mode enable signal PAL "1" NTSC "0" 30 HIGH I High mode enable signal High "1" Normal "0" 31 SCANEN I Scan enable signal Normal “0” 32 NDO O Namd tree output CCD 3.3 V ADCK (KS7331) TRI-State out Scsn low ACT. "1" MSB first "0" LSB first KS7332 Table 1. Pin Description(Continued) No Name I/O Description 33 HD12 O HD delay output 34 GND P Ground 35 TSTI I Test input 36 TSTO O Test output 37 SI9 I S1S2 data input 9 from ADC 38 SI8 I S1S2 data input 8 from ADC 39 VDD P Power 40 SI7 I S1S2 data input 7 from ADC 41 SI6 I S1S2 data input 6 from ADC 42 SI5 I S1S2 data input 5 from ADC 43 SI4 I S1S2 data input 4 from ADC 44 SI3 I S1S2 data input 3 from ADC 45 SI2 I S1S2 data input 2 from ADC 46 GND P Ground 47 SI1 I S1S2 data input 1 from ADC 48 SI0 I S1S2 data input 0 from ADC Note 4 KS7332 BLOCK DIAGRAM SPSRAM 256 × 10 LUTB SPSRAM 1023 × 10 Preprocess A/D TPUT/ S2 BITS Gnal Preprocess SPSRAM 256 × 12 Histogram SPSRAM 256 × 10 GRAPH SPSRAM 256 × 10 LUTA Histogram Lookuptable Segmentation GRAPH Luminance EXPAND ALPF Out S1/10B SIG SPSRAM 256 × 10 ALPHA Chrominance EXPAND AE MICOM SYNC_GEN Figure 2. Block Diagram 5 MIX KS7332 DESIGN CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS Table 2. Absolute Maximum Ratings Item Symbol Rating Unit Remark DC supply voltage (digital) VDD -0.3 ~ 3.8 V - DC input voltage VIN -0.3 ~ VDD +0.3 V - TSTG -40 ~ 125 °C - ILU ±100 mA - Storage temperature Latch-up current OPERATING TEMPERATURE KS7332 functions within 0 °C ~ +70°C Its AC and DC characteristics must satisfy specifications. ELECTROSTATIC CHARACTERISTICS Table 3. Electrostatic Characteristics Electrostatic Standard Item Pin No Unit Design Goal Remark ±2000 Human body model (HBM) Machine model (MM) ±300 All V ±800 CDM ELECTRICAL CHARACTERISTICS (DC)VSS = 0V, V DD = 3.3 ± 0.3V, Ta = 0 ~ 70 °C Table 4. Electrical Characteristics (DC) Item Symbol Condition Min Typ Max VDD - 3.0 3.3 3.6 High level VIH - 2.0 - - Low level VIL - - - 0.8 High level VOH IOH = -1mA 2.4 - - Low level VOL IOL = 1mA - - 0.4 High level IIH VIN = VDD -10 - 10 Low level IIL VIN = VSS -10 - 10 Tri-state IOZ VOUT = VSS or VDD -10 - Operating current IDD - - Static current ISS - - Supply voltage Input voltage Output voltage Input current Output leakage current Unit Remark VDD, VDDA V 1 2 µA 1 10 µA 3 - 70 mA - - 500 µA - [REMARK] 1: All Input pins 2: All output pins except 3 3: SMO (Tri-state) 6 KS7332 ELECTRICAL CHARACTERISTICS (AC) Table 5. Electrical Characteristics (AC) Item Signal Symbol Design Goal Characteristics Min Typ Max Unit Remark Input data setup time I9 ~ SI0, HD, VD Tsu 5 - - ns VDD = 3.3V ± 0.3V Ta = 0 ~ 70 °C Input data hold time SI9 ~ SI0, HD, VD Thd 5 - - ns VDD= 3.3V ± 0.3V Ta = 0 ~ 70 °C CLK Thd SI9 ~ SI10, HD, VD 7 Tsu KS7332 SYSTEM CONFIGURATION AND OPERATION DESCRIPTION SYSTEM CONFIGURATION CCD KS7332 Graphic Block Sync Signal Generation Block AE CDS AGC ADC Preprocessing Block Expanded Signal Synthesizer Histogram Generating Block DCP Adaptive LPF Block Segmentation Block Chrominance Expander Block Lookuptable Block Micom I/F Luminance Expander Block System Micom Figure 3. System Configuration 8 KS7332 The preprocessing block receives the 10-bit ADC output, carries out digital clamping, black line detection & correction, and preprocess low pass filtering. The histogram generating block uses the preprocessing block's output to generate a probability density function of the image signal luminance output, and stores it in line memory. It also generates a signal for adjusting luminance distribution and sends it to the segmentation block and the look-up-table generating block. The histogram generating block is composed of the active area selection block, luminance signal separation block that uses LPF, histogram accumulation block that uses line memory, and the histogram clip block. The segmentation block uses the accumulated histogram to generate back bias impressing conditions and sends them to the MICOM I/F module for improvement of the dynamic range. The segmentation block is composed of a histogram organizing block, histogram integrating block, gamma adjusting block, back bias adjusting block, and a block that probes the minimum segment using accumulated histograms. The look-up-table block uses the output of the histogram generating block and the segmentation block to generate a conversion function for the improvement of the dynamic range. It is composed of the histogram integrating block, the look-up-table generating block, and the look-up-table 2nd differentiation. The luminance expander receives the LUT value from the look-up-table block and stores it in line memory. It also moves the address by 1 and stores it in a different line memory. The LUT values stored in the two line memories go through spatial and temporal interpolation to receive data with an expanded band zone for luminance signals. The luminance expander is composed of blocks that carry out the following functions: I/F function for LUT-storing line Memory, temporal interpolation function, spatial interpolation function, 8-bit division function for gain calculation, and expanded luminance signal output function. The chrominance expander receives the outputs of the preprocessing block and the luminance expander, adjusts the color difference signal according to the ratio between the expanded and the non-expanded luminance signals, and outputs the expanded chrominance signal. It also adjusts the color data's sensitivity according to the the band zone of the luminance signal. The adaptive LPF block receives the output of the chrominance expander, reduces the high frequency components such as noise in areas with little change in the grey level, and emphasizes edge and other minute details. It also uses a high pass filter to extract the edge of the image. The graphic block receives the accumulated histogram and LUT data, and shows them as graphic data on the currently visible screen. Also, the graphic data is placed in the middle of the screen while 10-bit A/D signals, expanded brightness signals, expanded color signals, edge signals, and noiseless color signals are output to the background according to need. The expanded signal synthesizer receives 10-bit A/D signals, expanded luminance signals, expanded color signals, edge signals, and noiseless color signals. It chooses the needed signals and outputs them to the exterior. It also carries out time delay for each signal so that it has the same delay as the final output. 9 KS7332 SYSTEM OPERATION DESCRIPTION Sync Signal Generating Block The sync signal generating block generates horizontal/vertical count data using the sync signal from the Timing Generator (TG). It also generates SP (Start Point) data using DVC, HIGH, PAL, and AP_ADJ (Start Point Adjustment) from System MICOM, and FLD (Field) signals using HD, VD, and PAL signals. • Internal vertical counter (VCNT: line counter) • Internal horizontal counter (HCNT: pixel counter) • Internal field signal (FLD) • Internal horizontal active area signal (HACTIVE) • Internal vertical active area signal (VACTIVE) Preprocessing Block The preprocessing block uses the CCD's A/D output to carry out digital clamping, black line detection & correction, and preprocess low pass filtering, then outputs to the histogram generating block. • Digital clamping • Black line detection & correction • Preprocess low pass filtering Histogram Generating Block The histogram generating block uses the output from the preprocessing block to generate a probability density function for the video signal's luminance output and stores it in line memory. A signal for luminance distribution adjustment is generated and sent to the segmentation block and look-up-table block. • ACTIVE Area Selection • Luminance Signal Separation using LPF • Histogram Accumulation using Line Memory • Histogram Clip feature Segmentation Block The segmentation block uses the accumulated histogram from the histogram generating block for the improvement of dynamic range. back bias impressing conditions are generated and sent to the look-up-table block and the MICOM I/F module. • Histogram segmentation • Histogram integration • Histogram minimum section probing feature • Gamma control • Back bias adjustment 10 KS7332 Look-Up-Table Block The look-up-table block uses the output of the histogram generating block and the segmentation block to generate a conversion function for the improvement of dynamic range. It is composed of the histogram integrating block, look-up-table generating block, and the look-up-table 2nd differentiation. • Histogram Integration • Look-Up-Table Generating ability • Look-Up-Table 2nd Differentiation Luminance Expander The luminance expander receives the LUT value from the look-up-table block and stores it in line memory. It also moves the address by 1 and stores it in a different line memory. The LUT values stored in the two line memories are put through temporal and spatial interpolation to receive data with an expanded band zone for luminance signals. • Line memory I/F function for look-up-table value storage • Temporal interpolation • Spatial interpolation • 8-bit division for gain calculation • Expanded luminance signal output feature Chrominance Expander The chrominance expander receives the outputs of the preprocessing block and the luminance expander, adjusts the color difference signal according to the ratio between the expanded and non-expanded luminance signals, and outputs the expanded chrominance signal. It also adjusts the color data's sensitivity according to the the band zone of the luminance signal. • Color difference signal adjustment according to ratio between expanded and non-expanded luminance signals • Color data sensitivity adjustment according to luminance signal band zone Adaptive LPF Block The adaptive LPF block receives the output of the chrominance expander, reduces high frequency components such as noise in areas with little change in the grey level, and emphasizes edge and other minute details. It also uses a high pass filter to extract the edge of the image. • Horizontal signal delay • Weight calculation of neighboring picture element pixels • Adaptive noise elimination • Edge emphasis and extraction 11 KS7332 Graphic Block The graphic block receives the accumulated histogram and LUT data, and shows them as graphic data on the currently visible screen. Also, the graphic data is placed in the middle of the screen while 10-bit A/D signals, expanded luminance signals, expanded color signals, edge signals, and noiseless color signals are output to the background according to need. • Fixing graphic data to the middle • Graphic data output • Background screen selection output • Graphic data status selection Expanded Signal Synthesizer The expanded signal synthesizer receives 10-bit A/D signals, expanded luminance signals, expanded color signals, edge signals, and noiseless color signals. It chooses the needed signals and outputs them to the exterior. It also carries out time delay for each signal so that it has the same delay as the final output. • 10-bit A/D signal input feature • Expanded luminance signal input feature • Expanded color signal input feature • Edge signal input feature • Noiseless color signal input feature • Selective input signal output • Input signal delay feature 12 KS7332 MICOM REGISTER TABLE OPERATION DESCRIPTION The start signal and clock operate in slave mode, so this part is nonsychronous to the rest of the system. The register setting is normally carried out for all segments within the field, and it is latched at negedge VD when scsn is restored to high. SCSN td1 thw tlw td2 SCLK tsu SI thd si_data[255] si_data[254] si_data[0] tdo so_data[255] so_data[254] SO so_data[0] Figure 4. Operation Description Symbol 13 Description Standard (µs) min max td1 SCSN low edge to SCLK low edge 0.2 - td2 SCLK high edge to SCSN high edge 0.2 - thw SCLK high width 0.2 - tlw SCLK low width 0.2 - tsu SI data setup time 0.2 - thd SI data hold time 0.2 - tdo SO data out delay time - 0.1 KS7332 MICOM INPUT Table 6. Micom Input Register Bits MICOM Command Default Value Function OUT_MODE [2:0], DLY_MODE [4:0] 1111_0001 ¨ OUT_MODE: Output mode selection OUT_MODE [255:248] MODE 000 Input 001 Preprocess module output 010 WDR output 011 Saturation output 100 Graphic output 101 EDGE output Default WDR + saturation + ALPF output ¦DLY_MODE: Output delay mode selection - For matching output's delay DLY_MODE MODE 00000 No delay 00001 1 clock delay 00010 2 clock delay 10100 20 clock delay Default 21 clock delay 14 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function CLPEN, SORSL, V1_EXIST, GR_MODE [1:0], GRB_MODE [2:0] CLPEN [247:240] SORSL V1_EXIST 111X_XXXX GR_MODE [1:0] ¨ CLPEN: On/off of digital clamp operation; on = '1', off = '0' ¦SORSL: On/off of preprocess LPF operation; on = '0', off = '1' Æ V1_EXIST: V1 signal existence; yes = '0', no = 1' Ø GR_MODE: Graphic mode - GR_MODE[0]: Histogram CLIP feature (DO_HIST >> GR_MODE[0]) - GR_MODE[1]: DOT/White graphic selection feature DOT = '1', WHITE = '0' × GRB_MODE : Background screen in graphic mode GRB_MODE MODE 000 Black 001 Input 010 Preprocess module output 011 WDR output 100 Saturation output 101 EDGE output Default WDR + saturation + ALPF output CMP_ADJ [3:0], SP_ADJ [3:0] [239:232] 0000_0000 - CMP_ADJ: Digital clamp operating range adjustment - SP_SDJ: Starting point adjustment of horizontal active area selection for AE POFFSET [7:0] [231:224] GRB_MODE [2:0] 0000_0000 POFFSET [7:0] - POFFSET: Used when adding or subtracting the OFFSET to the 8 picture element pixels, integrated and averaged over TCLP SP_H [7:0] 0001_1001 [223:216] SP_H [7:0] - Horizontal active starting point for active area selection = SP_H << 2 15 KS7332 Table 6. Micom Input(Continued) Register Bits MICOM Command Default Value Function LP_H [7:0] [215:208] 0111_1101 LP_H [7:0] - Horizontal active starting point for active area selection = LP_H << 2 SP_V [7:0] 0001_0100 [207:200] LP_H [7:0] - Vertical active starting point for active area selection LP_V [7:0] [199:192] 1111_0000 LP_V [7:0] - Vertical active starting point for active area selection EDGE_AMP [3:0], BACK_SP [3:0] EDGE_AMP [3:0] 0000_0000 BACK_SP [3:0] ¨ EDGE_AMP: EDGE amplification ratio ¦BACK_SP: Back bias allocation conditions [191:184] BACK_SP MODE 0000 No back bias 0001 - 1000 BACK_SP (1) 1111 Reserved (2) Default Reserved NOTES: 1. Given value between 1 ~ 8 2. Back-bias point from hlog value 16 KS7332 Table 6. Micom Input(Continued) Register Bits MICOM Command Default Value Function BACK_WT [3:0], HIST_WT [3:0] 0000_1000 EDGE_AMP [3:0] BACK_SP [3:0] ¨ BACK_WT: Back bias weight BACK-BIAS Point BACK_WT [183:176] ¦HIST_WT: Histogram equalization and bypass weight ( 0 ~ 15 ) LUT 1023 HIST_WT = 15 HIST_WT = 0 0 255 LUT_GAIN [7:0] 0100_0000 LUT_GAIN [7:0] - Gain that makes the maximum LUT value = 1023 - LUT_GAIN = 2 22 / (LP_H X LP_V) If 64 when Image area size is 256 X 256, maximum LUT value is 1023 LUT [175:168] 1023 0 17 255 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits [167:160] Default Value Function LTI_ON, LSI_ON, LUT_TAB [2:0], LUT_HPF_SFT [2:0] LTI_ON LSI_ON LUT_TAB [2:0] 1110_0010 LUT_HPF_SFT [2:0] ¨ LTI_ON: Temporal interpolation for LUT on = '1', off = '0' ¦LSI_ON: Spatial interpolation for LUT on = '1', off = '0' Æ LUT_TAB: TAB adjustment for LUT 2nd differentiation compensation LUT_TAB [159:152] MODE 001 ±1 TAB 010 ±2 TAB 011 ±3 TAB 100 ±4 TAB Default 0 TAB Ø LUT_HPF_SFT: - LUT 2nd differentiation compensation gain - Noise reduction by relieving sudden temporal noise generator LTIC [3:0], CH_SEL [3:0] LTIC [3:0] 0000_1000 CH_SEL [3:0] ¨ LTIC: - Temporal interpolation coefficient for LUT. Prevents LUT from changing suddenly over time. - If TIC is closer to 0, follow the current LUT, and if closer to 255, follow the previous LUT. Without LTIC With LTIC 18 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function ¦CH_SEL: Chroma LPF selection CH_SEL MODE S1 S2 S1 S2 S1 S2 [159:152] 0000 [ 0001 [ 0010 [ 0011 [ 0100 [ 0101 [ 0110 -1 1 1 1 -1 -2 1 -1 2 -1 1 -2 -1 1 -1 [ -1 1 -1 1 0111 [ -1 -1 1 Default [ 1 1 -1 -1 1 ]/ 2 ]/ 2 ]/ 4 ]/ 4 ]/ 4 ]/ 4 ]/ 4 ]/ 4 ]/ 2 Processing point BOUND0 [7:0] [151:144] 1000_0000 BOUND0 [7:0] - BOUND0: changing point value for luminance level 0's CHROMA gain adjustment. BOUND32 [3:0] 1000_0000 [143:136] BOUND32 [7:0] - BOUND32: changing point value for luminance level 32's CHROMA gain adjustment BOUND64 [3:0] 1000_0000 [135:128] BOUND64 [7:0] - BOUND64: changing point value for luminance level 64's CHROMA gain adjustment BOUND128 [3:0] 1000_0000 [127:120] BOUND128 [7:0] - BOUND128: changing point value for luminance level 128's CHROMA gain adjustment 19 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function BOUND256 [3:0] 1000_0000 BOUND256 [7:0] - BOUND256: changing point value for luminance level 256's CHROMA gain adjustment BOUND256 [119:112] BOUND128 BOUND64 BOUND32 BOUND0 0 NOTE: 32 64 128 256 Luminance Value BOUND0, BOUND32, BOUND64, BOUND128, and BOUND256 are for adjusting color signal sensitivity, which strengthens the color suppress of all areas. HLOG_ON, SAT_ON, ALPF_WTSFT [2:0], SHPF_SFT[2:0] 1110_0001 20 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function HLOG_ON SAT_ON ALPF_WTSFT [2:0] SHPF_SFT[2:0] ¨ HLOG_ON: - 1: Histogram log accumulation output - 0: LUT control point value output LUT 1023 0 255 0 Histogram LOG Value 255 LUT Changing Point Value Output ¦SAT_ON: Saturation block's on/off ; on = '1', off = '0' Æ ALPF_WTSFT: Gain of slope for ALPF ALPF_WTSFT = 7 ALPF_WTSFT = 0 ALPF_THSFT = 0 THRESHOLD Ø SHPF_SFT: HPF gain ALPF_THP [7:0] [103:96] 1000_0000 ALPF_THP [7:0] - ALPF_THP: ALPF threshold AEW1HS [7:0] [95:88] AEW1HS [7:0] - Refer to KS7331's DCP ODM block 21 0010_0000 KS7332 Table 6. Micom Input(Continued) Register Bits [87:80] MICOM Command Default Value Function AEW1HE [7:0] 0010_1010 AEW1HE [7:0] - Refer to KS7331's DCP ODM block AEW1VS [7:0] [79:72] 0001_0000 AEW1VS [7:0] - Refer to KS7331's DCP ODM block AEW1VE[7:0] [71:64] 0101_0000 AEW1VE [7:0] - Refer to KS7331's DCP ODM block AEW2HS [7:0] [63:56] 0001_0000 AEW2HS [7:0] - Refer to KS7331's DCP ODM block AEW2HE [7:0] [55:48] 1111_1110 AEW2HE [7:0] - Refer to KS7331's DCP ODM block AEW2VS [7:0] [47:40] 0001_0000 AEW2VS [7:0] - Refer to KS7331's DCP ODM block AEW2VE [7:0] [39:32] 0100_0010 AEW2VE [7:0] - Refer to KS7331's DCP ODM block AEH_TH [7:0] [31:24] 1111_1111 AEH_TH [7:0] - Refer to KS7331's DCP ODM block 22 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function [23:16] AEL_TH [7:0] 0000_0000 AEH_TH [7:0] [7:0] - Refer to KS7331's DCP ODM block AEINSEL, AELPFSEL AEINSEL AELPFSEL X [5:0] - Refer to KS7331's DCP ODM block RESERVED [7:0] [255:248] 10XX_XXXX 1111_0000 RESERVED [7:0] - Reserved RESERVED [7:0] [247:240] 0000_1111 RESERVED [7:0] - Reserved HLOG0 [7:0] [239:232] ? HLOG0 [7:0] - Log scaling and accumulated value for histogram of luminance level 0 ~ 11 HLOG1 [7:0] ? [231:224] HLOG1 [7:0] - Log scaling and accumulated value for hIstogram of luminance level 12 ~ 16 HLOG2 [7:0] ? [223:216] HLOG2 [7:0] - Log scaling and accumulated value for histogram of luminance level 17 ~ 23 HLOG3 [7:0] ? [215:208] HLOG3 [7:0] - Log scaling and accumulated value for histogram of luminance level 24 ~ 32 23 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function HLOG4 [7:0] ? [207:200] HLOG4 [7:0] - Log scaling and accumulation value for histogram of luminance level 33 ~ 45 HLOG5 [7:0] ? [199:192] HLOG5 [7:0] - Log scaling and accumulation value for histogram of luminance HLOG6 [7:0] [191:184] ? HLOG5 [7:0] - Log scaling and accumulation value for histogram of luminance HLOG7 [7:0] [183:176] ? HLOG7 [7:0] - Log scaling and accumulation value for histogram of luminance HLOG8 [7:0] [175:168] ? HLOG8 [7:0] - Log scaling and accumulation value for histogram of luminance HLOG9 [7:0] [167:160] ? HLOG9 [7:0] - Log scaling and accumulation value for histogram of luminance level 182 ~ 255 RESERVED [31:0] 0000_0000 [159:128] RESERVED [31:0] - Reserved AESUMH_W1 [7:0] [127:120] ? AESUMH_W1 [7:0] - Refer to KS7331's DCP ODM block 24 KS7332 Table 6. Micom Input(Continued) MICOM Command Register Bits Default Value Function AESUMM_W1 [7:0] [119:112] AESUMH_W1 [7:0] - Refer to KS7331's DCP ODM block AESUML_W1 [7:0] [111:104] ? AESUML_W1 [7:0] - Refer to KS7331's DCP ODM block AESUMH_W2 [7:0] [103:96] ? AESUMH_W2 [7:0] - Refer to KS7331's DCP ODM block AESUMM_W2 [7:0] [95:88] 0000_0000 AESUMM_W2 [7:0] - Refer to KS7331's DCP ODM block AESUML_W2 [7:0] [87:80] ? AESUML_W2 [7:0] - Refer to KS7331's DCP ODM block AECLIPH [7:0] [79:72] ? AECLIPH [7:0] - Refer to KS7331's DCP ODM block AECLIPL [7:0] [71:64] ? AECLIPL [7:0] - Refer to KS7331's DCP ODM block RESERVED [63:0] [63:0] RESERVED [63:0] - Reserved 25 ? 0000_0000 KS7332 APPLICATION CIRCUIT MDSEL0 VDD DVC PAL HIGH SO9 SO8 VDD GND SI7 SO7 SI6 SO6 SI5 SO5 SI4 SO4 KS7332 SI3 SO3 MSB SM0 GND HD V1 SCSN SO1 SI0 SCLK SI1 SMI VDD RSTN GND CLK SO2 VDD SI2 VD 10Bit ADC MDSEL1 SI8 CDS AGC SCANEN ND0 GND HD12 SI9 TSTI CCD TSTO Mode Setting SO0 DCP System Micom Figure 5. Application Circuit 26